Big Block Chevy 781 heads (see description for more info) 781 Big Block Heads
big block 496 stroker #fortheboys #car #donk #cutlass442 #chevy #musclecar #burnout #racing #cutlass 496 BBC with CPM ported 781 iron port heads and intake. Custom solid roller cam, 10.2:1 compression, dynoed on 91 octane BP HOW TO MAKE BBC POWER. PEANUT PORT VS ALUMINUM HEADS. DO CHEAP ALUMINUM BBC HEADS WORK? From high rise to low rise, square bore and spread bore, this one is all about which intake will give you the most bang for your ...