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COMP Cams 12-300-4 High Energy Hydraulic Flat Tappet Camshaft Small Block Chevy 262-400

(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)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-300-4
10 reviews
Sale Price

$309.95

4 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 12-300-4 High Energy camshaft is a hydraulic flat tappet performance cam designed specifically for Chevrolet small block engines (262-400 cubic inches). This camshaft delivers a significant performance upgrade over stock while maintaining excellent street manners and reliability with hydraulic lifters.

Camshaft Specifications:

  • Advertised Duration: 268°/280° (Intake/Exhaust)
  • Duration at .050": 192°/200° (Intake/Exhaust)
  • Valve Lift: .420"/.442" (Intake/Exhaust) with 1.5:1 rocker ratio
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for quiet operation and easy maintenance
  • Recommended RPM Range: 1,000-5,000 RPM
  • Ideal powerband for street performance and towing applications

Performance Characteristics:

  • Produces excellent low-end and mid-range torque
  • Smooth idle quality suitable for daily driving
  • Works with stock torque converters and rear gear ratios
  • Compatible with stock valve springs and components
  • Emissions legal in most states when properly tuned

This High Energy series camshaft is an excellent choice for street vehicles, light trucks, SUVs, and motorhomes where improved throttle response and torque are desired without sacrificing driveability or fuel economy. The conservative duration and lift specifications ensure compatibility with stock cylinder heads, intake manifolds, and exhaust systems.

Application Note: Fits Chevrolet small block V8 engines including 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inch variants. Requires hydraulic flat tappet lifters (not included). Professional installation and proper break-in procedures are strongly recommended.

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

Advertised Exhaust Duration

248

Advertised Intake Duration

240

Basic Operating RPM Range

600-4,600

Grind Number

240H

Cam Type

Hydraulic Flat Tappet

Intake Valve Lift

0.39

Intake Duration at .050 Inch Lift

192

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL12-300-4

Camshaft Series

High Energy

K-Kit Upgrade

K12-300-4

SK-Kit Upgrade

SK12-300-4

C.A.R.B. Exemption Reason

C.A.R.B. EO Issued

C.A.R.B. E.O. Number

D-279-5

Usage

Street/Performance

Assembly Lubricant Included

Yes

Lifters Included

No

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?

Yes

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

LOBE SEPARATION

108

Exhaust Duration at .050 inch Lift

200

Exhaust Valve Lift

0.39

Engine Family

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

AMAZON ASIN

B000CEM516

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Great pricing and customer service. Item shipped on time and with no complicaitons. Best pricing on the internet that I could find. Great seller.

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Good customer service.Very friendly persons in service dept as well. Will shop here again.

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This is the first time I've ordered from this site, but things look good from what I can tell so far. They had the parts I was looking for (including a fairly specialized racing part) for a price slightly lower than other places I had looked, and my order shipped the next business day. At the time I wrote this, they were also offering $5 back on my order for writing a review. ;-)

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