Chevy GM LS3 Double Roller 9 Keyway Billet Steel Timing Chain Kit They feature

They feature

professional touch

the IAC valves adjust the airflow to improve motor idling

You cannot over-shift and miss a gear with Speedmaster automatic shifter

Chevy GM LS3 Double Roller 9 Keyway Billet Steel Timing Chain Kit They featureSpeedmaster single Keyway Double Row Timing Chain Kits are CNC Machined from billet, Engineered for accurate, consistent timing, faster acceleration and top speed performance. Trust Speedmaster to give you timing sets that will deliver accurate, reliable cam timing. Our billet steel true roller timing sets have rugged double row, true roller chains teamed up with billet steel crank and cam sprockets.