Looking for a pontiac 455

[KA-T_240]

ls1 swap it and bolt-ons.

this is not the best site for info on stuff like this

[91nbtsi]

Just buy an LS-7 crate engine and be done with it;)

[94NDTA]

F-that. Carbed 455 > LSX. You have much more potential with big block heads.

[adog]

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."

[torbs]

I have an old olds. 455 with turbo 400 trans. from a LONG ASS time ago sitting at a family friends farm...$400 for both?

[LightEmUp]

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."
I want this to be a 400-500 hp engine after headers, cam, crank, and anyother mods I put on it, I dont want to put a LS series engine in it I want this car to have an older engine not something new

[LightEmUp]

torbs wrote:
I have an old olds. 455 with turbo 400 trans. from a LONG ASS time ago sitting at a family friends farm...$400 for both?
I just had my tranny rebuilt it would hook up to that engine would you consider just selling the engine, also what year is the engine code and what is the casting number on the heads

[stirno]

dude.. for $400 it cant hurt to have an extra tranny lyin around. heh.. especially any of the Turbo-series transmissions

[capitlj]

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.

[KA-T_240]

capitlj wrote:
Sure it is there is a few of us here who know what pushrods are lol.

ya i know what one is too. but i was reffering that there a much better sources to get info on stuff like this then fargostreet

[adog]

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

[JoKeR]

go to ls1tech.com they will direct you in the right direction

[bubba]

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.

[Guest]

2JZ swap.... (Sorry, been hanging around Fallguy all day, he's started to rub off on me)

[MisterCMK]

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).

[capitlj]

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.

[94NDTA]

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.

[weshole]

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.

[adog]

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.

[MisterCMK]

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.