Engine, Short Block - New Hi-Perf

NAPA Ironclad Pricing Includes Prepaid Freight & Core Return from Servicing DC in the Contiguous 48 States. Performance Short Blocks hand built with premium parts, fully machined & measured for precision & balance Seasoned 5.3L/LM7 GM 6-bolt main Cast iron block, K1 forged 4340 crank 4.00 in. Internally balanced 24 tooth relutor wheel SCAT 4340 forged I-beam 6.125 in. rods with ARP 8740 bolts, Wiseco Forged 2618 +3 Flat top with coated skirts Cam bearings Installed & clocked to OEM position, brass freeze plugs installed & sealed This short block is built for all motor builds with higher compression that may require race gas. Your engine may not necessarily come with all components listed, but they are listed as our recommendations of parts to run for optimal performance. SCAT 4340 forged I-beam 6.125 in. rods with ARP 8740 bolts, Wiseco Forged 2618 +3 Flat top with coated skirts