Chevy GM LS3 Double Roller 9 Keyway Billet Steel Timing Chain Kit Speedmaster Twin-Carb combine two four-barrel

Speedmaster Twin-Carb combine two four-barrel carburetors to achieve the best balance of drivability

you will need housing ends to complete your project

CNC-machined from high-tensile billet steel for strength and precision

Pop-Off plates are designed to release the high pressure that builds up inside of the engine to prevent damaging or cracking your supercharger components

Chevy GM LS3 Double Roller 9 Keyway Billet Steel Timing Chain Kit Speedmaster Twin-Carb combine two four-barrelSpeedmaster 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.