GM Performance 19435108 LS3 6.2L Crate Engine - 495 HPCrate Engine LS3 6. 2L 495 HP Long Block Crate Engine 376 Cubic Inch 495 HP LS3 GM LS Series LS376 480 Long Block LS long blocks from Chevrolet Performance offer the core capabilities of complete crate engines at a low cost, allowing builders to finish the assembly their way. The LS376 480 long block is delivered without the intake manifold, coil packs, water pump, exhaust manifolds or other accessories. TECH SPECS Part Number: 19420384 19432424