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COMP Cams 12-408-8 Xtreme Energy Hydraulic Roller Camshaft SBC - 206/212

(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 + 240 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 20-813-9

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-408-8
10 reviews
Sale Price

$577.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 12-408-8 is a hydraulic roller camshaft designed specifically for Chevrolet Small Block engines. This camshaft delivers excellent performance across a broad RPM range, making it ideal for street/strip applications where strong mid-range torque and top-end horsepower are both priorities.

Camshaft Specifications:

  • Advertised Duration: 260°/266° (Intake/Exhaust)
  • Duration @ .050": 206°/212° (Intake/Exhaust)
  • Valve Lift: .462"/.466" (Intake/Exhaust) with 1.5:1 rocker ratio
  • Lobe Separation Angle: 114°
  • Recommended RPM Range: 1,500-5,500 RPM
  • Recommended Spring: COMP Cams #26918 or equivalent (not included)

Key Features:

  • Hydraulic roller design eliminates the need for break-in procedures required by flat tappet cams
  • Aggressive lobe profiles provide strong throttle response and acceleration
  • Computer-designed lobe profiles ensure optimal performance and durability
  • Manufactured from premium quality materials with precision grinding
  • Excellent street manners with automatic or manual transmissions

This camshaft works well with stock or mildly modified cylinder heads and requires a minimum of 9.0:1 compression ratio. Power brakes are acceptable with this cam profile. Note that hydraulic roller lifters, pushrods, timing set, and valve springs must be purchased separately and matched to your specific application.

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 + 236 more models

Grind Number

XR258HR

Intake Valve Lift

0.48

Exhaust Valve Lift

0.487

Intake Duration at .050 Inch Lift

206

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL12-408-8

K-Kit Upgrade

K12-408-8

SK-Kit Upgrade

SK12-408-8

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

Advertised Exhaust Duration

264

Cam Type

Hydraulic Roller

Basic Operating RPM Range

1,000-5,000

AMAZON ASIN

B002DFMLE8

Exhaust Duration at .050 inch Lift

212

Advertised Intake Duration

258

Engine Family

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

Camshaft Series

Xtreme Energy

Sent in a google review an got back 5 bucks

Excellent service

You save us 20 bucks thanks

Quick, easy, came with at least one product review, good description, reasonable product and shipping price. Could have better pictures, that show the whole item, lid included, as well as a picture of the back, with usage instructions, etc., so that those of us who know nothing of guns or gun products, and are getting this item as a gift for someone who does, can be sure to get a more thorough idea of what they're buying.

There were no measurements of size of what I was looking at they are slightly large but I believe I can make them work I have a retrofit small block Chevy to Toyota Land Cruiser

great experience, good price, item arrived within 4 days of purchase, would do business with again in future !

Good products, great selection, and quick purchase. Will definitely be buying again.

great doing business with you

By far the lowest price i've seen on the web for what i have been trying to get, the Injen SRI for my juke. Great price fast shipping! Ill buy all my car stuff here from now on.

Easy order placement, fast shipment

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