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COMP Cams Camshaft CS 47S XS274S-10

SKU: CCA12-663-47

Camshafts

CCA Camshafts...

COMP Cams Camshaft CS 47S XS274S-10

SKU: CCA12-663-47

Camshafts

CCA Camshafts...

A$780.45
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

XE47 236/242 SFT 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.

Additional Information

Very strong mid-range, torque and throttle response. 2200+stall.

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 21:25:16

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:280
Advertised Intake Duration:274
Amazon ASIN:B001G7GU5U
Assembly Lubricant Included:Yes
Basic Operating RPM Range:2,000-6,400
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 Flat Tappet
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Cast Iron
Camshaft Series:Xtreme Energy 4 and 7 Swap Firing Order
Description:Xtreme Energy 4/7 Swap 236/242 Solid Flat Cam for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:242
Exhaust Duration at .050 inch Lift:242
Exhaust Duration:280
Exhaust Valve Lift(in):0.51
Exhaust Valve Lift:0.51
Grind Number:XE274S
Intake Duration @ .050 in.:236
Intake Duration at .050 Inch Lift:236
Intake Duration:274
Intake Valve Lift(in):0.501
Intake Valve Lift:0.501
Lifter Type:Solid Flat Tappet
Lifters Included:No
Part Number:cca12-663-47
RPM Range:2000-9000
Title:Xtreme Energy 4/7 Swap 236/242 Solid Flat Cam for Chevrolet Small Block
Usage:Street/Performance
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 19:01:11

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU cca12-663-47
SFX Item ID 4118787
Accounting SKU cca-12-663-47
Manufacturer SKU 12-663-47
Manufacturer UPC 036584096665
Alternative References 12-663-47, CCA-12-663-47

Camshaft, Mechanical Flat Tappet, Advertised Duration 274/280, Lift .501/.510, Chevy, Small Block, Each

Smart engine builders understand the benefits of a 4&7 firing order swap camshaft, which exchanges the 4 and 7 camshaft lobe timing in small and big block Chevy engines. While some builders have realized significant horsepower gains, all of them experience the exceptionally smooth torque curve possible with this new firing order technology. Dyno, Spintron, and track-tested, these camshafts do not require any engine block, ignition, or valvetrain modifications and can be custom-ground to the engine builder's exact specifications. Regardless of the cam specs that you require, these camshafts are engineered to achieve the maximum power possible using advanced lobe designs.

Product Attributes
BrandCOMP Cams
Manufacturer's Part Number12-663-47
Part TypeCamshafts
Product LineCOMP Cams Xtreme Energy 4&7 Swap Camshafts
UPC036584096665
Cam StyleSolid flat tappet
Camshaft UseStreet/Strip
Camshaft Manufacturers DescriptionVery strong mid-range torque and throttle response. 2200+ stall.
Basic Operating RPM Range2,000-6,400
Intake Duration at 050 inch Lift236
Exhaust Duration at 050 inch Lift242
Duration at 050 inch Lift236 int./242 exh.
Advertised Intake Duration274
Advertised Exhaust Duration280
Advertised Duration274 int./280 exh.
Intake Valve Lift with Factory Rocker Arm Ratio0.501 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.510 in.
Valve Lift with Factory Rocker Arm Ratio0.501 int./0.510 exh.
Camshaft Gear Attachment3-bolt
Intake Valve Lash0.016 in.
Exhaust Valve Lash0.016 in.
RemanufacturedNo
Computer-Controlled CompatibleNo
Grind NumberXE274S
Valve Springs RequiredYes
QuantitySold individually.
NotesHas a 4 and 7 firing order swap. Firing order is 18736542.

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