2000 firbird questions

[juggalo4life]

I bought a 2000 firebird, i want to put a different engine in it. i want to put a chevy 454 bigblock in it but i am afraid it wont fit. does anyone know if that size engine will fit in my car or am i better going with a small block

[Mines69Olds]

What does it have in it right now? It might be kind of hard to find a 454 from one of those SS454 pickups. But it would probably be to big unless you did heavy modification. I think a nice performance 350 would do pretty well. If you really want to you could get the 350 buy a mild cam, build the heads maybe some bigger injectors, bigger throttle body, headers going to a nice dual exhaust, you could also put a nice rearend in it. But if you don't want to do that just buy a nice vette motor.

[tuske427]

Anything can be made to fit. It all comes down to money and time. How much do you have and how much are you willing to spend? At what point will it be worth it or not to you to have this done?

You will be money ahead having an LS1 engine bored and stroked and installing that. they fit just fine. LPaces liek D'agostino have the abilty to get big block cubes out of these engines.

Then, when your'e done you have a car that still has the same lightweight aluminum small block (better weight bias, handling and overall less weight), and is easier to work around since it takes less space. Not to mention parts wil lbe easier to find.

If you're insistent on the big block 4th gen, check out the 572 cid Z-28 built in the mid 90's by GM performance (one of their subdivisions). You could look through old Hot Rods or do a search online. they shoved a big block into a camaro and made it look production stock.

[Mr. Luos]

My 1999 Firebird is getting a smallblock 402ci. LSx based.

Big block would be VERY expensive to wedge into a 4th gen.