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COMP Cams 12-906-9 - Camshaft CS 312A-R7

COMP Cams 12-906-9 - Camshaft CS 312A-R7

COMP Cams | 12-906-9
SKU: COMP-12-906-9
$590.99 USD
$650.09 USD $590.99 USD
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4 in stock

DISCLAIMER: This Item Is Special Ordered, which may have cancellation or return restrictions. Please see our terms and conditions for more information.

COMP Cams 12-906-9 - Camshaft CS 312A-R7

Camshaft - Drag Race - Mechanical Roller - Lift 0.630 / 0.630 in - Duration 312 / 322 - 107 LSA - 4500 / 7500 RPM - Small Block Chevy - Each

Excellent for 12:1 compression, 358 with open carb. Sustained high RPM on long track. 5000+ stall, 11:1+ compression.

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 contact us, and we will assist you with placing an order. WARNING: Camshaft Optimized for use with a Melanized or Nitrided distributor Gear. Not compatible with cast or Steel Gears without similar surface treatments. Failure to utilize the proper distributor Gear will void all warranties and/or return policies.

Cam Type: Solid Roller
Grind Number: 312AR-7
Basic Operating RPM Range: 4,500-7500
Intake Duration at .050 Inch Lift: 276
Exhaust Duration at .050 inch Lift: 284
Advertised Intake Duration: 312
Advertised Exhaust Duration: 322
Lobe Separation: 107
Intake Valve Lift: 0.63
Exhaust Valve Lift: 0.63
Lifters Included: No
Valve Springs Required: Yes
Assembly Lubricant Included: No
Camshaft Gear Attachment: 3-Bolt
Camshaft Material: Billet Steel
Lifter Type: Solid Roller
Engine Family: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Amazon ASIN: B000V9CVAM
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?: Yes, but must be a race/competition only vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?: Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?: No
C.A.R.B. Exemption Reason: N/A
C.A.R.B. E.O. Number: N/A
Grind Number: 312AR-7
Camshaft Series: Oval Track
Usage: Strip
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