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Xtreme Energy 4/7 Swap 250/256 Hydraulic Flat Cam Chevrolet Big Block 396-454

Xtreme Energy 4/7 Swap 250/256 Hydraulic Flat Cam Chevrolet Big Block 396-454

Xtreme Energy 4/7 Swap 244/252 Solid Flat Cam for Chevrolet Big Block 396-454

Xtreme Energy 4/7 Swap 244/252 Solid Flat Cam for Chevrolet Big Block 396-454

Xtreme Energy 4/7 Swap 236/242 Solid Flat Cam for Chevrolet Big Block 396-454

$306.95
Xtreme Energy™ 4/7 Swap 236/242 Solid Flat Cam for Chevy Big Block 396-454. Very strong mid-range torque and throttle response. 2500+ stall.
In stock
SKU
11-653-47
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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 036584096696
Manufacturer COMP Cams®
Emissions Code
Engine Family Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
RPM Operating Range 2,000-6,400
Cam Type Solid Flat Tappet
Camshaft Series Xtreme Energy 4 and 7 Swap Firing Order
Camshaft Gear Attachment 3-Bolt
Usage Street/Performance
California Proposition 65 WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration 274
Advertised Exhaust Duration 280
Intake Duration at .050 Inch Lift 236
Exhaust Duration at .050 Inch Lift 242
Intake Valve Lift 0.568
Exhaust Valve Lift 0.578
Lobe Lift Intake 0.334
Lobe Lift Exhaust 0.34
Lobe Separation 110
Intake Centerline 106
Valve Timing Lift 0.015
Exhaust Close ATDC 26
Intake Open BTDC 31
Exhaust Open BBDC 74
Intake Close ABDC 63
Lifter Style Solid Flat Tappet
11-653-47-camshaft cb 47s xe274s-10 (219.89 kB)
Recommended Components
Component Part Number
Break-In Lube 159
Valve Seals 505-16
Valve Locks 612-16
Steel Retainers 741-16
Valve Springs 924-16
Steel Retainers 732-16
Valve Springs 930-16
Distributor Gears 12200
Lifter Kit 813-16
Timing Set 2100
Timing Set 7100
Lifter Kit 2900-16
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