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Drag Race 4/7 Swap 255/266 Solid Flat Cam for Chevrolet Small Block

Drag Race 4/7 Swap 255/266 Solid Flat Cam for Chevrolet Small Block

Oval Track 4/7 Swap 248/250 Solid Flat Cam for Chevrolet Small Block

Oval Track 4/7 Swap 248/250 Solid Flat Cam for Chevrolet Small Block

Drag Race 4/7 Swap 266/274 Solid Flat Cam for Chevrolet Small Block

$295.95

SOLID-350-400, 12:1 compression, 4800-5000 stall.

Availability: In stock
SKU
12-687-47
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SBC - 1955-57 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 036584084136
Manufacturer COMP Cams®
Emissions Code
Engine Family Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
RPM Operating Range 4,500-7500
Cam Type Solid Flat Tappet
Camshaft Series Drag Race 4 and 7 Swap Firing Order
Camshaft Gear Attachment 3-Bolt
Usage Strip
California Proposition 65 WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration 296
Advertised Exhaust Duration 304
Intake Duration at .050 Inch Lift 266
Exhaust Duration at .050 Inch Lift 274
Intake Valve Lift 0.57
Exhaust Valve Lift 0.59
Lobe Lift Intake 0.38
Lobe Lift Exhaust 0.393
Lobe Separation 106
Intake Centerline 106
Valve Timing Lift 0.02
Exhaust Close ATDC 46
Intake Open BTDC 42
Exhaust Open BBDC 78
Intake Close ABDC 74
Lifter Style Solid Flat Tappet
12-687-47-camshaft cs 47s 296tls-6 (219.89 kB)
Recommended Components
Component Part Number
Break-In Lube 159
Distributor Gears 12200
Valve Seals 503-16
Valve Locks 611-16
Steel Retainers 740-16
Steel Retainers 730-16
Valve Springs 950-16
Lifter Kit 800-16
Lifter Kit 813-16
Timing Set 3100
Timing Set 3100KT
Valve Springs 978-16
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