Loading... Please wait...Top End kit for up to 4.320"Bore Mark 4 includes AFR 305 Heads w/CNC Chamber, Straub Custom Hyd Roller, Morel Sportsman Hyd. LiftersARP Head Bolts, FelPro Head, Intake, and Exhaust Gaskets, 1 piece 3/8" Pushrods, Crane Gold Rockers