My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams 12-225-4 Magnum 260/260 Solid Flat Tappet 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 + 242 more models)

Manufacturer

Part Number

12-225-4
Sale Price

$309.95

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams Magnum 12-225-4 is a solid flat tappet camshaft designed for Chevrolet small block engines seeking substantial performance gains without excessive valvetrain stress. This 260/260 duration camshaft is an excellent choice for street/strip applications where reliability and power delivery matter.

Key Features:

  • 260° advertised duration on intake and exhaust
  • Solid flat tappet design for consistent, reliable performance
  • Optimized for engines with 9.5:1 or higher static compression ratio
  • Delivers strong high-RPM power while maintaining valvetrain durability
  • Works best with aftermarket higher stall torque converter
  • Compatible with mild ratio rocker arms and performance valve springs
  • Ideal for bleeding off compression in high-compression builds

Part of COMP Cams' proven Magnum series, this camshaft provides the perfect balance between aggressive performance and component longevity. The solid flat tappet design ensures precise valve timing and eliminates the maintenance concerns associated with hydraulic lifters, making it an excellent choice for performance enthusiasts who demand both power and reliability.

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 + 239 more models

Advertised Intake Duration

306

Grind Number

306S

Lifter Type

Solid Flat Tappet

Intake Valve Lift

0.555

Exhaust Duration at .050 inch Lift

260

Intake Duration at .050 Inch Lift

260

Basic Operating RPM Range

3,000-7000

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL12-225-4

K-Kit Upgrade

K12-225-4

Camshaft Series

Magnum

SK-Kit Upgrade

SK12-225-4

Cam Type

Solid Flat Tappet

Assembly Lubricant Included

Yes

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.

Camshaft Gear Attachment

3-Bolt

Advertised Exhaust Duration

306

Usage

Street/Strip

Engine Family

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

Exhaust Valve Lift

0.555

AMAZON ASIN

B000CEQDCI

Ordered a sling to store my roof rack. There was an issue with the supplier which was quickly resolved by the Autoplicity staff. Great customer service -- most responsive I've ever seen.<br><br>Best prices around.

Super easy to browse web site and find the product I wanted.<br>The price was unmatched.<br>Shipping was fast and cheap.<br>Super shopping experience.

The product was just what I was looking for! Appreciate the fast shipping.

Rather amazing and uneventful service in this day and age. Ordered a Thule bike rack for my Nissan Murano. It was in stock (unusual for high-end specialty products), shipped the next day, and was on my doorstep in a few days (excellent for a 60 lb. large box). I'd buy anything from these people without any reservation. AND, your order is insured - completely superfluous. Oh, and did I mention, the lowest price I could find ANYWHERE, and not by a few dollars - a lot.

Excellent service with the actual stock on hand, shipment was made the next day and a tracking number was provided. I have tried 2 other online supply stores which don't know what they have in stock.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy