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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.

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Description

N2O 212/222 HFT SBC

For Hydraulic Flat Tappet Lifters

Additional Information

Works well in near stock engines with up to 125 hp nitrous kits.

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 21:25:18

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:268
Advertised Intake Duration:256
Amazon ASIN:B000P5D8GI
Assembly Lubricant Included:Yes
Basic Operating RPM Range:1,200-5,600
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: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
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

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 19:01:00

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU cca12-552-4
SFX Item ID 4118726
Accounting SKU cca-12-552-4
Manufacturer SKU 12-552-4
Manufacturer UPC 036584023821
Alternative References 12-552-4, CCA-12-552-4

Camshaft, Hydraulic Flat Tappet, Advertised Duration 256/268, Lift .434/.464, Chevy, Small Block, Each

COMP Cams Nitrous HP camshafts are designed to work with your nitrous system to get more power from your engine. Their unique intake lobes allow your engine cylinders to fill better, for more complete combustion. Meanwhile, their exhaust lobes are spread to decrease overlap and ensure maximum scavenging of your combustion chamber. The bottom line is an increased power boost from your nitrous system, without any loss of throttle response or torque in street applications.

Product Attributes
BrandCOMP Cams
Manufacturer's Part Number12-552-4
Part TypeCamshafts
Product LineCOMP Cams Nitrous HP Camshafts
UPC036584023821
Cam StyleHydraulic flat tappet
Camshaft UseStreet/Strip
Basic Operating RPM Range1,200-5,600
Intake Duration at 050 inch Lift212
Exhaust Duration at 050 inch Lift222
Duration at 050 inch Lift212 int./222 exh.
Advertised Intake Duration256
Advertised Exhaust Duration268
Advertised Duration256 int./268 exh.
Intake Valve Lift with Factory Rocker Arm Ratio0.434 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.464 in.
Valve Lift with Factory Rocker Arm Ratio0.434 int./0.464 exh.
RemanufacturedNo
Computer-Controlled CompatibleNo
Grind NumberNX256H
Valve Springs RequiredYes
QuantitySold individually.

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