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COMP Cams 12-970-9 - Camshaft CS 312R-8 .900 Base

COMP Cams  |  SKU: COMP-12-970-9
$56699 $62369
PLEASE NOTE: Pictures may be representative of style, rather than the actual product. Read the description for more details.

Description

COMP Cams 12-970-9 - Camshaft CS 312R-8 .900 Base

Camshaft - Drag Race - Mechanical Roller - Lift 0.679 / 0.645 in - Duration 312 / 325 - 108 LSA - 5000 / 7500 RPM - Small Block Chevy - Each

400+ c.i., good heads, high compression, .900" base circle.

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.

Lifters Included: No
Valve Springs Required: Yes
Assembly Lubricant Included: No
Camshaft Gear Attachment: 3-Bolt
Camshaft Material: Billet Steel
Engine Family: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Lifter Type: Solid Roller
Amazon ASIN: B001O0BTFA
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: 312R-8
Camshaft Series: Drag Race (.900" Base Circle)
Usage: Strip
Cam Type: Solid Roller
Grind Number: 312R-8
Basic Operating RPM Range: 5,000-7,500
Intake Duration at .050 Inch Lift: 279
Exhaust Duration at .050 inch Lift: 286
Advertised Intake Duration: 312
Advertised Exhaust Duration: 325
Lobe Separation: 108
Intake Valve Lift: 0.679
Exhaust Valve Lift: 0.645

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