casarothe

i have a few questions, first i have been coming to this thread for a while only to realized i never made a account lol at me, ok i have bought a 2000 firebird v6, i am wanting to put a L33 with an Ls7 head, hooker headers and a ram air conversion, im wanting to know about how much horsepower im going to have, i got the engine for 300$ and im lookin for a t56, another ? i have is will the t56 bolt right up to the L33,

6.0Nova?

LS7 heads won't fit on a 5.3. The bore on a 5.3 is too small to clear the huge LS7 valves.

A T56 will bolt right up.

There's no way of telling how much HP you'll have without more info. What cam? What intake? Gonna raise the compression?

claytonisbob

iTrader: (1)

L33 should have come with 799 (same as LS2/6 243's) heads correct? If so I'd stick with those if you're planning on using GM heads. LS7 heads wont even come close, as won't L92/LS3 heads (due to the valve size). The 799's (again, same as 243's) are the best cathedral port GM heads your going to find, without obviously going aftermarket. The T56 *should* bolt up, but it comes down to the output flange. What year is the engine out of? $300 is a good deal for an L33.

HP all depends on what heads/cam/intake you use. You are going to be at a slight disadvantage though to an 5.7 LS1/6. Look at what others are doing in the GEN3 engine forum.