Comp Cams 12-970-9 - Comp Cams 'Drag Race' Mechanical Roller Camshafts
Comp Cams #249-12-970-9Bracket Race - Small Base Circle, .900''Drag Race 312R-8 Mechanical Roller Camshaft Only Lift: .679''/.645'' Duration: 312°/325° RPM Range: 5000-7500 |
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Comp Cams 12-970-9 - Comp Cams 'Drag Race' Mechanical Roller Camshafts Details
Chevy 262-400ci Small Block 1955-98
*Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.
**Note: Requires upgraded gear, thrust button & wear plate.
400+ ci, good cylinder heads, high compression, .900'' base circle for stroker clearances.
Operating Range: 5000-7500 RPM Duration Advertised: 312° Intake / 325° Exhaust Duration @ .050'' Lift: 279° Intake / 286° Exhaust Valve Lift w/1.5 Rockers: .679'' Intake / .645'' Exhaust Valve Setting: .024'' Intake / .026'' Exhaust Lobe Separation Angle: 108°
Roller Cam For On Demand Power Camshafts specifically designed for use in all ''Super'' catagory cars, especially those equipped with throttle stops. These powerful Comp Cams offer crisp, immediate throttle response and excellent repeatability, plus are relatively easy on valve train parts.
Small Kits are indicated by a SK in their part number and include Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions.
