COMP Cams Hi-Tech Roller Race Timing Set For GM LS Gen IV

When you're building or upgrading a GM LS Gen IV engine for street performance or racing, getting the camshaft timing dialed in is crucial. This Hi-Tech Roller Race Timing Set from COMP Cams is designed to give you the adjustability you need to optimize your engine's powerband.

This set features a 9-keyway crankshaft sprocket, allowing you to adjust the camshaft timing up to 8 degrees either advanced or retarded in 2-degree increments. This level of fine-tuning is a significant upgrade over stock timing sets and lets you tailor the engine's response to your specific build. The set includes a single, full roller timing chain, which reduces friction and wear compared to stock components. Both the camshaft gear and the crankshaft sprocket are well-built for durability, with the crank sprocket being induction hardened for extra toughness. COMP Cams also pre-stretches and heat-treats the chain to prevent further stretching, which is key to maintaining accurate timing and preventing potential engine damage.

This timing set is ideal for non-VVT LS applications and is designed to clear the factory front cover, making installation more straightforward. While it's ready for street performance right out of the box, adding a compatible roller chain, like the separately available 9303, can make it race-ready.