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Magnum Marine/Drag Race 256/266 Solid Flat Cam for Chevrolet Big Block 396-454


SOLID: Drag Race: Use in 396-427 c.i., heavy car, 3500+ stall, & 10.5:1+ Compression, Marine: Excellent for jet boat A or B impeller. 427-454 c.i. 10:1 compression.

In stock

BBC - 1965-66 396 c.i. models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models, so if you require a camshaft with the oiling groove, please call us at 1-800-999-0853 or click here to contact us, and we will assist you with placing an order.

More Information
UPC 036584540304
Manufacturer COMP Cams®
Emissions Code
Engine Family Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
RPM Operating Range 3,500-6,500
Cam Type Solid Flat Tappet
Camshaft Series Magnum Marine
Camshaft Gear Attachment 3-Bolt
Usage Marine
California Proposition 65 WARNING: Cancer and Reproductive Harm
Advertised Intake Duration 294
Advertised Exhaust Duration 304
Intake Duration at .050 Inch Lift 256
Exhaust Duration at .050 Inch Lift 266
Intake Valve Lift 0.58
Exhaust Valve Lift 0.605
Lobe Lift Intake 0.343
Lobe Lift Exhaust 0.358
Lobe Separation 108
Intake Centerline 108
Valve Timing Lift 0.02
Exhaust Close ATDC 44
Intake Open BTDC 39
Exhaust Open BBDC 80
Intake Close ABDC 75
Lifter Style Solid Flat Tappet