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COMP Cams 12-423-8 Xtreme Energy Hydraulic Roller Camshaft SBC - 224/230

(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 Xtreme Energy Hydraulic Roller Camshaft GM

Other options in this family: COMP Cams 08-500-8 COMP Cams 20-811-9 COMP Cams 20-810-9 COMP Cams 07-503-8 COMP Cams 12-408-8

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-423-8
12 reviews
Sale Price

$577.95

In Stock (5)

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 12-423-8 is a high-performance hydraulic roller camshaft designed specifically for Chevrolet Small Block engines. This camshaft delivers an aggressive performance profile with 224°/230° advertised duration, providing excellent mid-range to top-end power for street/strip applications.

Key Specifications:

  • Advertised Duration: 224° Intake / 230° Exhaust
  • Duration at .050": 224° Intake / 230° Exhaust
  • Valve Lift: .510" Intake / .520" Exhaust (with 1.5 rocker ratio)
  • Lobe Separation Angle: 110°
  • Hydraulic roller design for reduced friction and increased durability
  • Recommended RPM Range: 1,500-6,000 RPM
  • Ideal for engines with 9.0:1 to 10.5:1 compression ratio

Performance Characteristics:

  • Aggressive idle with noticeable lope
  • Strong mid-range torque and horsepower gains
  • Excellent throttle response for street performance
  • Works well with aftermarket intake manifolds and headers
  • Requires aftermarket torque converter for automatic transmissions

The Xtreme Energy series is engineered for enthusiasts seeking maximum performance while maintaining street manners. This camshaft is compatible with factory or aftermarket hydraulic roller lifters and requires proper valve spring setup to handle the increased lift and duration.

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

1,900-5,600

Grind Number

XR276HR

Exhaust Valve Lift

0.51

Intake Valve Lift

0.502

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL12-423-8

K-Kit Upgrade

K12-423-8

SK-Kit Upgrade

SK12-423-8

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

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

230

Cam Type

Hydraulic Roller

Advertised Exhaust Duration

282

Intake Duration at .050 Inch Lift

224

Advertised Intake Duration

276

Engine Family

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

AMAZON ASIN

B000CIUABO

Camshaft Series

Xtreme Energy

So far so good

It was good and my part arrived as promised

Easy shopping with great prices

Its plastic thought it was metal

easy to navigate through your site

excellent service

Is really good and easy to order

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.

Easy order process, Good price

I didn't get a shipping notice until three days after I got the product. It was exactly what I ordered and did arrive during the proper time frame

Great prices, helpful customer service. Ordered 2 by mistake. And they got it cleared up real fast. Saved over $80 off retail. Will be ordering from the, again!!!!! <br>

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.

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