My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams 12-772-8 Xtreme Energy Solid Roller Camshaft Small Block Chevy - 248/254

(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 + 239 more models)

Part of: COMP Cams Xtreme Energy Solid Roller Camshaft Small Block Chevy

Other options in this family: COMP Cams 12-771-8 COMP Cams 12-773-8

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-772-8
4 reviews
Sale Price

$577.95

In Stock (10+)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
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 Xtreme Energy 12-772-8 solid roller camshaft delivers a 248/254 duration profile engineered specifically for Chevrolet small block engines seeking enhanced performance without sacrificing street manners. This advanced camshaft design features a quicker valve opening characteristic that provides increased throttle responsiveness and generates more area under the lift curve compared to older, slower-ramping cam profiles.

Key Features:

  • 248/254 duration solid roller design for small block Chevrolet engines
  • Xtreme Energy profile with accelerated valve opening for improved responsiveness
  • Optimized lift curve generates significant gains in torque and horsepower
  • Maintains adequate manifold vacuum for power brakes and vacuum-dependent accessories
  • Excellent balance of performance and streetability for daily-driven vehicles
  • Compatible with both carbureted and fuel-injected applications

This camshaft works exceptionally well in carbureted setups but achieves optimal performance when paired with aftermarket intake manifolds, performance headers, free-flowing exhaust systems, and lower gear ratios. The Xtreme Energy grind family is designed for enthusiasts who demand measurable power increases while retaining the driveability and comfort features necessary for street use.

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 + 235 more models

Advertised Exhaust Duration

292

Advertised Intake Duration

286

Grind Number

XR286R

Intake Valve Lift

0.576

Exhaust Valve Lift

0.582

Intake Duration at .050 Inch Lift

248

Basic Operating RPM Range

3,000-7000

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL12-772-8

K-Kit Upgrade

K12-772-8

SK-Kit Upgrade

SK12-772-8

Usage

Street/Performance

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.

Camshaft Gear Attachment

3-Bolt

Cam Type

Solid Roller

Engine Family

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

Exhaust Duration at .050 inch Lift

254

Lifter Type

Solid Roller

AMAZON ASIN

B000CIUAE6

Camshaft Series

Xtreme Energy

Placed order on Sunday and received shipment on Thursday. Haven't installed items yet but boxes are in good shape. I'm satisfied with the transaction.

Was a great price and in stock. Hope I get it fast for the cruizin' coming up soon.If so I will be hooked

good price, prompt delivery. no complaints.

With money being tight, we have to do whatever we can to save a few dollars here and there. Autoplicity ended up having the absolute lowest shipped price on the item I needed, and it arrived sooner than I had anticipated! There is not much else they sell that I would need, but for others who need Magnaflow exhaust parts, I am recommending they check Autoplicity for a good price.

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