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COMP Cams 12-674-4 Xtreme Energy Solid Flat Tappet Camshaft - 218/224

(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)

Part of: COMP Cams Xtreme Energy Solid Flat Tappet Camshaft Chrysler

Other options in this family: COMP Cams 12-677-4 COMP Cams 12-676-4 COMP Cams 23-232-4 COMP Cams 23-233-4 COMP Cams 23-230-4

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-674-4
4 reviews
Sale Price

$309.95

4 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 12-674-4 camshaft delivers serious performance upgrades for Chevrolet small block engines without sacrificing street driveability. This solid flat tappet cam features a 218/224 duration profile specifically engineered to maximize torque and horsepower gains while maintaining adequate vacuum for power brakes and other vacuum-dependent accessories.

Key Features:

  • Quicker valve opening profile provides increased throttle responsiveness and more area under the lift curve compared to older cam grinds
  • 218/224 duration split optimized for solid flat tappet applications
  • Maintains adequate vacuum for power brakes and accessories—ideal for street/performance builds
  • Delivers measurable gains in torque and horsepower across the RPM range
  • Excellent for carbureted applications; performs best with aftermarket intake manifolds, headers, and free-flowing exhaust
  • Recommended with lower gear ratios for optimal performance

The Xtreme Energy cam family is designed for enthusiasts who want to increase engine performance while retaining the creature comforts and driveability needed for regular street use. This cam works particularly well in street/strip applications where reliable power and daily driver functionality are both priorities.

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

Basic Operating RPM Range

1,000-5,600

Grind Number

XS256S

Lifter Type

Solid Flat Tappet

Intake Valve Lift

0.465

Exhaust Valve Lift

0.477

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL12-674-4

K-Kit Upgrade

K12-674-4

SK-Kit Upgrade

SK12-674-4

Cam Type

Solid Flat Tappet

Usage

Street/Performance

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

262

AMAZON ASIN

B000P5G6DA

Advertised Intake Duration

256

Exhaust Duration at .050 inch Lift

224

Intake Duration at .050 Inch Lift

218

Engine Family

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

Camshaft Series

Xtreme Energy

THANKS SO FOR GOOD PRICE

By far the lowest price i've seen on the web for what i have been trying to get, the Injen SRI for my juke. Great price fast shipping! Ill buy all my car stuff here from now on.

Easy order placement, fast shipment

The shipping was fast, although I couldn't get it the first day because they require signature for delivery. I guess it's an added safety measure. Thank you! Will shop buy from again!

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