COMP Cams 26925-16 1.320" O.D. Dual Valve Spring Set .650" Max Lift for GM Chevrolet GEN III IV EnginesCOMP Cams 1. 320 inches outside diameter, . 680 inches inside diameter dual valve spring 141 pounds 1. 810 inches seat load and 405 pounds 1. 150 inches open load capacity . 650 inch maximum lift

050: 209/215

They are heat-treated prior to thread rolling and machining

GM Duramax LB7 6

luxurious-quality

4L 327 EX FI & SPECIAL High PERF

and can handle much higher RPM than the factory ones

Require no additives or supplements for maximum protection

enhance valve train stability & improve oiling

Lobe Separation: 112

gov Advertised Intake Duration 273 Advertised Exhaust Duration 277 Intake Duration at

1967-94 (with 5/8" inlet hole)

Lighter than aluminum w/ lower heat soak propensity & greater strength over stock molded intake