I need help choosing the correct size \ brand of heads for 540 setup. Here's what I have so far:
- Gen VI (9.8 block)
- Callies 4.25 crank
- JE 4.500 dished pistons \ 6.385 rods
- Crane 741 cam \ gold rockers
Will be running 5 lbs boost.
Desired Max RPM 5500-5600

I'm looking at AFR 315 cc flow, but not sure if I
should go with 325 or 335cc? (Or different head
altogether) What are your thoughts?

Email sent

TTT

Have almost same as far as engines goes,only with bigger cams and also intercoolers and went thru the same dicisions. Before you decide check out Profiler Heads..You might like what they have to offer!!
Hopes this help a little!
Regards,
eliminator219

Don't waste your money on aluminum heads. (Especially in salt water) With a blower you will never see a difference. Buy Merlin 325cc or 345cc heads. Install inconnel exhaust valves, severe duty intake valves, 10 degree locks & retainers, Isky 8005 springs, 150lb seat, 425 open, and go. Use the GM head gasket. It seals better than any other gasket for a blower with moderate boost.

Good luck, Make sure you check your plugs before too many wide open passes.

315 AFR will work the best. Canfields 310cc is also a good choice.

Chris