Z Whip Ls Cylinder Head Dowel Alignment Pin Assembly Split Roll Pin Compatible With All Gm Chevy 1997-Current Ls & Lt Series Engines Lsx Ls1 Ls3 Ls2 Lq4 Ls6 Lq9 5.3L 6.0L 6.2L L83 L86 Lt1 Lt4 Vortec

Z Whip Set Of 4 (Enough For 1 Engine) Ls Lt Steel Cylinder Head Alignment Dowel Pins Compatible With All Gen 3,4, & 5 Chevrolet Ls And Lt Series V8 Engines 1997-2021. These Are Required When Installing The Cylinder Heads To The Engine Block. Many Times, These Are Lost Or Damaged On Disassembly.