Comp Cams 12-769-8 - Comp Cams 'Xtreme Energy' Mechanical Roller Camshafts
Comp Cams #249-12-769-8Xtreme Energy XR280R Mechanical Roller Camshaft OnlyLift: .552''/.564'' Duration: 268°/274° RPM Range: 2000-6000 |
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Comp Cams 12-769-8 - Comp Cams 'Xtreme Energy' Mechanical Roller Camshafts Details
Chevy 262-400ci Small Block 1955-98
Part Number 12-769-8 Engine 1955-1998 Chevrolet
262ci-400ci
8cyl. Grind Number CS XR268 R-10 Description
Intake Exhaust Valve Adjustment 0.016 0.018 Gross Valve Lift 0.552 0.564 Duration At 0.015 Tappet Lift 268 274
Valve Timing At 0.015 Open Close Intake 28 60 Exhaust 71 23
These Specs Are For The Cam Installed At 106 Intake CL Intake Exhaust Duration At 0.05 230 236 Lobe Lift 0.368 0.376 Lobe Separation 110
Recommended Valve Springs 249-977-16
The Leading Edge of Valve Train Technology Comp Cams Xtreme Energy series camshafts can be used in any street or street/strip application where both throttle response and top-end horsepower is desired. These cams are designed to take advantage of the latest improvements in valve train components and the newest developments in camshaft design. Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration @ .050'' lift, while delivering increased engine vacuum. We do not recommend the use of stock valve train components with these camshafts due to the aggressive lobe designs..
Camshaft & Lifter Kits are indicated by a CL in their part number and include Camshaft and Lifters.
Complete Kits are indicated by a K in their part number and include Camshaft, Lifters, Timing Chain & Gears, Valve Springs, Spring Retainers, Spring Locks and Valve Springs.
Small Kits are indicated by a SK in their part number and include Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions.
