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COMP Cams Nitrided Camshaft CS 290Xo-6

SKU: CCA12-658-20

Camshafts

CCA Camshafts...

COMP Cams Nitrided Camshaft CS 290Xo-6

SKU: CCA12-658-20

Camshafts

CCA Camshafts...

Sale ends in Calculating...

A$870.07 A$1,002.79
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

Exclusive Comp Cams flash sale discount at StreetFX!

Talk about timing! This is a limited offer while stocks last on various Comp Cams part numbers. There's never been a better time to buy your Comp Cams upgrades, so what are you waiting for?!

This item is currently on sale!

Same-day payment required to secure promotional price. Promotions may end early or be extended based on stock levels or other factors.

OT NIT 260/266SFTSBC

Additional Information

3/8-1/2 tight. 360+c.i., 12:1+ compression. 4 BBL with good intake and exhaust.

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: 2026-11-11 23:14:38

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:300
Advertised Intake Duration:290
Amazon ASIN:B002EDX2H4
Assembly Lubricant Included:Yes
Basic Operating RPM Range:3400-7,200
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:Nitrided Cast Iron
Camshaft Series:Xtreme Oval
Description:Oval Track NIT 260/266 Solid Flat Cam for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:266
Exhaust Duration at .050 inch Lift:266
Exhaust Duration:300
Exhaust Valve Lift(in):0.549
Exhaust Valve Lift:0.549
Grind Number:290XO-8
Intake Duration @ .050 in.:260
Intake Duration at .050 Inch Lift:260
Intake Duration:290
Intake Valve Lift(in):0.558
Intake Valve Lift:0.558
Lifter Type:Solid Flat Tappet
Lifters Included:No
Part Number:cca12-658-20
RPM Range:3400-7200
Title:Oval Track NIT 260/266 Solid Flat 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 19:01:10

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU cca12-658-20
SFX Item ID 4118779
Accounting SKU cca-12-658-20
Manufacturer SKU 12-658-20
Manufacturer UPC 036584178118
Alternative References 12-658-20, CCA-12-658-20

Camshaft, Mechanical Flat Tappet, Advertised Duration 290/300, Lift .558/.549, Chevy, Small Block, Each

Oval track racing is lots of cars, wheel-to-wheel, racing around the track at high speeds. COMP Cams Oval Track Pro-Plasma nitrided camshafts can give you the performance that you need to steer into victory lane. These cams are designed for racing applications, plus, they've been given a Pro-Plasma nitriding process to increase hardness and durability. Nitrogen is introduced into the cam's metal for improved initial and long-term wear characteristics, and increased surface lubricity through reduced friction. Pro-Plasma is a race-proven black oxide finish with superior results. Oval track racing is definitely more than just making left turns. Pick a cam that can handle the stress--COMP Cams Oval Track Pro-Plasma nitrided camshafts.

Product Attributes
BrandCOMP Cams
Manufacturer's Part Number12-658-20
Part TypeCamshafts
Product LineCOMP Cams Oval Track Pro-Plasma Nitrided Camshafts
UPC036584178118
Cam StyleSolid flat tappet
Camshaft UseDrag race
Basic Operating RPM Range3,400-7,200
Intake Duration at 050 inch Lift260
Exhaust Duration at 050 inch Lift266
Duration at 050 inch Lift260 int./266 exh.
Advertised Intake Duration290
Advertised Exhaust Duration300
Advertised Duration290 int./300 exh.
Intake Valve Lift with Factory Rocker Arm Ratio0.558 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.549 in.
Valve Lift with Factory Rocker Arm Ratio0.558 int./0.549 exh.
Intake Valve Lash0.016 in.
Exhaust Valve Lash0.018 in.
RemanufacturedNo
Computer-Controlled CompatibleNo
Grind Number290X0S
Valve Springs RequiredYes
QuantitySold individually.
NotesNitrided camshaft.

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