R-Steffen 99ls1

Here's what I want
402 stroker
500+hp n/a
Probably a 2-300 nitrous shot
Street drivable
Pump gas

Here's what I have
99 trans am
Lq4 iron block
243 heads

My questions are
Is it possible to make 500 n/a with 243 heads on a 402 stroker?

If not what heads other than ls3 should I buy?

Need as much help as possible this is my first engine build.

KCS

iTrader: (20)

Yes, stock 243's have made 500whp NA on smaller engines. With the appropriate supporting modifications (good headers, FAST 102, etc) and cammed wisely, a 402 should have no problem.

KCS

iTrader: (20)

Yes, stock 243's have made 500whp NA on smaller engines. With the appropriate supporting modifications (good headers, FAST 102, etc) and cammed wisely, a 402 should have no problem.