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COMP Cams 12-246-3 Xtreme Energy Hydraulic Flat Camshaft Duration Small Block Chevy - 230/236

(GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-99, C1500 1979-86, 1988-99, K2500 1979-86, 1988-95, 1998, Jimmy 1970-91 + 259 more models)

Part of: COMP Cams Xtreme Energy Hydraulic Flat Camshaft Duration Small Block Chevy

Other options in this family: COMP Cams 12-242-2

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-246-3
8 reviews
Sale Price

$297.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 12-246-3 is a hydraulic flat tappet camshaft engineered specifically for Chevrolet small block engines seeking a significant performance upgrade. This camshaft delivers an aggressive idle sound and strong mid-range to top-end power, making it ideal for street/strip applications and performance street machines.

Camshaft Specifications:

  • Advertised Duration: 280°/286° intake/exhaust
  • Duration at .050": 230°/236° intake/exhaust
  • Valve Lift: .480"/.480" intake/exhaust (with 1.5:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for reliable street performance
  • RPM Range: 1,500-5,800 RPM
  • Requires compatible valve springs and may require piston-to-valve clearance checking

Performance Characteristics:

  • Produces a lopey, aggressive idle with noticeable vacuum drop
  • Excellent for engines with aftermarket heads, intake manifolds, and headers
  • Best suited for vehicles with 9.5:1 to 10.5:1 compression ratio
  • Recommended transmission: 2,400+ RPM stall converter for automatics or performance clutch for manuals
  • Rear gear ratio of 3.42:1 or higher recommended for optimal performance

The Xtreme Energy series features advanced lobe profiles designed to maximize airflow efficiency and power output while maintaining hydraulic reliability. This camshaft is compatible with factory fuel injection or carbureted setups and works with stock or aftermarket cylinder heads. Professional installation and proper break-in procedures are recommended to ensure longevity and optimal performance.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-99, C1500 1979-86, 1988-99, K2500 1979-86, 1988-95, 1998, Jimmy 1970-91, Savana 2500 1996-2002, Savana 1500 1996-2002, C3500 1979-86, 1988-95, K2500 Suburban 1979-86, 1992-95 + 255 more models

Basic Operating RPM Range

1,800-6,000

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.49

Intake Valve Lift

0.487

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL12-246-3

K-Kit Upgrade

K12-246-3

SK-Kit Upgrade

SK12-246-3

Usage

Street/Performance

Assembly Lubricant Included

Yes

Lifters Included

No

LOBE SEPARATION

110

Valve Springs Required

Yes

Lifter Type

Hydraulic Flat Tappet

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

274

Camshaft Gear Attachment

3-Bolt

Exhaust Duration at .050 inch Lift

236

Intake Duration at .050 Inch Lift

230

Grind Number

XE274H

Advertised Exhaust Duration

286

Engine Family

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

AMAZON ASIN

B000CIUAAA

Camshaft Series

Xtreme Energy

great, and quick thanks to the amazon login option.

This place was great. Great service they really helped mr out and were fast and extremely helpful.

Excellent shipping received very fast and well packaged

Incredibly low prices and fast shipping. I bought shocks and struts for my truck and saved more than 35% over what my local parts store wanted!!! I made the mistake of not setting up my account before placing my order so I didn't get confirmation right away, but one quick phone call fixed that. Great customer service.

Lowest price I could find. Cheap shipping for the size. Pretty happy

Very fast shipping and price is rite

Lightning fast shipping!!! I expected it to be here in 2-3 days, not the next.

I am impressed with they mail order service. Recommended.

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