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COMP Cams 12-520-5 Low Lift Oval Track Hydraulic Flat Tappet Camshaft for Chevy Small Block

(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 + 255 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-520-5
4 reviews
Sale Price

$325.95

Estimated ship date Friday, November 27

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Product Details

The COMP Cams 12-520-5 is a specialized hydraulic flat tappet camshaft engineered for circle track racing applications with strict 0.400-inch lift rule restrictions. This low lift oval track camshaft is designed specifically for Chevrolet Small Block engines (262-400 cubic inches) and delivers maximum power within regulatory limits.

Key Specifications:

  • Camshaft Type: Hydraulic flat tappet
  • Advertised Duration: 300° intake / 306° exhaust
  • Duration at 0.050-inch Lift: 247° intake / 255° exhaust
  • Valve Lift with 1.5 Ratio Rockers: 0.399-inch intake / 0.399-inch exhaust
  • Lobe Separation Angle: 106°
  • Operating RPM Range: 3,000-6,000 RPM

Performance Characteristics:

  • Optimized duration and lobe separation angles maximize power from limited valve lift
  • Produces rough idle with low vacuum (under 10 inches)
  • Delivers strong torque and power throughout the RPM range
  • Designed to go the distance in endurance racing conditions

This camshaft is ideal for circle track racers competing in classes with 0.400-inch or 0.450-inch lift restrictions. The aggressive profile provides excellent power while maintaining compliance with technical regulations. Compatible with Chevrolet Small Block V8 engines including 265, 283, 302, 305, 307, 327, 350, 383, and 400 cubic inch variants.

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 + 251 more models

Advertised Intake Duration

300

Basic Operating RPM Range

3,000-6,000

Usage

Strip

Cam Type

Hydraulic Flat Tappet

Intake Valve Lift

0.399

Grind Number

22/12 H-6

Intake Duration at .050 Inch Lift

247

Exhaust Duration at .050 inch Lift

255

Camshaft Material

Cast Iron

Camshaft Series

Low Lift Oval Track

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?

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

LOBE SEPARATION

106

AMAZON ASIN

B001O05ZK0

Advertised Exhaust Duration

306

Exhaust Valve Lift

0.399

Engine Family

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

This is the first time I ordered from Autoplicity. Very good experience overall. The prices are the best I can find anywhere online. It was shipped very quickly, and I received my item just in time before my trip. Thanks!

Good price

Absolute lowest retail price and lightning fast shipping. What more can you ask?

Great selection of parts and great responses to orders through e mail

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