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COMP Cams 12-676-4 Xtreme Energy Solid Flat Tappet Camshaft for Chevy Small Block - 230/236

(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 + 244 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 23-232-4 COMP Cams 12-674-4 COMP Cams 23-233-4 COMP Cams 23-230-4

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-676-4
6 reviews
Sale Price

$309.95

In Stock (6)

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 12-676-4 is a high-performance solid flat tappet camshaft designed specifically for Chevrolet small block engines. This cam delivers aggressive performance characteristics with 230° intake duration and 236° exhaust duration at 0.050" lift, making it ideal for street/strip applications and performance street builds.

Key Specifications:

  • Intake Duration: 230° @ 0.050"
  • Exhaust Duration: 236° @ 0.050"
  • Advertised Duration: 280° intake / 286° exhaust
  • Valve Lift: 0.480" intake / 0.488" exhaust (with 1.5 rocker ratio)
  • Lobe Separation Angle: 110°
  • Solid flat tappet design for maximum durability and performance

Performance Characteristics:

  • Produces strong mid-range to top-end power
  • Choppy idle with aggressive sound
  • Power range: 1,800-6,200 RPM
  • Requires higher stall converter (2,400-2,800 RPM) and 3.73:1 or higher rear gears
  • Compatible with aftermarket cylinder heads and intake manifolds

The Xtreme Energy series features advanced lobe design that maximizes airflow and power output while maintaining reliable valve train operation. This camshaft requires proper break-in procedure with appropriate cam assembly lube and break-in oil. Valve spring upgrade is required for safe operation.

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 + 241 more models

Basic Operating RPM Range

1,600-6,000

Grind Number

XS268S

Lifter Type

Solid Flat Tappet

Exhaust Valve Lift

0.501

Intake Valve Lift

0.488

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL12-676-4

K-Kit Upgrade

K12-676-4

SK-Kit Upgrade

SK12-676-4

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.

Advertised Intake Duration

268

Camshaft Gear Attachment

3-Bolt

Exhaust Duration at .050 inch Lift

236

Intake Duration at .050 Inch Lift

230

Advertised Exhaust Duration

274

AMAZON ASIN

B001NN6YF8

Engine Family

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

Camshaft Series

Xtreme Energy

very easy to look up ,find item I was looking for !just wish I could of used my paypal account ,maybe next time !!! also according to information this part is supposed to fit !! Thanks

Great prices. Fast Shipping. I would definitely do business again.

User-friendly website. Thanks!

I ordered online with autoplicity via google checkout. It was easy and a real good price compared to other sites. The communication was great every step of the way. Order confirmation, order tracking number and shipping number. Super fast shipping for a heavy item (springs)and was in perfect condition. I Will shop with them again.

Hands down the best price on the Magnaflow catback I have seen by more than 20%. They were able to work out the ship-from-manufacturer tracking after a quick phone call. Will definately be recommending these guys to others.

awesome price and super fast shipping. I will use again. Thanks

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