Street. Track. Everything between.
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

COMP Cams Nitrided Camshaft CS284Mhqs7

SKU: CCA12-527-20

Camshafts

CCA Camshafts...

COMP Cams Nitrided Camshaft CS284Mhqs7

SKU: CCA12-527-20

Camshafts

CCA Camshafts...

A$959.87
Last Available from MFR. LAST ONE AVAILABLE from the manufacturer's distribution centre. Once sold, this item may not be immediately available again. The dispatch timeframe shown is an estimate based on historical orders for this part and is dependent on the manufacturer releasing the final available unit.
View cart 0
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Open Wheel Modified Traction Control NIT 258/264 Solid Flat Cam for SBC

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.

Product Details

Advertised Exhaust Duration:293
Advertised Intake Duration:284
Amazon ASIN:B002EE2CTM
Assembly Lubricant Included:Yes
Basic Operating RPM Range:3,300-7,300
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 Flat Tappet
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Nitrided Cast Iron
Camshaft Series:Open Wheel Modified Traction Control (1.6 Rocker Ratio)
Description:Open Wheel Modified Traction Control NIT 258/264 Solid Flact Cam for SBC
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:264
Exhaust Duration at .050 inch Lift:264
Exhaust Duration:293
Exhaust Valve Lift(in):0.606
Exhaust Valve Lift:0.606
Grind Number:284MHQ S7
Intake Duration @ .050 in.:258
Intake Duration at .050 Inch Lift:258
Intake Duration:284
Intake Valve Lift(in):0.597
Intake Valve Lift:0.597
Lifter Type:Solid Flat Tappet
Lifters Included:No
Lobe Separation:107
Part Number:cca12-527-20
RPM Range:3200-7200
Title:Open Wheel Modified Traction Control NIT 258/264 Solid Flact Cam for SBC
Usage:Strip
Valve Springs Required:Yes

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

Data: v4.2 - Upd: 2026-10-13 17:49:23

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
12-527-20
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
COMP Cams Open Wheel Modified Traction Control Camshafts
Product Attributes - UPC
036584177982
Product Attributes - Cam Style
Solid flat tappet
Product Attributes - Camshaft Use
Drag race
Product Attributes - Basic Operating RPM Range
3,300-7,300
Product Attributes - Intake Duration at 050 inch Lift
258
Product Attributes - Exhaust Duration at 050 inch Lift
264
Product Attributes - Duration at 050 inch Lift
258 int./264 exh.
Product Attributes - Advertised Intake Duration
284
Product Attributes - Advertised Exhaust Duration
293
Product Attributes - Advertised Duration
284 int./293 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.597 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.606 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.597 int./0.606 exh.
Product Attributes - Lobe Separation (degrees)
107
Product Attributes - Camshaft Gear Attachment
3-bolt
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Grind Number
284MHQ S7
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca12-527-20
SFX Item ID 4118724
Supplier Item Code 4118724
Manufacturer SKU 12-527-20
Manufacturer UPC 36584177982
Alternative References l46, l48, l65, lm1, lt-1, l82

Compatibility

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.

Loading compatibility information...

Keep shopping

More from Comp Cams