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COMP Cams 12-645-5 Oval Track 260/260 Solid Flat Tappet Camshaft for Chevrolet Small Block

(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 + 238 more models)

Part of: COMP Cams Oval Track Solid Flat Tappet Camshaft Chevy Small Block

Other options in this family: COMP Cams 12-610-5 COMP Cams 12-652-5 COMP Cams 12-650-5 COMP Cams 12-608-5 COMP Cams 12-656-5

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-645-5
7 reviews
Sale Price

$325.95

3 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 12-645-5 is a high-performance oval track camshaft designed specifically for Chevrolet small block engines competing in circle track racing. This solid flat tappet camshaft features symmetrical 260/260 duration specifications, delivering strong mid-range torque and excellent horsepower for sustained high-RPM oval track operation.

Key Specifications:

  • Advertised Duration: 260°/260° (intake/exhaust)
  • Camshaft Type: Solid flat tappet
  • Application: Oval track racing
  • Engine Compatibility: Chevrolet small block V8
  • Symmetrical lobe profile for balanced performance

Performance Features:

  • Optimized for sustained high-RPM oval track operation
  • Delivers strong mid-range torque for corner exit acceleration
  • Solid lifter design ensures valvetrain stability at high engine speeds
  • Purpose-built for competitive circle track racing applications

This camshaft is designed for racing use and requires proper valvetrain components including solid/mechanical lifters, performance valve springs, and pushrods. Professional installation and proper break-in procedures are essential for optimal performance and longevity.

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 + 234 more models

Advertised Intake Duration

295

Grind Number

295B-6

Usage

Strip

Lifter Type

Solid Flat Tappet

Intake Valve Lift

0.555

Exhaust Duration at .050 inch Lift

260

Intake Duration at .050 Inch Lift

260

Basic Operating RPM Range

4,000-7100

Camshaft Material

Cast Iron

Camshaft Series

Oval Track

Cam Type

Solid Flat Tappet

Assembly Lubricant Included

Yes

Lifters Included

No

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

AMAZON ASIN

B0014F35PW

LOBE SEPARATION

106

Advertised Exhaust Duration

295

Engine Family

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

Exhaust Valve Lift

0.555

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