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COMP Cams Camshaft CB 47S 321-R12

SKU: CCA11-747-14

Camshafts

CCA Camshafts...

COMP Cams Camshaft CB 47S 321-R12

SKU: CCA11-747-14

Camshafts

CCA Camshafts...

A$1,311.31
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

BBC - 1965-66 396 c.i.d. 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.

Product Overview

Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572

Product Details

Advertised Exhaust Duration:336
Advertised Intake Duration:321
Amazon ASIN:B001NESZXQ
Assembly Lubricant Included:No
Basic Operating RPM Range:5,000-8,500
C.A.R.B. E.O. Number:N/A
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 Federally Certified Vehicles Manufactured Before 1967?: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. Exempt for Racing and Off-Road Only Vehicles?:Yes, but must be a race/competition only vehicle.
C.A.R.B. Exemption Reason:N/A
California Proposition 65:WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Cam Type:Solid Roller
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Billet Steel
Camshaft Series:Drag Race 4 and 7 Swap Firing Order
Description:Drag Race 4/7 Swap 284/296 Solid Roller Cam for Chevrolet Big Block 396-454
Engine Family:Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
Exhaust Duration @ .050 in.:296
Exhaust Duration at .050 inch Lift:296
Exhaust Duration:336
Exhaust Valve Lift(in):0.748
Exhaust Valve Lift:0.748
Grind Number:47S 321R12
Intake Duration @ .050 in.:286
Intake Duration at .050 Inch Lift:286
Intake Duration:321
Intake Valve Lift(in):0.748
Intake Valve Lift:0.748
Lifter Type:Solid Roller
Lifters Included:No
Lobe Separation:112
Part Number:cca11-747-14
RPM Range:3000-9000
Title:Drag Race 4/7 Swap 284/296 Solid Roller Cam for Chevrolet Big Block 396-454
Usage:Strip
Valve Springs Required:Yes

Application Summary

Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts

Part Type

Engine Camshaft

Data: v4.2 - Upd: 2026-10-17 02:06:53

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
11-747-14
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
COMP Cams Drag Race Camshafts
Product Attributes - UPC
036584084068
Product Attributes - Cam Style
Solid roller, Retro-fit
Product Attributes - Camshaft Use
Drag race
Product Attributes - Basic Operating RPM Range
5,000-8,500
Product Attributes - Intake Duration at 050 inch Lift
286
Product Attributes - Exhaust Duration at 050 inch Lift
296
Product Attributes - Duration at 050 inch Lift
286 int./296 exh.
Product Attributes - Advertised Intake Duration
321
Product Attributes - Advertised Exhaust Duration
336
Product Attributes - Advertised Duration
321 int./336 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.748 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.748 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.748 int./0.748 exh.
Product Attributes - Lobe Separation (degrees)
112
Product Attributes - Intake Valve Lash
0.026 in.
Product Attributes - Exhaust Valve Lash
0.028 in.
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Grind Number
47S 321-R12
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
With 18736542 firing order. Has a 4 and 7 firing order swap. Requires upgraded gear, thrust button, and wear plate.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca11-747-14
SFX Item ID 4118541
Supplier Item Code 4118541
Manufacturer SKU 11-747-14
Manufacturer UPC 36584084068
Alternative References c10, s10, COM11-747-14, 47S, 321-R12

Compatibility

Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts

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