engines fo sale

[forcefed6]

i got engines, head porting, custom cams, turbo stuff, alot of import stuff for sale. tell me what you want and i can get it. just make a list and i will hook you up. :smokin:

[H3llphyre]

Originally posted by forcefed6
i got engines, head porting, custom cams, turbo stuff, alot of import stuff for sale. tell me what you want and i can get it. just make a list and i will hook you up. :smokin:

Find me a nice set of AFR 190 heads for an LT1. Oh, and to add to that list. Find me a set of headers (long tube) for an LT1 b-body that don't cost over a grand. Preferably in the $700 range or cheaper.

[X]

Summit sells headers for $300-$600 area.

[H3llphyre]

Originally posted by DaRam
Summit sells headers for $300-$600 area.

They sell shorty headers for the b-bodies (caprice, impalaSS)... They are about $450. Long tubes are about $1000-1500.... Which is why I asked.

[forcefed6]

yea, summit is a good place too get them from. i cant really competer with naything you can get out of summit. i think you wanted full lenght headers though and i am lookin for them now. and those afr heads are good, but the stock lt1 heads can flow about the same with a good port job which i can do here. itll be a hell of alot cheaper too.

ill be in touch bro

[FATBLOCKMARO]

Originally posted by forcefed6
yea, summit is a good place too get them from. i cant really competer with naything you can get out of summit. i think you wanted full lenght headers though and i am lookin for them now. and those afr heads are good, but the stock lt1 heads can flow about the same with a good port job which i can do here. itll be a hell of alot cheaper too.

ill be in touch bro


I AM IN NEED (VERY MUCH SO) OF A SET OF BIG BLOCK CHEVY HEADS ....I NEED ALUMINUM AND GOOD FLOWING (BLOWER MOTOR) LET ME KNOW PLEASE ....I AM NOT A STROKER IF YOU CAN SET ME UP W/ A GOOD DEAL I WILL BUY!!!! HOOK ME UP BRO!!!!

[FATBLOCKMARO]

Originally posted by forcefed6
yea, summit is a good place too get them from. i cant really competer with naything you can get out of summit. i think you wanted full lenght headers though and i am lookin for them now. and those afr heads are good, but the stock lt1 heads can flow about the same with a good port job which i can do here. itll be a hell of alot cheaper too.

ill be in touch bro


OH AND ONE MORE THING IF I SENT YOU THE LOWER HALF OF MY BLOWER INTAKE WHAT WOULD YOU CHARGE ME TO PORT MATCH THAT TO MY HEADS

ONCE AGAIN HOOK IT UP!!!!!!

[H3llphyre]

Originally posted by forcefed6
yea, summit is a good place too get them from. i cant really competer with naything you can get out of summit. i think you wanted full lenght headers though and i am lookin for them now. and those afr heads are good, but the stock lt1 heads can flow about the same with a good port job which i can do here. itll be a hell of alot cheaper too.

ill be in touch bro

Yes, I want long tube exhaust headers... I know a few companies make them, the most popular being called the "tri-Y's". They are about $1400. A little more then I was willing to pay. The summit shorties are $450, like I said, but I am not overly sure about the performance gains.

I know the cast iron heads on the b-bodies are far superior to the alum one off the f-bodies (flow wise). I wouldnt mind porting a set, I just need some sort of idea on cost. I have seen the AFR's go for about $1400, which I don't consider bad for a NEW set of heads. How much do you think a pretty extensive porting on the iron heads would cost. Getting you a set is EASY, as I have a spare motor. Of course, if I replace/port the heads, I will be looking for a cam as well. Those are easy to come by, so I am not overly worried about it. Tell you what, here is what I am looking to do.

I want to get about 300-350rwhp (without any juice) out of the LT1 in the caprice. I think I want to stick with the auto (4L60e) for now, as the T-56 swap isnt a priority. I have full plans on (re)building and engine for the car, as I am not going to spend time on an engine with 200K miles on it. Like I said, I have a spare, just looking for the best route. Looked at 383 strokers, 396 strokers... Not sure if I want to go that route with a daily driver. Maybe just a 355. So... the question is. Can you get my ported heads, decent headers (shorties are okay i suppose), and a cam that will bring me close to this? I know that a CAI and full exhaust are worth a decent amount of power on those engines and I will be working on setting something up there. But, like I said, I have a target, just trying to get there for a decent price.

[H3llphyre]

Originally posted by FATBLOCKMARO
OH AND ONE MORE THING IF I SENT YOU THE LOWER HALF OF MY BLOWER INTAKE WHAT WOULD YOU CHARGE ME TO PORT MATCH THAT TO MY HEADS

ONCE AGAIN HOOK IT UP!!!!!!

Oh yeah... Speaking of port matching. The intake on the LT1 would have to be port matched to whatever porting was done on the heads... Throw that in too... Oh, and maybe a larger TB for the LT1... Hmm, the list grows more and more.

How about this. You know my target. Just put a list of shit together with some prices and let me know.

[X]

Originally posted by H3llphyre
They sell shorty headers for the b-bodies (caprice, impalaSS)... They are about $450. Long tubes are about $1000-1500.... Which is why I asked.

Ah...sorry, didn't notice the long tube part.

[X]

Originally posted by FATBLOCKMARO
I AM IN NEED (VERY MUCH SO) OF A SET OF BIG BLOCK CHEVY HEADS ....I NEED ALUMINUM AND GOOD FLOWING (BLOWER MOTOR) LET ME KNOW PLEASE ....I AM NOT A STROKER IF YOU CAN SET ME UP W/ A GOOD DEAL I WILL BUY!!!! HOOK ME UP BRO!!!!

Jesse, what happened with you trading Denis?

[FATBLOCKMARO]

Originally posted by DaRam
Jesse, what happened with you trading Denis?


:eh:

[X]

You should call him up and find out. Those heads he has are pretty sweet.

[FAST4x4]

Originally posted by DaRam
Jesse, what happened with you trading Denis?

He knows what the heads are really worth, but doesn't want to dish out the cash or the parts for trade. That's what happened to trading me.

[X]

Hey Denis, what's up?

[nazty tc]

a stock tb for a lt1 is fine i wouldnt recomend replacing unless your gettin into mocho power but back to the post i could be intrested in the port heads/intake what are we looking at for pricing? itsa lt1 also

[FATBLOCKMARO]

Originally posted by FAST4x4
He knows what the heads are really worth, but doesn't want to dish out the cash or the parts for trade. That's what happened to trading me.

MAKE ME AN OFFER THATS REASONABLE

[H3llphyre]

Originally posted by naZ-t z28
a stock tb for a lt1 is fine i wouldnt recomend replacing unless your gettin into mocho power but back to the post i could be intrested in the port heads/intake what are we looking at for pricing? itsa lt1 also

Isnt the F-body TB bigger then the b-body TB? Either way, my heads flow better then yours stock :P

[nazty tc]

ya wanna race:P i do beleive there the same .i could be wrong but either way there not worth the money you spend on them *highjack thread off*:thumbsup:

[NickPSI]

I need a bellhousing from an 84-88 corvette.

[FATBLOCKMARO]

Originally posted by forcefed6
i got engines, head porting, custom cams, turbo stuff, alot of import stuff for sale. tell me what you want and i can get it. just make a list and i will hook you up. :smokin:



YO BUDDY YOU STILL ALIVE???? THERE IS A CHANCE FOR $$$ TO BE MADE HERE HOOK IT UP BRO:thumbsup:

[grygst76]

Originally posted by H3llphyre
Yes, I want long tube exhaust headers... I know a few companies make them, the most popular being called the "tri-Y's". They are about $1400. A little more then I was willing to pay. The summit shorties are $450, like I said, but I am not overly sure about the performance gains.

I know the cast iron heads on the b-bodies are far superior to the alum one off the f-bodies (flow wise). I wouldnt mind porting a set, I just need some sort of idea on cost. I have seen the AFR's go for about $1400, which I don't consider bad for a NEW set of heads. How much do you think a pretty extensive porting on the iron heads would cost. Getting you a set is EASY, as I have a spare motor. Of course, if I replace/port the heads, I will be looking for a cam as well. Those are easy to come by, so I am not overly worried about it. Tell you what, here is what I am looking to do.

I want to get about 300-350rwhp (without any juice) out of the LT1 in the caprice. I think I want to stick with the auto (4L60e) for now, as the T-56 swap isnt a priority. I have full plans on (re)building and engine for the car, as I am not going to spend time on an engine with 200K miles on it. Like I said, I have a spare, just looking for the best route. Looked at 383 strokers, 396 strokers... Not sure if I want to go that route with a daily driver. Maybe just a 355. So... the question is. Can you get my ported heads, decent headers (shorties are okay i suppose), and a cam that will bring me close to this? I know that a CAI and full exhaust are worth a decent amount of power on those engines and I will be working on setting something up there. But, like I said, I have a target, just trying to get there for a decent price.
You can achive that with the hotcam kit alone for the LT1... Go with a cc306 cam and heads (stock) ported to 196cc max lift and you will get anywhere from 355-400 depending on other mods!!

I got a set of heads ported and polished by lloyd elliott and they flow a max of 195cc and a cc306 matched. I should be looking at around 370 to the wheels with that plus my other mods. Without the pcm tune no doubt, with it I hope to hit 400:thumbsup:
Lloyd's prices are very reasonable hit me up and I'll give you his number.

[H3llphyre]

Originally posted by grygst76
You can achive that with the hotcam kit alone for the LT1... Go with a cc306 cam and heads (stock) ported to 196cc max lift and you will get anywhere from 355-400 depending on other mods!!

I got a set of heads ported and polished by lloyd elliott and they flow a max of 195cc and a cc306 matched. I should be looking at around 370 to the wheels with that plus my other mods. Without the pcm tune no doubt, with it I hope to hit 400:thumbsup:
Lloyd's prices are very reasonable hit me up and I'll give you his number.

The problem is, if I can't free up the exhaust (headers), I don't believe I will be making any real power. I just don't want to spend $1500 on a set of headers. Maybe the shorties are the answer. Better then stock, and not stupid expensive. I'm thinking that cat delete pipes are in order too... Just figure out a way to get a sticker on the car with the cats gone... Maybe I can fudge something. So... hmm... How much did you spend on the head porting if you don't mind me asking?

[grygst76]

Originally posted by H3llphyre
The problem is, if I can't free up the exhaust (headers), I don't believe I will be making any real power. I just don't want to spend $1500 on a set of headers. Maybe the shorties are the answer. Better then stock, and not stupid expensive. I'm thinking that cat delete pipes are in order too... Just figure out a way to get a sticker on the car with the cats gone... Maybe I can fudge something. So... hmm... How much did you spend on the head porting if you don't mind me asking? Well, I went all out and got the size of the valves increased/ used ferrea lightweight swirled 2.00 1.55's, new valve guides, new springs and retainers, and the port/polish on stock aluminum heads for less then (PM'd You), if you supply everything else and give him a bare casting it will be MUCH cheaper obviously!!
email him at NightTrain66@msn.com he is currently selling these right now

Ported LT1 heads for sale.

New 2.02/1.60 valves, .580 lift single springs, retainers and locks, milled .010, new seals, ALL NEW STUFF.

Flow 267/188 at .600 lift.

$900 FIRM.

If you add up . . .

$200 LT1 cores
$200 valve job, seals, milling, etc
$250-300 valves, springs, retainers, locks
-------------------
$650-700 in this stuff alone.

$900 is a good deal.

I will knock off $200 for a set of good LT1 cores on trade in.

[forcefed6]

Originally posted by FATBLOCKMARO
I AM IN NEED (VERY MUCH SO) OF A SET OF BIG BLOCK CHEVY HEADS ....I NEED ALUMINUM AND GOOD FLOWING (BLOWER MOTOR) LET ME KNOW PLEASE ....I AM NOT A STROKER IF YOU CAN SET ME UP W/ A GOOD DEAL I WILL BUY!!!! HOOK ME UP BRO!!!! i am going too make some calls too see if anyone has a set cheap for me, otherwise i will have too buy them new which isnt a bad deal. the only thing is that i get stuff for about the same as summit with my discount. ill do what i can for you though.:thumbsup:

[FATBLOCKMARO]

Originally posted by forcefed6
i am going too make some calls too see if anyone has a set cheap for me, otherwise i will have too buy them new which isnt a bad deal. the only thing is that i get stuff for about the same as summit with my discount. ill do what i can for you though.:thumbsup:


LET ME KNOW BUDDY

[forcefed6]

Originally posted by H3llphyre
Yes, I want long tube exhaust headers... I know a few companies make them, the most popular being called the "tri-Y's". They are about $1400. A little more then I was willing to pay. The summit shorties are $450, like I said, but I am not overly sure about the performance gains.

I know the cast iron heads on the b-bodies are far superior to the alum one off the f-bodies (flow wise). I wouldnt mind porting a set, I just need some sort of idea on cost. I have seen the AFR's go for about $1400, which I don't consider bad for a NEW set of heads. How much do you think a pretty extensive porting on the iron heads would cost. Getting you a set is EASY, as I have a spare motor. Of course, if I replace/port the heads, I will be looking for a cam as well. Those are easy to come by, so I am not overly worried about it. Tell you what, here is what I am looking to do.

I want to get about 300-350rwhp (without any juice) out of the LT1 in the caprice. I think I want to stick with the auto (4L60e) for now, as the T-56 swap isnt a priority. I have full plans on (re)building and engine for the car, as I am not going to spend time on an engine with 200K miles on it. Like I said, I have a spare, just looking for the best route. Looked at 383 strokers, 396 strokers... Not sure if I want to go that route with a daily driver. Maybe just a 355. So... the question is. Can you get my ported heads, decent headers (shorties are okay i suppose), and a cam that will bring me close to this? I know that a CAI and full exhaust are worth a decent amount of power on those engines and I will be working on setting something up there. But, like I said, I have a target, just trying to get there for a decent price.

ported heads are wierd on pricing. i dont have a set price for each stage because there is more work that you have too get them too flow the same as other castings. here is a basic pricing for porting though-

aluminum sbc heads - 400 for street
600 for high performance street/drag (all that you would want too run on the street)
1000 or all out race

steel sbc heads add 100

alum bbc 550 street
800 for high performance street/drag
1300 for all out race

steel bbc add 75

ford pricing is basically the same but noone wanted them so i am not gonna write it out, lol

4valve heads (import, mustang, cadillac, lt5 vette)are priced by the chamber

65 per cyllinder for street
85 for high performance street/drag
120 for all out race

all heads are decked for flatness/square, tanked, and all valve seats checked for cracks

i will cut all you guys a deal and do a 3 or 5 angle valvejob on the heads and eat the price of it. i usually charge about 200-300 bucks for it so that is a killer deal really.

intakes i can portmatch for about 100 bucks for a carb intake and about 175 for fuel injected upper/lower
all intakes are tanked and sandblasted.

as far as the headers i will look into pricing but i think that summit racing might be a better bet and you no they will have them in stock, i jsut really have a hell of a time beating there prices unless i eat shit and lose money, lol

[forcefed6]

i forgot about cams! basically i will design them for free, give you a +/- 5% guess on what your horsepower/torque will be, and sell you them for as cheap as i can. just let me no what you want for hp and what the car is for and i will get you a price/tell you what else you will need. ie. different roller lifters/springs/locks/rockers/pushrods. all that happy shit. ill check the list out later on. sorry botu last night, i had too do suspension stuff on my buddies 78 bbc camaro and i got tied up till midnight.

later,
matt

[grygst76]

Originally posted by forcefed6
ported heads are wierd on pricing. i dont have a set price for each stage because there is more work that you have too get them too flow the same as other castings. here is a basic pricing for porting though-

aluminum sbc heads - 400 for street
600 for high performance street/drag (all that you would want too run on the street)
1000 or all out race

steel sbc heads add 100

alum bbc 550 street
800 for high performance street/drag
1300 for all out race

steel bbc add 75

ford pricing is basically the same but noone wanted them so i am not gonna write it out, lol

4valve heads (import, mustang, cadillac, lt5 vette)are priced by the chamber

65 per cyllinder for street
85 for high performance street/drag
120 for all out race

all heads are decked for flatness/square, tanked, and all valve seats checked for cracks

i will cut all you guys a deal and do a 3 or 5 angle valvejob on the heads and eat the price of it. i usually charge about 200-300 bucks for it so that is a killer deal really.

intakes i can portmatch for about 100 bucks for a carb intake and about 175 for fuel injected upper/lower
all intakes are tanked and sandblasted.

as far as the headers i will look into pricing but i think that summit racing might be a better bet and you no they will have them in stock, i jsut really have a hell of a time beating there prices unless i eat shit and lose money, lol

Those prices reflect just a port job alone right??

[forcefed6]

port/deck/and tank. but i will do the valvejob for free on top of those prices. also, you need too give me the heads on some of these deals soi can port them. it would be a little more if i have too supply the heads because i will have too pay for the core heads.

[grygst76]

Originally posted by forcefed6
port/deck/and tank. but i will do the valvejob for free on top of those prices. also, you need too give me the heads on some of these deals soi can port them. it would be a little more if i have too supply the heads because i will have too pay for the core heads. no offense but that's pretty steep unless you are CNC'ing them or full machine jobs..,

[H3llphyre]

Originally posted by grygst76
Well, I went all out and got the size of the valves increased/ used ferrea lightweight swirled 2.00 1.55's, new valve guides, new springs and retainers, and the port/polish on stock aluminum heads for less then (PM'd You), if you supply everything else and give him a bare casting it will be MUCH cheaper obviously!!
email him at NightTrain66@msn.com he is currently selling these right now

Ported LT1 heads for sale.

New 2.02/1.60 valves, .580 lift single springs, retainers and locks, milled .010, new seals, ALL NEW STUFF.

Flow 267/188 at .600 lift.

$900 FIRM.

If you add up . . .

$200 LT1 cores
$200 valve job, seals, milling, etc
$250-300 valves, springs, retainers, locks
-------------------
$650-700 in this stuff alone.

$900 is a good deal.

I will knock off $200 for a set of good LT1 cores on trade in.

That doesnt seem too bad. Is the offer of a discount for a good set of heads count for the cast iron b-body heads? I know the b-body heads flow more then the f-body alum ones, they just have a much more mild cam in them. Even still, if I can get away with doing stupid mods, like a cam, air induction, and exhaust (and tuning) and look at 300ish HP to the wheels, heads may not even be a concern for me. I don't know. I am so indecisive right now, it isnt even funny. I can't get a definate answer from anyone about what I want....

[grygst76]

Originally posted by H3llphyre
That doesnt seem too bad. Is the offer of a discount for a good set of heads count for the cast iron b-body heads? I know the b-body heads flow more then the f-body alum ones, they just have a much more mild cam in them. Even still, if I can get away with doing stupid mods, like a cam, air induction, and exhaust (and tuning) and look at 300ish HP to the wheels, heads may not even be a concern for me. I don't know. I am so indecisive right now, it isnt even funny. I can't get a definate answer from anyone about what I want.... Here's one for you, stock cast iron exhaust manifolds for an LT1 flow to 450 horsepower, it's the y-pipe and the rest of the exhaust that is the restrictor and I'm confused at what "b-body" heads are??? Is your car an LT1??? If it is it's the same motor they threw in the camaro unless you have the "baby" LT1 which is not a 350 at all its a 246. This is for an LT1 right?? Do we want to move this to tech??

[TunedPort 335]

B bodies (Impala, Caprice) came with iron heads. Fbodies and Vettes came with the aluminum ones. Vettes came with 4 bolt mains.

[H3llphyre]

Originally posted by grygst76
Here's one for you, stock cast iron exhaust manifolds for an LT1 flow to 450 horsepower, it's the y-pipe and the rest of the exhaust that is the restrictor and I'm confused at what "b-body" heads are??? Is your car an LT1??? If it is it's the same motor they threw in the camaro unless you have the "baby" LT1 which is not a 350 at all its a 246. This is for an LT1 right?? Do we want to move this to tech??

First off, there is no y-pipe on the police package caprices and impalaSSes. It is a true dual setup.

Second of all, the b-bodies (caprice, impalaSS) had cast iron heads, not aluminum like the f-bodies (maro, firebird). The cast iron heads actually flow more stock then the alum heads, but the cam was made more mild for better low end torque. Trying to move a 4100lbs beast is not easy.

And yes, I do have the "350" LT1, not the baby LT1. I am not sure if the caprice uses the same exhaust manifolds as the maros. I will have to check into that.

[H3llphyre]

Originally posted by TunedPort 335
B bodies (Impala, Caprice) came with iron heads. Fbodies and Vettes came with the aluminum ones. Vettes came with 4 bolt mains.
Correct, except the vettes (grand touring package) came with the LT4 heads and intake. Slightly better flow then the cast iron heads. And yes, 4 bolt mains in the vettes. But, from what I have read, it doesnt take much (if you are rebuilding) to convert over to the 4 bolt. Well, at least it isnt rocket science.

[forcefed6]

no offense taken at all bro. these are the prices that you will pay if you go too a porting place that does good work. everything is checked and within tolerences, frechly machined, and ready too install and run. i have been selling ported heads for a while and have gotten damn good at it, so we try too be competetive with other people that do porting. i use a power feed bridgeport for all the removal of materials, then i go back in and blend everything by hand. it is very time consuming but i have never had complaints. either way, let me no:)

[H3llphyre]

Originally posted by forcefed6
no offense taken at all bro. these are the prices that you will pay if you go too a porting place that does good work. everything is checked and within tolerences, frechly machined, and ready too install and run. i have been selling ported heads for a while and have gotten damn good at it, so we try too be competetive with other people that do porting. i use a power feed bridgeport for all the removal of materials, then i go back in and blend everything by hand. it is very time consuming but i have never had complaints. either way, let me no:)

Okay then. Here is a question. Cast Iron LT1 heads, ported with matched intake port. 2.02/1.60 valves. Fully built heads. How much?

[grygst76]

Originally posted by H3llphyre
First off, there is no y-pipe on the police package caprices and impalaSSes. It is a true dual setup.

Second of all, the b-bodies (caprice, impalaSS) had cast iron heads, not aluminum like the f-bodies (maro, firebird). The cast iron heads actually flow more stock then the alum heads, but the cam was made more mild for better low end torque. Trying to move a 4100lbs beast is not easy.

And yes, I do have the "350" LT1, not the baby LT1. I am not sure if the caprice uses the same exhaust manifolds as the maros. I will have to check into that.
What year Caprice?? Yes, the iron heads outflowed the aluminum ones on the LT1, but only in 1994 and up:thumbsup: Besides, the flow difference was only slight by about a few cfm's and it all depended on the cam as well. Still, the true duals on the caprice were still small diameter tubing and hindered the flow by a small degree. I have a set of MAC headers for the dual cat 95 and ups that will fit the caprice, but minor surgery is needed on the drivers side dealing with the steering knuckle. I never implied you had the baby LT1, but since yours is an ex duty one I have no doubts it is a 350.

[grygst76]

Originally posted by H3llphyre
Okay then. Here is a question. Cast Iron LT1 heads, ported with matched intake port. 2.02/1.60 valves. Fully built heads. How much? Why not save weight and go with the aluminum ones?? You are concerned about weight with it being 4100LBs, just curious I will get you the flow numbers on stock aluminum and stock cast iron so you can see the difference
stock aluminum wieghs 19Lbs each, stock cast iron is 45Lbs each
aluminum LT1 heads flow 15% better then the L-88 heads, and the cast iron flows 20%. Aluminum ones allow you to bump the compression up without too much risk of detonation, Cast iron is limited I think to 10.1 with 91 octane any more it's 94+.

Here is a cut and paste.....

Q: How do the heads compare between the Impala SS LT1, F-Body LT1, Corvette LT1, and the Corvette LT4? A: The Corvette and F-Body LT1 heads are identical aluminum units, while the Impala version is iron. The LT4 heads are completely different. Here's how they compare on several critical areas:


Weight - Remembering that every 100 pounds gets you about a tenth in the quarter mile, the iron heads will be about 50 pounds heavier than any of the aluminum LT1 or LT4 heads.
Flow - The iron heads show a flow advantage on the intake port over the aluminum LT1 head. The LT4 heads flow better than either one, and are used with the higher flowing LT4 manifold.
Compression - The aluminum heads run 1/2 point higher compression than the iron heads. The iron headed engines use a thinner head gasket that raises the compression ration back to the aluminum head level.
Cost - Stock, the iron LT1 heads will be the cheapest, at about $400 for a used set. If you decide to use the one's that are already on the car, they are free! A used set of aluminum LT1 heads will probably run you about $600. For a new set of LT4 heads and required parts, you're looking at close to $1100. Note that if you choose to upgrade to a higher lift cam or 1.6:1 rockers, you're probably looking at $600 or so in machining with the iron heads versus nothing for the aluminum heads.
Upgradability - Getting the heads ported will be about the same for all of them, with a slight price break probably going to the aluminum heads since they are easier to machine. If you are upgrading the camshaft or rockers, the aluminum LT1 or LT4 heads may be a better choice since the iron heads will require that you have the following machining done:

Valve guides must be machined for retainer clearance
Pushrods slots must be relieved for clearance
Spring seats must be machined for larger diameter springs
Rocker stud holes must be drilled and tapped for screw-in studs
This will probably run $400-$500 for all of the parts and work needed, and does not include any performance porting yet. All of this should be OK on either set of the aluminum heads. So, if you plan to upgrade the camshaft or rockers, the aluminum heads might be a good investment for just a little bit more than machining the stock iron heads.

Heat - Iron heads can take a lot more thermal abuse than aluminum heads without warping. However, during normal running, the alluminum heads will transmit a lot more heat, which keeps it out of the block and makes more power.
Design - The aluminum LT heads have the spark plug angled towards the exhaust valve, which results in better burning of the intake charge. The LT4 heads incorporate several design changes, including better shaped intake ports, improved exhaust ports, and better injector targeting.
Valvetrain - The valves in the iron and aluminum are essentially the same. The LT4 heads have lighter valves, which give you 500- 1000 additional RPM's before valve float, 1.6:1 roller rockers, and They offer significantly stiffer seat pressure (102 lbs. vs. 85 lbs), and the same full open pressure (260 lbs), even though they are of a lower overall rate (329 lbs/in vs. 389 lbs/in). They also .125" more lift before coil bind without astronomical open pressures. They also do not need to use a dual spring or a damper (which equates to friction, heat, and wasted energy).
Also note that there are three gasket types available: iron head LT1, aluminum head LT1, and aluminum head LT4. The aluminum head gaskets are thicker than the other two to pass GM's extreme thermal testing with the aluminum head, giving up about 1/2 a point of compression over the iron head gasket. Some investigation may be necessary to determine if the iron head gasket will rust the aluminum heads, though. The LT4 piece, while still giving up 1/2 point of compression, is a top-of-the-line, bullet proof unit. This gasket is recommended if you are running a blower or nitrous.

[H3llphyre]

Originally posted by grygst76
What year Caprice?? Yes, the iron heads outflowed the aluminum ones on the LT1, but only in 1994 and up:thumbsup: Besides, the flow difference was only slight by about a few cfm's and it all depended on the cam as well. Still, the true duals on the caprice were still small diameter tubing and hindered the flow by a small degree. I have a set of MAC headers for the dual cat 95 and ups that will fit the caprice, but minor surgery is needed on the drivers side dealing with the steering knuckle. I never implied you had the baby LT1, but since yours is an ex duty one I have no doubts it is a 350.

MAC headers will fit? Hmmm... You looking to sell em? Yeah, I am not sure what the stock piping is for the exhaust. I would guess 2.25", but that is only a guess. My car is a 1995, so it is of the correct age you are thinking.

Haha, i know the cast heads only outflow by a slight degree, its just funny to say it. Either way, I don't care about the material they are made of, I just want to make some more power. I emailed AFR to see what their prices were on their 190 street heads for LT1's. We shall see what they come back with.

[H3llphyre]

Originally posted by grygst76
Why not save weight and go with the aluminum ones?? You are concerned about weight with it being 4100LBs, just curious I will get you the flow numbers on stock aluminum and stock cast iron so you can see the difference
I know weight wise it is a 100lbs difference with the pair... Silly... Like i said, i don't care about the material (lighter is better), its just that I have a set of cast iron heads for free.... so... Its easier.

[grygst76]

Originally posted by grygst76
Why not save weight and go with the aluminum ones?? You are concerned about weight with it being 4100LBs, just curious I will get you the flow numbers on stock aluminum and stock cast iron so you can see the difference
stock aluminum wieghs 19Lbs each, stock cast iron is 45Lbs each
aluminum LT1 heads flow 15% better then the L-88 heads, and the cast iron flows 20%. Aluminum ones allow you to bump the compression up without too much risk of detonation, Cast iron is limited I think to 10.1 with 91 octane any more it's 94+.

Here is a cut and paste.....

Q: How do the heads compare between the Impala SS LT1, F-Body LT1, Corvette LT1, and the Corvette LT4? A: The Corvette and F-Body LT1 heads are identical aluminum units, while the Impala version is iron. The LT4 heads are completely different. Here's how they compare on several critical areas:


Weight - Remembering that every 100 pounds gets you about a tenth in the quarter mile, the iron heads will be about 50 pounds heavier than any of the aluminum LT1 or LT4 heads.
Flow - The iron heads show a flow advantage on the intake port over the aluminum LT1 head. The LT4 heads flow better than either one, and are used with the higher flowing LT4 manifold.
Compression - The aluminum heads run 1/2 point higher compression than the iron heads. The iron headed engines use a thinner head gasket that raises the compression ration back to the aluminum head level.
Cost - Stock, the iron LT1 heads will be the cheapest, at about $400 for a used set. If you decide to use the one's that are already on the car, they are free! A used set of aluminum LT1 heads will probably run you about $600. For a new set of LT4 heads and required parts, you're looking at close to $1100. Note that if you choose to upgrade to a higher lift cam or 1.6:1 rockers, you're probably looking at $600 or so in machining with the iron heads versus nothing for the aluminum heads.
Upgradability - Getting the heads ported will be about the same for all of them, with a slight price break probably going to the aluminum heads since they are easier to machine. If you are upgrading the camshaft or rockers, the aluminum LT1 or LT4 heads may be a better choice since the iron heads will require that you have the following machining done:

Valve guides must be machined for retainer clearance
Pushrods slots must be relieved for clearance
Spring seats must be machined for larger diameter springs
Rocker stud holes must be drilled and tapped for screw-in studs
This will probably run $400-$500 for all of the parts and work needed, and does not include any performance porting yet. All of this should be OK on either set of the aluminum heads. So, if you plan to upgrade the camshaft or rockers, the aluminum heads might be a good investment for just a little bit more than machining the stock iron heads.

Heat - Iron heads can take a lot more thermal abuse than aluminum heads without warping. However, during normal running, the alluminum heads will transmit a lot more heat, which keeps it out of the block and makes more power.
Design - The aluminum LT heads have the spark plug angled towards the exhaust valve, which results in better burning of the intake charge. The LT4 heads incorporate several design changes, including better shaped intake ports, improved exhaust ports, and better injector targeting.
Valvetrain - The valves in the iron and aluminum are essentially the same. The LT4 heads have lighter valves, which give you 500- 1000 additional RPM's before valve float, 1.6:1 roller rockers, and They offer significantly stiffer seat pressure (102 lbs. vs. 85 lbs), and the same full open pressure (260 lbs), even though they are of a lower overall rate (329 lbs/in vs. 389 lbs/in). They also .125" more lift before coil bind without astronomical open pressures. They also do not need to use a dual spring or a damper (which equates to friction, heat, and wasted energy).
Also note that there are three gasket types available: iron head LT1, aluminum head LT1, and aluminum head LT4. The aluminum head gaskets are thicker than the other two to pass GM's extreme thermal testing with the aluminum head, giving up about 1/2 a point of compression over the iron head gasket. Some investigation may be necessary to determine if the iron head gasket will rust the aluminum heads, though. The LT4 piece, while still giving up 1/2 point of compression, is a top-of-the-line, bullet proof unit. This gasket is recommended if you are running a blower or nitrous.

[grygst76]

Here is a good site with info on your model car I hope it's useful to you:thumbsup:
http://www.geocities.com/rodeodrive/7473/faq.htm#engine_head
And another one

http://www.h-body.org/people/projects/building_lt1/lt1%20info.html

I do a lot of research so I always have tons of useless information!!!

[H3llphyre]

Originally posted by grygst76
I do a lot of research so I always have tons of useless information!!!

Same here... thanks for the info.

[grygst76]

You got it:thumbsup: :thumbsup:

[H3llphyre]

Originally posted by grygst76
You got it:thumbsup: :thumbsup:
Where did you buy your headers? Summit? Where did you find the info about the "modifications" to fit a b-body?

[grygst76]

Originally posted by H3llphyre
Where did you buy your headers? Summit? Where did you find the info about the "modifications" to fit a b-body?
I got mine used from a friend in uxbridge. I learned how to do it by watching someone put a set in his impala (notice how I said watched, fucker made me help afterwards!!) unfortunately it was a real pain in the ass and took half a day just for the drivers side, it was all fit and then take out, notch, put back in, take out notch, e.t.c but it did eventually fit because the drivers side tubing does not go straight down on the 95 up headers, it sort of curves up then down into the collector. Real tight fit too,

[grygst76]

The LT1 impala ss headers by SLP fit in there as well with no modifications and they are around 440

SLP's 4-into-1 Power-Flo headers for the 1994-‘96 Impala SS are guaranteed* to produce more torque and horsepower than any other header with the same tube size and application currently available. They provide power gains up to 15 horsepower depending on the application. They feature:


Legal for Street Use in ALL 50 States
409 SS (optional 304 SS) stainless steel tubing
Compatible with all factory emission equipment
Possible fuel economy improvement
3/8" thick, investment cast 304 SS flanges for better sealing and longer life
Improved 0-60 MPH and 1/4 mile performance
Performance guarantee*
Easy, bolt-on installation
Mandrel bent .055" wall thickness tubing
Limited Lifetime Warranty*
SLP offers these headers in 1-3/4" O.D. primary tube size only. They are designed to work with the factory AIR system and catalysts and require an SLP installation kit. Kit includes: Graphite coated, stainless steel crush ring header gaskets, header bolts, fire sleeving, mounting hardware, installation instructions, modified alternator bracket and lower flange gaskets. Please Note: 1994 and early 1995 Impala SS vehicles will require (1) GM part #12552898, (1) GM part #12552899 and (1) GM part #10217106 to update the A.I.R. system to later thread design.

check out this link
http://www.lmperformance.com/c/7/3.html

and this one
http://www.thunderracing.com

They are compatible with an impala right?? At least the LT1 version correct? If not let me know, I'll get a few more

[grygst76]

another one

converting a caprice to ss

http://capricess.com/webring/sites.htm

[H3llphyre]

Originally posted by grygst76
The LT1 impala ss headers by SLP fit in there as well with no modifications and they are around 440

SLP's 4-into-1 Power-Flo headers for the 1994-‘96 Impala SS are guaranteed* to produce more torque and horsepower than any other header with the same tube size and application currently available. They provide power gains up to 15 horsepower depending on the application. They feature:


Legal for Street Use in ALL 50 States
409 SS (optional 304 SS) stainless steel tubing
Compatible with all factory emission equipment
Possible fuel economy improvement
3/8" thick, investment cast 304 SS flanges for better sealing and longer life
Improved 0-60 MPH and 1/4 mile performance
Performance guarantee*
Easy, bolt-on installation
Mandrel bent .055" wall thickness tubing
Limited Lifetime Warranty*
SLP offers these headers in 1-3/4" O.D. primary tube size only. They are designed to work with the factory AIR system and catalysts and require an SLP installation kit. Kit includes: Graphite coated, stainless steel crush ring header gaskets, header bolts, fire sleeving, mounting hardware, installation instructions, modified alternator bracket and lower flange gaskets. Please Note: 1994 and early 1995 Impala SS vehicles will require (1) GM part #12552898, (1) GM part #12552899 and (1) GM part #10217106 to update the A.I.R. system to later thread design.

check out this link
http://www.lmperformance.com/c/7/3.html

and this one
http://www.thunderracing.com

They are compatible with an impala right?? At least the LT1 version correct? If not let me know, I'll get a few more

Yeah, I know about the Summit shorty headers. What I really want is a set of long tube headers. I suppose considering the amount of power I want to make, that long tubes may be overkill, but equal length tubes just seems so appealing. We all know it is better, its just a matter of "how much better". I dunno, somthing to consider I suppose.

[Paulie C.]

i know a guy who put the borlas on and showed me his dyno sheets before and after with the addition of hypertech tuning it and he got 40 at the wheels but i mean ur gonna spend top dollar on those headers