Looking for a pontiac 455
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capitlj wrote:
I agree with cmk i just had to comment on the big block cheaper than a small block bullshit, what was that guy thinking? Anywho the power of the big block compels you. The power of the big block compels you.
That really depends on what deals you can get.$400 for a 455 and a 400 is a damn good deal.
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bubba wrote:
I know a kid from back home with a built 455 olds in a old jacked up chevy. I havent heard him having any problems with it and he drives it everyday, it seems pretty reliable. Only thing that ever broke was one of his axles.That's an Olds 455 in place of a 5.7 deisel slapnuts.
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capitlj wrote:
I agree with cmk i just had to comment on the big block cheaper than a small block bullshit, what was that guy thinking?Pretty much that an LSX engine with wiring harness, PCM, and sufficient tweaking to produce 450-500 hp would cost more than a big block crate engine, at least if you got new parts. Also, the LS1 and LS2 were installed in the Formula/Trans Am and GTO, respectively, so putting them in a Pontiac would seem reasonable.
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The LSx does not bolt right up to a 2nd gen Firebird. Also, they were only in the 4th gen 1998-2002 models. The LSx was never installed into a 2nd gen bird.
The Pontiac motor will be the cheapest route in that car.
BTW, there is no "big block" or "small block" with the pontiac motors. They are all the same physical size.
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adog wrote:
Pretty much that an LSX engine with wiring harness, PCM, and sufficient tweaking to produce 450-500 hp would cost more than a big block crate engine, at least if you got new parts. Also, the LS1 and LS2 were installed in the Formula/Trans Am and GTO, respectively, so putting them in a Pontiac would seem reasonable.I dont think you could spend another 5 grand on bolt ons and only get 400-500 hp on an ls crate motor. The general rule of thumb for those of us in the know is that big block parts will be double the cost almost all the time.
> Mitch Hedberg wrote:
> I'm sick of following my dreams, I'm just going to find out where they are going and hook up with them later.ASE certified parts specialist.
2004 Impala LS 3.8 -
I had based my estimate on the following:
LS1 crate engine + H/C: approx $7,000 + electronics, low 400 hp range
502 cid crate engine: approx $5,800 + carburetor, ignition, 450 hpIf the existing 400 is in good shape or an economical 455 can be obtained, that would be the most affordable route.
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I was saying all along that the 455 is the better way to go just building one to make 500 hp is gonna cost roughly twice as much as putting in a 350 that makes the same power. Screw an LS motor why put all that electronic crap in a classic car like that?? Sure you can't get the same kind of turn key operation fuel injection gives you but the install is three times as complicated, plus you have sensors to maintain/replace and diagnosing a problem can be a PITA with fuel injection.
> Mitch Hedberg wrote:
> I'm sick of following my dreams, I'm just going to find out where they are going and hook up with them later.ASE certified parts specialist.
2004 Impala LS 3.8 -
Man....... you guys are getting into stuff I didn't want to know, I will be putting a <u>pontiac</u> 400 or 455 whether I bore it out or not which I probably will. I have some hookups through my dad, he knows some people in the auto business, but anyways im not that worried about price all I asked does anyone have a 455 you guys took it out of the park around the block and then some, o well also does anyone have a winter beater car for me so i can actually rip the 400 out of the car so I can get it rebuilt if no has a 455 well you guys have fun with that LS shit
1975 Trans am 455 8.99 @158mph (What now fallguy)
1987 CRSEX W/Fucking VVVVVVVVV-TEC (But is now sitting in a junk yard cuz I blew it up......Ooops!!)
2001 cr125 (Faster Than LoveMachines Bike)
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No i havent thats just what i hear from people who do as far as cold starts go. The only reason i said anything at all on this thread was because someone said a big block would be cheaper than a small block thats just plain madness.
> Mitch Hedberg wrote:
> I'm sick of following my dreams, I'm just going to find out where they are going and hook up with them later.ASE certified parts specialist.
2004 Impala LS 3.8 -
LightEmUp wrote:
Man....... you guys are getting into stuff I didn't want to know, I will be putting a <u>pontiac</u> 400 or 455 whether I bore it out or not which I probably will. I have some hookups through my dad, he knows some people in the auto business, but anyways im not that worried about price all I asked does anyone have a 455 you guys took it out of the park around the block and then some, o well also does anyone have a winter beater car for me so i can actually rip the 400 out of the car so I can get it rebuilt if no has a 455 well you guys have fun with that LS shit
Putting in a crate LS1 is going to be a hell of a lot easier to get running right than a carbed 400 or 455.But I would rather get as 455 too. Don't even bother with a 400.
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Yeah I really want to go with the 455 but it is so hard to find a pontiac 455 that is an early 70's those are the ones with the most horsepower If I end up going with the 400 it wont be so bad because i will be able to put better parts on it with the money I will be saving from not buying the 455 and I think a 455 has more expensive parts, but most parts are able to go on either what ever I do it will be sweet and it will definately be mean as hell
1975 Trans am 455 8.99 @158mph (What now fallguy)
1987 CRSEX W/Fucking VVVVVVVVV-TEC (But is now sitting in a junk yard cuz I blew it up......Ooops!!)
2001 cr125 (Faster Than LoveMachines Bike) -
MisterCMK wrote:
You can get a 455 block out of any pontiac. Throw an aftermarket set of heads on there, bore it and stroke it and you're easily over 500hp.
QFT.The only reason the older ones have more power is because of the exhaust, carb and cam. If you plan on swapping that out anyways, might as well pick up any 455 you can.
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MisterCMK wrote:
You can get a 455 block out of any pontiac. Throw an aftermarket set of heads on there, bore it and stroke it and you're easily over 500hp.
Not quite guy you gotta have a good carb to feed all those cubes and some headers to manage the flow. Plus a good set of aftermarket heads are well over $800 per side. If possible work the stock heads most BB heads can have bigger valves stuffed in then do the engine work should save you a solid $500 but it wont be cheap, and you'll have to do your homework. Best way to do that is to ask guys who have already done it.
> Mitch Hedberg wrote:
> I'm sick of following my dreams, I'm just going to find out where they are going and hook up with them later.ASE certified parts specialist.
2004 Impala LS 3.8 -
The stock q-jet is good up to 500 or so hp. The Ram Air IV manifolds are just as good as a set of headers. I forget which casting it is, but the stock Pontiac heads with a little porting and polishing are exactly what aftermarket heads are designed after.
Come back when you learn something about the pontiac motors.
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