wag7079

I am building a 346 ls1 for boost 16-18psi, maybe spray 100-150 later on. I know the crank will be fine but what rods and pistons(dome,flat top -cc?) would be adequate. I am using ls6 heads, and a blower cam from tsp, but would I benefit from buying a fast 90 or doing any additions work to the heads with boost?

Thanks Everyone, Alex

ddnspider

iTrader: (26)

fast 90/90 dont waste your money.if you can get the heads ported for a good price have at it.

wag7079

what about ls6 intake? im just curious if there is any benfit from upgrading intake size?

ddnspider

iTrader: (26)

ls6,sure maybe,but not necessary.alot do an ls2 intake with a 90mm throttlebody for a cheap alternative

Jefro6996

iTrader: (21)

If your going to upgrade the intake swap out to a carb style intake ported to match the heads. It would be ideal for your blower/turbo setup.