Rollmaster CS1135 LS1 Single-Roller Non-Adjustable Timing SetGM LS1 Billet Roller Timing Set w Torr. Brg Timing Chain Set Red Series Single Roller Keyway Adjustable Needle Bearing Billet Steel GM LS Series Timing Chain Style: Single roller Maximum Advance Retard at Camshaft: 8 degree Maximum Advance Retard at Crankshaft: 8 degree Cam Gear Included: Yes Cam Gear Material: Steel Crank Gear Included: Yes Crank Gear Material: Steel Thrust Bearing Included: Yes Notes: Fits LS1 engines without front camshaft sensor