quick question guys

i have a 1998 z28, if i were to get a hold of some ls6 heads along with a ls6 came, would i have 400 horsepower? would i bassically have a ls6/zo6 engine if i did that?

 

i apologize if this question was asked a million times

again if i swapped my 241 heads with some 243's and a ls1 cam to a ls6, would i achieve 400 hp

 

I dont see that happenning. I have the same thing as you do. I have put on LT headers, LS6 intake, Did some exhuast work and am ready to do a spring and cam swap, and with that I doubt I will be over 400.

Someone can correct me but I believe the LS6 intake is good for 12-18 hp, LT headers are good for 10-15 at best

Heads are a good start but may only net you 25 if nothing else is done. Now a cam, intake, head swap, and headers will get you there or darn close.

 

I think it's plausable. Fly wheel yes, rear wheels no.

 

RedZ_02 is right on, fly wheel I believe so.

 

With your car being a 98 you will also need a ls6 intake manifold. If you do this swap be sure to buy the 02+ ls6 cam. The 01 ls6 motor was rated a 385. The 02 used a larger cam. But yes if you get a ls6 intake, heads, cam you will have 405.

 

at the crank...

 

Thats what I was saying. Thats why I did not put 405rwhp

 

I thought the ls6 had higher compression as well. Wouldnt that prevent him from hitting 405hp?

 

The LS6's increased compression ratio comes from the 243 heads having a smaller combustion chamber. 64 cc versus 67cc for the LS1