For Chevy LS-Series Engine 1997-Up. Not for use with AFM/DOD. Camshaft RPM Range: 2200 to 5400 RPM. Camshaft Advertised Intake Duration: 283°.
Camshaft Advertised Exhaust Duration: 286°. Camshaft Cam Gear Attachment: 3-Bolt. Number of Springs Per Valve: Single. Outside Diameter of Outer Spring (in): 1.290 in.
Spring Coil Bind Height (in): 1.140 in. Spring Install Height: 1.800. Spring Open Height: 1.175. Spring Open Load: 318 lbs. Spring Rate (lbs/in): 313 lbs.
Inside Diameter of Outer Spring (in): 0.885 in. Also fit Factory Roller 93-97 LT1, and 305-350 Chevy Engines.Camshaft + Valve Lifter + Push Rod: Camshaft + Screw Set + Spacer Set with 16 Valve Lifters and 16 Valve Lifters+16 putters.