Australia-wide shipping on performance, 4x4 and vehicle-specific upgrades.

COMP Cams Camshaft CS Nx256H-13

SKU: CCA12-552-4

Camshafts

CCA Camshafts...

COMP Cams Camshaft CS Nx256H-13

SKU: CCA12-552-4

Camshafts

CCA Camshafts...

A$697.33
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
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

For Hydraulic Flat Tappet Lifters

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:268
Advertised Intake Duration:256
Amazon ASIN:B000P5D8GI
Assembly Lubricant Included:Yes
Basic Operating RPM Range:1,200-5,600
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:Hydraulic Flat Tappet
Cam and Lifter Kit Upgrade:CL12-552-4
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Cast Iron
Camshaft Series:Nitrous HP
Description:Nitrous HP 212/222 Hydraulic Flat Cam for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:222
Exhaust Duration at .050 inch Lift:222
Exhaust Duration:268
Exhaust Valve Lift(in):0.464
Exhaust Valve Lift:0.464
Grind Number:NX256H
Intake Duration @ .050 in.:212
Intake Duration at .050 Inch Lift:212
Intake Duration:256
Intake Valve Lift(in):0.434
Intake Valve Lift:0.434
K-Kit Upgrade:K12-552-4
Lifter Type:Hydraulic Flat Tappet
Lifters Included:No
Lobe Separation:113
Part Number:cca12-552-4
RPM Range:1000-7000
SK-Kit Upgrade:SK12-552-4
Title:Nitrous HP 212/222 Hydraulic Flat Cam for Chevrolet Small Block
Usage:Street/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
12-552-4
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
COMP Cams Nitrous HP Camshafts
Product Attributes - UPC
036584023821
Product Attributes - Cam Style
Hydraulic flat tappet
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Basic Operating RPM Range
1,200-5,600
Product Attributes - Intake Duration at 050 inch Lift
212
Product Attributes - Exhaust Duration at 050 inch Lift
222
Product Attributes - Duration at 050 inch Lift
212 int./222 exh.
Product Attributes - Advertised Intake Duration
256
Product Attributes - Advertised Exhaust Duration
268
Product Attributes - Advertised Duration
256 int./268 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.434 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.464 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.434 int./0.464 exh.
Product Attributes - Lobe Separation (degrees)
113
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Grind Number
NX256H
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca12-552-4
SFX Item ID 4118726
Supplier Item Code 4118726
Manufacturer SKU 12-552-4
Manufacturer UPC 36584023821
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