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COMP Cams 01-425-8 Xtreme Energy Hydraulic Roller Camshaft Chevrolet Big Block - 248/254

(Chevrolet K2500 1996-2000, Express 3500 1996-2000, C3500 1996-2000, C2500 1996-2000, K3500 1996-2000, K2500 Suburban 1996-99, P30 1996-99 + 11 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

01-425-8
6 reviews
Sale Price

$577.95

Estimated ship date Monday, November 23

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Product Details

The COMP Cams Xtreme Energy 01-425-8 hydraulic roller camshaft is engineered specifically for Chevrolet Big Block Gen VI engines, delivering aggressive performance gains with excellent street manners. This camshaft features a 248/254 duration split designed to maximize torque and horsepower across a broad RPM range.

Key Specifications:

  • Advertised Duration: 288°/294° intake/exhaust
  • Duration @ .050": 248°/254° intake/exhaust
  • Valve Lift: .510"/.540" intake/exhaust (with 1.7 rocker ratio)
  • Lobe Separation Angle: 110°
  • Hydraulic roller design for reduced friction and increased durability
  • Recommended RPM range: 2,000-6,200 RPM
  • Recommended valve spring: COMP Cams #26918 or equivalent

Performance Features:

  • Aggressive lope at idle with strong mid-range to top-end power
  • Ideal for street/strip applications and muscle car builds
  • Works well with aftermarket cylinder heads and intake manifolds
  • Requires aftermarket torque converter (2,400-3,000 stall recommended)
  • Best suited for engines with 9.5:1 to 10.5:1 compression ratio

This Xtreme Energy camshaft is part of COMP Cams' popular performance line, offering enthusiasts proven power gains and reliability. The hydraulic roller design provides the performance benefits of a roller cam while maintaining the convenience of a hydraulic lifter system. Compatible with stock or aftermarket roller lifters designed for Big Block Chevrolet applications.

Products specifications

Fits

Chevrolet K2500 1996-2000, Express 3500 1996-2000, C3500 1996-2000, C2500 1996-2000, K3500 1996-2000, K2500 Suburban 1996-99, P30 1996-99, G30 1996, C2500 Suburban 1996-99; GMC K2500 1996-2000, Savana 3500 1996-2000, C3500 1996-2000 + 6 more models

Advertised Intake Duration

300

Grind Number

XR300HR

Intake Valve Lift

0.56

Intake Duration at .050 Inch Lift

248

Basic Operating RPM Range

3,000-6400

Camshaft Material

Austempered Ductile Iron

Engine Family

Chevrolet GEN VI 454 and 502 c.i. 8 Cylinder (1996-1999)

Cam and Lifter Kit Upgrade

CL01-425-8

K-Kit Upgrade

K01-425-8

SK-Kit Upgrade

SK01-425-8

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

Cam Type

Hydraulic Roller

AMAZON ASIN

B000VTYQNM

Advertised Exhaust Duration

306

Exhaust Valve Lift

0.58

Exhaust Duration at .050 inch Lift

254

Camshaft Series

Xtreme Energy

They were Very quick and i was very happy with the service i got!! 9-10*

Easy with great prices

Ordered a CAI kit and Autoplicity had the lowest price. They're website didn't correctly match my vehicle to the product and it took a few days to ship. They're support was friendly and quick when I emailed them about the delay.

Great customer service, item shipped quickly. Very satisfied.

Great site. Provided needed technical specs. Shipped promptly. Although I had to ask for the tacking number, it was not emailed, one was provided promptly upon request.

This is the easiest purchase I ever made. The visor is great and installation was a breeze. The service by Autoplicity was A-1. Shipping was better than standard. Will buy from them again.

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