AFR Magnum Comp Cylinder Head - Assembled - 2.300 / 1.880 in Valves - 325 cc Intake - 121 cc Chamber - 1.625 in Springs - Big Block Chevy - Pair YA0863 2-Piece Seal

2-Piece Seal

to keep dirt inside tire from plugging TIRELIEF

1999-2018 Ford F-350 Super Duty

840 in Head

Oil holes have been added to allow fluid to escape the drum and permit the piston to engage quicker

AFR Magnum Comp Cylinder Head - Assembled - 2.300 / 1.880 in Valves - 325 cc Intake - 121 cc Chamber - 1.625 in Springs - Big Block Chevy - Pair YA0863 2-Piece SealAFR BB Chevy line of medium volume intake runners will provide you with exactly that. The phrase ''having your cake and eating it to'' would certainly be appropriate with their moderately sized intake runners producing tremendous flow figures across the entire lift range. These high flow high velocity ports provide extreme versatility and fill the needs of many applications. From a max effort high compression 454 605ci low rpm marine application,