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COMP Cams Camshaft CS 305H-10

SKU: CCA12-214-4

Camshafts

CCA Camshafts...

COMP Cams Camshaft CS 305H-10

SKU: CCA12-214-4

Camshafts

CCA Camshafts...

A$698.56
Available from MFR. In stock at 1 location (2 available)

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Description

Camshaft - Magnum / Drag Race - Hydraulic Flat Tappet - Lift 0.525 / 0.525 in - Duration 305 / 305 - 110 LSA - 3000 / 7000 RPM - Small Block Chevy - Each

Mag/DR 253/253HFTSBC

Hydraulic Flat Tappet for '58-'98 262-400 c.i.d. Small Block Engines with Flat Tappet Camshaft.

Additional Information

Pro Street/bracket, limited street driving. Intake, gears, 3500+ stall. Racy idle. 10.5:1 compression.

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.

Additional Application Notes
• w/ J Engine VIN;
• Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 3500-7000rpm; Adv. Dur. 305 Int./Exh.; Valve Lift .525 Int./Exh.; Lobe Angle 110 deg.;
• w/ J Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 3500-7000rpm; Adv. Dur. 305 Int./Exh.; Valve Lift .525 Int./Exh.; Lobe Angle 110 deg.;
• w/ L Engine VIN; w/ K Engine VIN;
• w/ L Engine VIN; w/ K Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 3500-7000rpm; Adv. Dur. 305 Int./Exh.; Valve Lift .525 Int./Exh.; Lobe Angle 110 deg.;
• From 1985-1998 Chevrolet introduced the factory roller Small Block into GM cars and trucks. Verify whether or not your vehicle came with a factory roller camshaft. If your vehicle was equipped with a roller camshaft, look to our camshafts and kits that start with "08-".
• w/ L Engine VIN;
• w/ L Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 3500-7000rpm; Adv. Dur. 305 Int./Exh.; Valve Lift .525 Int./Exh.; Lobe Angle 110 deg.;
• w/ T Engine VIN;
• w/ T Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 3500-7000rpm; Adv. Dur. 305 Int./Exh.; Valve Lift .525 Int./Exh.; Lobe Angle 110 deg.;
• w/ K Engine VIN;
• w/ K Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 3500-7000rpm; Adv. Dur. 305 Int./Exh.; Valve Lift .525 Int./Exh.; Lobe Angle 110 deg.;
• w/ L Engine VIN; w/ J Engine VIN;
• w/ L Engine VIN; w/ J Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 3500-7000rpm; Adv. Dur. 305 Int./Exh.; Valve Lift .525 Int./Exh.; Lobe Angle 110 deg.;
• w/ Y Engine VIN;
• w/ Y Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 3500-7000rpm; Adv. Dur. 305 Int./Exh.; Valve Lift .525 Int./Exh.; Lobe Angle 110 deg.;
• w/ H Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 3500-7000rpm; Adv. Dur. 305 Int./Exh.; Valve Lift .525 Int./Exh.; Lobe Angle 110 deg.;
• w/ H Engine VIN;

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

Data: v4.2 - Upd: 2026-11-07 21:25:45

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:305
Advertised Intake Duration:305
Amazon ASIN:B000CEQDBO
Assembly Lubricant Included:Yes
Basic Operating RPM Range:3500-7,000
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:CL12-214-4
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Cast Iron
Camshaft Series:Magnum
Description:Magnum/Drag Race 253/253 Hydraulic Flat Cam for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:253
Exhaust Duration at .050 inch Lift:253
Exhaust Duration:305
Exhaust Valve Lift(in):0.525
Exhaust Valve Lift:0.525
Grind Number:305H-10
Intake Duration @ .050 in.:253
Intake Duration at .050 Inch Lift:253
Intake Duration:305
Intake Valve Lift(in):0.525
Intake Valve Lift:0.525
K-Kit Upgrade:K12-214-4
Lifter Type:Hydraulic Flat Tappet
Lifters Included:No
Part Number:cca12-214-4
RPM Range:3000-9000
SK-Kit Upgrade:SK12-214-4
Title:Magnum/Drag Race 253/253 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 19:00:37

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU cca12-214-4
SFX Item ID 4118598
Accounting SKU cca-12-214-4
Manufacturer SKU 12-214-4
Manufacturer UPC 036584520061
Alternative References 12-214-4, CCA-12-214-4, COM12-214-4

Camshaft, Hydraulic Flat Tappet, Advertised Duration 305/305, Lift .525/.525, Chevy, Small Block, Each

Designed for hot street/strip cars, COMP Cams Magnum series cams require a higher compression ratio, rear-end gear ratio, and stall torque converter than stock. With a very aggressive profile, these Magnum hydraulic camshafts provide maximum top-end performance for your high performance car.

Product Attributes
BrandCOMP Cams
Manufacturer's Part Number12-214-4
Part TypeCamshafts
Product LineCOMP Cams Magnum Hydraulic Camshafts
UPC036584520061
Cam StyleHydraulic flat tappet
Camshaft UseStreet/Strip
Basic Operating RPM Range3,000-7,000
Intake Duration at 050 inch Lift253
Exhaust Duration at 050 inch Lift253
Duration at 050 inch Lift253 int./253 exh.
Advertised Intake Duration305
Advertised Exhaust Duration305
Advertised Duration305 int./305 exh.
Intake Valve Lift with Factory Rocker Arm Ratio0.525 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.525 in.
Valve Lift with Factory Rocker Arm Ratio0.525 int./0.525 exh.
RemanufacturedNo
Computer-Controlled CompatibleNo
Grind NumberCS 305H-10
Valve Springs RequiredYes
QuantitySold individually.

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