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COMP Cams 12-420-8 Magnum 215/215 Hydraulic Roller Camshaft for Chevy Small Block

(GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1970-91 + 238 more models)

Part of: COMP Cams Magnum Hydraulic Roller Camshaft Small Block Chevy

Other options in this family: COMP Cams 12-470-8 COMP Cams 08-430-8 COMP Cams 12-430-8 COMP Cams 12-450-8 COMP Cams 08-450-8

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-420-8
13 reviews
Sale Price

$577.95

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The COMP Cams 12-420-8 Magnum hydraulic roller camshaft delivers excellent street performance for Chevrolet small block engines. This camshaft features a 215/215 duration profile at .050" lift, providing a balanced combination of low-end torque and mid-range power that's ideal for daily drivers and street performance applications.

Key Features:

  • Hydraulic roller design for reduced friction and improved efficiency
  • 215/215 duration @ .050" provides smooth idle and broad power band
  • Engineered specifically for Chevrolet small block V8 engines
  • Magnum series design optimized for street performance
  • Compatible with stock to mildly modified engines
  • Requires hydraulic roller lifters and compatible valvetrain components

This camshaft is an excellent choice for enthusiasts seeking improved throttle response and horsepower gains without sacrificing driveability. The hydraulic roller design reduces valvetrain wear while maintaining consistent valve control across the RPM range. Professional installation and proper valvetrain setup are recommended for optimal performance.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1970-91, C3500 1979-86, 1988-95, K2500 Suburban 1979-86, 1992-95, K3500 1979-86, 1988-95, C15/C1500 Pickup 1967-74 + 234 more models

Basic Operating RPM Range

1,800-5,000

Grind Number

270HR

Exhaust Duration at .050 inch Lift

215

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL12-420-8

K-Kit Upgrade

K12-420-8

Camshaft Series

Magnum

SK-Kit Upgrade

SK12-420-8

Assembly Lubricant Included

No

Lifters Included

No

LOBE SEPARATION

110

Valve Springs Required

Yes

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

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. 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.

Advertised Intake Duration

270

Camshaft Gear Attachment

3-Bolt

Exhaust Valve Lift

0.5

Lifter Type

Hydraulic Roller

Advertised Exhaust Duration

270

Cam Type

Hydraulic Roller

AMAZON ASIN

B001O09NDU

Intake Valve Lift

0.5

Usage

Street/Strip

Intake Duration at .050 Inch Lift

215

Engine Family

Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)

Pretty easy

Easy

It was good

Great

Correct item fit perfectly

Great prices and service.

Quick and great prices

Best price around. Great Communication. Fast shipping. What else can I ask for?<br>I have already purchased again from them.

I am very glad that my order came in on time and in great condition!

Great Pricing (lowest i can find anywhere) and Quick Shipping, Product has no damage from shipping! Thank you Autoplicity!

I received my ARP head studs as described and on time with zero problems, and cheaper than anywhere else.Will use again!!!

We ordered a cover for a pickup truck bed and were so pleased that it was shipped so quickly. The price was the lowest that we found on the internet or in any of the stores where we looked. We were notified by e-mail as soon as it shipped. We will definitely shop this site again.

First time buyer from Autoplicity and found the website easy to navigate and find what I wanted quickly. They had the best price of all the other sites I checked, including shipping.

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