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COMP Cams 12-659-5 Oval Track 264/270 Solid Flat Tappet Camshaft for Chevy 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 + 240 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 12-645-5

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-659-5
5 reviews
Sale Price

$325.95

1 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 12-659-5 is a high-performance solid flat tappet camshaft specifically designed for oval track racing applications in Chevrolet small block engines. This camshaft features aggressive duration specs of 264 degrees intake and 270 degrees exhaust, optimized to deliver strong mid-range to upper RPM power for competitive racing.

Key Specifications:

  • Duration at .050": 264° Intake / 270° Exhaust
  • Valve lift: .510" Intake / .520" Exhaust (with 1.5 rocker ratio)
  • Lobe separation angle: 108 degrees
  • Solid flat tappet design for maximum durability and adjustability
  • Optimized for 2500-6800 RPM operating range
  • Designed for oval track and circle track racing applications

Features and Benefits:

  • Split-duration design with longer exhaust duration helps scavenge exhaust gases in high-RPM racing conditions
  • Aggressive profile delivers strong acceleration out of corners
  • Tight lobe separation angle produces excellent torque characteristics for oval track racing
  • Solid lifter design allows for precise valve adjustment and eliminates lifter pump-up at high RPM
  • Compatible with stock or aftermarket valve springs (verify spring pressures and installed heights)
  • Requires solid/mechanical lifters, hardened pushrods, and adjustable rocker arms

This camshaft is ideal for dedicated oval track race engines running on gasoline with 9.5:1 to 11:1 compression ratios. Professional installation and proper break-in procedures are required for solid flat tappet camshafts.

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

Advertised Exhaust Duration

304

Advertised Intake Duration

294

Basic Operating RPM Range

3,500-7,400

Grind Number

294XOS

Lifter Type

Solid Flat Tappet

Intake Valve Lift

0.567

Camshaft Material

Cast Iron

Usage

Circle Track

Cam Type

Solid Flat Tappet

Camshaft Series

Xtreme Oval

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

B001G7EWIC

LOBE SEPARATION

106

Engine Family

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

Exhaust Valve Lift

0.555

Exhaust Duration at .050 inch Lift

270

Intake Duration at .050 Inch Lift

264

Super easy to order, but not easiest to search site. So far, 5/5, will update upon tracking/arrival/packing materials.

I have to shave the pipe.Dont fit right

Quick, easy pay, great price!

Quick shipping when it shipped out. Just as described and a great battery. Would buy from again.

I ordered a water pump from them and that Amazon was advertising as a Chrome pump. When I discovered it was not chrome, I asked to cancel the order which was prior to shipping notification. I was told by customer service it had already been sent and I would have to wait until the item was sent for a return to be processed. The return was sent back and all money was credited to my account as promised.

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