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COMP Cams Camshaft CS 305 H6

SKU: CCA12-327-5

Camshafts

CCA Camshafts

COMP Cams Camshaft CS 305 H6

SKU: CCA12-327-5

Camshafts

CCA Camshafts

Sale ends in Calculating...

A$722.36 A$805.55
Limited Availability from MFR Limited stock available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical orders of this part. This item is not held in our own warehouse, and availability and release timing may vary depending on manufacturer stock movements and processing at the time of ordering.
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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:305
Advertised Intake Duration:305
Amazon ASIN:B000P5B71Q
Assembly Lubricant Included:Yes
Basic Operating RPM Range:3,500-6,500
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
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Cast Iron
Camshaft Series:Oval Track
Description:Drag Race/Oval Track 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:305-2
Exhaust Valve Lift(in):0.525
Exhaust Valve Lift:0.525
Grind Number:305H-6
Intake Duration @ .050 in.:253
Intake Duration at .050 Inch Lift:253
Intake Duration:305-2
Intake Valve Lift(in):0.525
Intake Valve Lift:0.525
Lifter Type:Hydraulic Flat Tappet
Lifters Included:No
Lobe Separation:106
Part Number:cca12-327-5
RPM Range:3000-9000
Title:Drag Race/Oval Track 253/253 Hydraulic Flat Cam for Chevrolet Small Block
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: 2026-09-27 16:39:05

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
12-327-5
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
COMP Cams Drag Race Camshafts
Product Attributes - UPC
036584640325
Product Attributes - Cam Style
Hydraulic flat tappet
Product Attributes - Camshaft Use
Drag race
Product Attributes - Basic Operating RPM Range
3,500-6,500
Product Attributes - Intake Duration at 050 inch Lift
253
Product Attributes - Exhaust Duration at 050 inch Lift
253
Product Attributes - Duration at 050 inch Lift
253 int./253 exh.
Product Attributes - Advertised Intake Duration
305
Product Attributes - Advertised Exhaust Duration
305
Product Attributes - Advertised Duration
305 int./305 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.525 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.525 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.525 int./0.525 exh.
Product Attributes - Lobe Separation (degrees)
106
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Grind Number
CS 305 H6
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca12-327-5
SFX Item ID 4118644
Supplier Item Code 4118644
Manufacturer SKU 12-327-5
Manufacturer UPC 36584640325
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.

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