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COMP Cams 12-652-5 Oval Track Solid Flat Tappet Camshaft Chevrolet Small Block - 248/250

(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 + 222 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 12-650-5 COMP Cams 12-608-5 COMP Cams 12-645-5 COMP Cams 12-656-5

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-652-5
14 reviews
Sale Price

$325.95

In Stock (9)

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Usually delivered within 2 days

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Product Details

The COMP Cams 12-652-5 is a high-performance solid flat tappet camshaft specifically engineered for oval track racing applications in Chevrolet small block engines. This camshaft delivers aggressive performance with a 248/250 duration split designed to maximize power in circle track competition.

Key Specifications:

  • Advertised Duration: 288°/290° intake/exhaust
  • Duration @ .050": 248°/250° intake/exhaust
  • Valve Lift: .510"/.522" intake/exhaust (with 1.5:1 rocker ratio)
  • Lobe Separation Angle: 108°
  • Solid flat tappet design for racing durability
  • Recommended RPM range: 3,500-7,500

Features and Benefits:

  • Optimized grind for circle track racing with emphasis on mid-range to top-end power
  • Aggressive duration profile provides strong pulling power through the corners
  • Tight lobe separation angle increases cylinder pressure and throttle response
  • Requires aftermarket valve springs, pushrods, and racing valve train components
  • Designed for competition use with race fuel and higher compression ratios

This camshaft is intended for dedicated racing engines with proper machine work and supporting modifications. Requires periodic valve lash adjustment as with all solid lifter camshafts. Not recommended for street use due to aggressive profile and idle characteristics.

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 + 218 more models

Usage

Strip

Lifter Type

Solid Flat Tappet

Exhaust Valve Lift

0.525

Intake Valve Lift

0.531

Intake Duration at .050 Inch Lift

248

Exhaust Duration at .050 inch Lift

250

Grind Number

278XO-6

Basic Operating RPM Range

3,000-6800

Camshaft Material

Cast Iron

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

Advertised Exhaust Duration

284

LOBE SEPARATION

106

Advertised Intake Duration

278

Engine Family

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

AMAZON ASIN

B000P593KI

Great prices.

GOOD PRICES EASY PICKINS

Items were packaged very well, super fast standard shipping, price was half of local venders.

Great experience, would buy from them again.

Easy peasy

Fair prices, website was well organized.

I am happy with the product that I bought. The delivery time is shorter than expected. The only suggestion I have is to include other possible necessary parts such as bolts, nuts and gasket as recommended items. Also, correct the image for the product on the webpage.

product just as described, received in 3 days

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

Great prices will shop here again.

Excellent on-line merchant with outstanding customer service and the best prices on equipment and shipping. Highly reccomended!

Good prices and easy ordering process (order #18003). The only issue that I had was after placing the order, completing the entire process, I received three emails stating that "We noticed that you started checking out on our site, but didn't quite finish the process". After calling customer service, they ensured me that the order was complete. Since then, I receive the same email(3 emails at a time) on a daily basis. Just a little annoying, but easy enough to delete.

quick and easy

Very easy site to navigate and order from.

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