Looking for a pontiac 455
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97jeep wrote:
ls1 swap it and bolt-ons.this is not the best site for info on stuff like this
Sure it is there is a few of us here who know what pushrods are lol.
adog wrote:
For street/strip duty, an LS series engine would perform admirably. A big block is more than likely going to be a lot cheaper for the same power, provided you don't consider gas prices. Define "tons of horsepower."A big block cheaper than a small block!!!!:icon_scratch:
No freaking way not if you're trying to get 400-500 ponies.
The 455 is a pretty potent motor but to get that kind of power you will need some aftermarket heads, intake, headers, cam, and a pretty good carb setup and big block parts are never cheap. I know on the BB ford heads you can machine them out and put bigger valves in to get the flow you need to feed that kind of power but i dont know on the 455. Edelbrock performer RPM's will run you over $800 a piece. I know for a fact that you can get the whole top end kit from edelbrock for a 350 for like $1500 and thats good to about 450 with cam and headers. If you build a stroker like a 383 you can easily push it over 500 hp, but it aint gonna be cheap to get that much out of a small block, or any engine for that matter you have to build it to handle the abuse. You gotta remeber none of these engines were ever meant to push that much power if you cross the line you can get bit in the ass pretty easily. My advise is talk to some guys who have built a couple of 455's the net is a great place for that and do your homework.
> 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 -
A regular sbc is pretty cheap, but LSX engines are considerably more expensive. This place has some good options:
http://www.sdpc2000.com/catalog/120/GM-Performance-Parts-Crate-Engines.htm
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go to ls1tech.com they will direct you in the right direction
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2JZ swap.... (Sorry, been hanging around Fallguy all day, he's started to rub off on me)
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Anybody in here who reccomends a chebby motor be put in that PONTIAC Trans Am should be slapped.
The 455 is a beast. It makes a helluva lot of torque and lots of power but you don't need to spin it up much. A 400 punched out and stroked to 462 is also a helluva combo. Bottom line is stick with the pontiac motor in that car. Its a lot easier than dicking around with putting a chevy in there (motor mounts, accessories, fitting under the shaker scoop and various other things).
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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.
> 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 -
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
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