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COMP Cams Camshaft CS 300B-R6

SKU: CCA12-908-9

Camshafts

CCA Camshafts...

COMP Cams Camshaft CS 300B-R6

SKU: CCA12-908-9

Camshafts

CCA Camshafts...

A$1,220.83
Available from MFR. In stock at 2 locations (more than 10 available)

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Description

Camshaft - Drag Race - Mechanical Roller - Lift 0.630 / 0.630 in - Duration 300 / 308 - 106 LSA - 4200 / 7200 RPM - Small Block Chevy - Each

DR 264/270 SRlr SBC

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.

Additional Information

4500+ stall, 11:1 compression, lower gears needed.

Application Summary

Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information.

Part Type

Engine Camshaft

Product Overview

Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information.

Data: v4.2 - Upd: 2026-11-07 21:25:14

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Advertised Exhaust Duration:308
Advertised Intake Duration:300
Amazon ASIN:B000CEQDGY
Assembly Lubricant Included:No
Basic Operating RPM Range:4,200-7200
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.
Cam Type:Solid Roller
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Billet Steel
Camshaft Series:Drag Race
Description:Drag Race 264/270 Solid Roller Cam for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:270
Exhaust Duration at .050 inch Lift:270
Exhaust Duration:308-6
Exhaust Valve Lift(in):0.63
Exhaust Valve Lift:0.63
Grind Number:300BR-6
Intake Duration @ .050 in.:264
Intake Duration at .050 Inch Lift:264
Intake Duration:300-5
Intake Valve Lift(in):0.630
Intake Valve Lift:0.63
Lifter Type:Solid Roller
Lifters Included:No
Part Number:cca12-908-9
RPM Range:4000-13000
Title:Drag Race 264/270 Solid Roller Cam for Chevrolet Small Block
Usage:Strip
Valve Springs Required:Yes

Product Downloads

# Document Type Download
1. Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:01:28

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU cca12-908-9
SFX Item ID 4118891
Accounting SKU cca-12-908-9
Manufacturer SKU 12-908-9
Manufacturer UPC 036584670315
Alternative References 12-908-9, CCA-12-908-9, COM12-908-9

Camshaft, Mechanical Roller Tappet, Advertised Duration 300/308, Lift .630/.630, Chevy, Small Block, Each

COMP Cams drag race camshafts are offered in four styles: hydraulic flat tappet, hydraulic roller tappet, mechanical roller tappet, and mechanical flat tappet. These cams are ideal for the performance demands of the dragstrip, as well as street, strip, Circle Track, and other applications. Over a hundred models are available; choose the camshaft designed for your vehicle and engine family.

Product Attributes
BrandCOMP Cams
Manufacturer's Part Number12-908-9
Part TypeCamshafts
Product LineCOMP Cams Drag Race Camshafts
UPC036584670315
Cam StyleSolid roller, Retro-fit
Camshaft UseDrag race
Basic Operating RPM Range4,200-7,200
Intake Duration at 050 inch Lift264
Exhaust Duration at 050 inch Lift270
Duration at 050 inch Lift264 int./270 exh.
Advertised Intake Duration300
Advertised Exhaust Duration308
Advertised Duration300 int./308 exh.
Intake Valve Lift with Factory Rocker Arm Ratio0.630 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.630 in.
Valve Lift with Factory Rocker Arm Ratio0.630 int./0.630 exh.
Intake Valve Lash0.026 in.
Exhaust Valve Lash0.028 in.
RemanufacturedNo
Computer-Controlled CompatibleNo
Grind NumberCS 300B-R6
Valve Springs RequiredYes
QuantitySold individually.
NotesRequires bronze gear, thrust button, and wear plate.

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