GM Performance Aluminum LS7 7.0L Bare Block Part# 19213580

GM Performance 7.0L LS7 Corvette aluminum engine blocks are direct replacements for the 2006-07 Chevrolet Corvette 7.0L engine. They are manufactured from 319-T5 aluminum alloy with pressed-in sleeves, a production oiling system, and 6-bolt dowel-located steel main bearing caps. The Chevrolet Performance 7.0L LS7 Corvette aluminum engine blocks feature a 4.125 in. finished cylinder bore that will accept any LS series cylinder head. Siamesed cylinder bores eliminate any heat issues and allow for larger bore diameters. Whether you are rebuilding the engine from your Corvette or starting from scratch, these Chevrolet Performance 7.0L LS7 Corvette aluminum engine blocks are the perfect foundation for your vehicle.