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COMP Cams 12-863-9 Oval Track Solid Roller Camshaft 263/272 Duration Chevy SBC

(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)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-863-9
11 reviews
Sale Price

$558.95

3 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 12-863-9 is a high-performance solid roller camshaft specifically designed for oval track racing applications in Chevrolet Small Block engines. This camshaft delivers aggressive performance characteristics optimized for circle track competition where sustained high RPM operation and maximum power delivery are critical.

Camshaft Specifications:

  • Advertised Duration: 263° intake / 272° exhaust
  • Valve lift and duration specs optimized for oval track racing
  • Solid roller design for maximum durability and valve control at high RPM
  • Engineered specifically for Chevrolet Small Block V8 engines (262-400 cubic inches)
  • Ideal for circle track, dirt track, and asphalt oval racing applications

COMP Cams solid roller camshafts feature precision-ground lobes on cores manufactured to strict tolerances, ensuring consistent performance and longevity under the extreme conditions of competitive racing. The solid roller design eliminates the hydraulic lifter's limitations, allowing for more aggressive lobe profiles and higher RPM operation without valve float. This camshaft is designed to work with roller lifters, pushrods, valve springs, and retainers appropriate for the increased valve train loads of solid roller operation.

Important Notes: This camshaft requires solid roller lifters (not included), upgraded valve springs, retainers, and pushrods suitable for solid roller applications. Professional installation and proper valve train setup are essential for optimal performance and engine longevity. Degree the camshaft upon installation to verify timing events.

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

291

Grind Number

291TKNR-8

Usage

Strip

Exhaust Valve Lift

0.645

Intake Valve Lift

0.648

Intake Duration at .050 Inch Lift

263

Basic Operating RPM Range

3,700-7,600

Camshaft Series

Oval Track Xtreme TK (.900" Base Circle)

Assembly Lubricant Included

No

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

Cam Type

Solid Roller

Camshaft Material

Billet Steel

AMAZON ASIN

B001NESY6Y

LOBE SEPARATION

107

Engine Family

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

Exhaust Duration at .050 inch Lift

272

Lifter Type

Solid Roller

good fast

Very good Didn't use the part yet

great website, no problems ordering, great price on product and shipping, hopefully shipping goes smoothly and i give 5 star!!!

Excellent service

Would definitely do business again

N/A

Fantastic service and fast shipping! Lowest price on the net for the CAI that I bought!<br><br>This is my new "Go To" website for parts.<br><br>Thanks!

I would def order again from them great price and fast shipping.

Good selection, lowest price. Fast shipping. Thanks again!!!

The best price found on the net for an Airtex fuel pump. Fast shipping via UPS. Received 08/09/2012<br><br>Autoplicity is now in my favorites. Order Number: <br>Ray J.

absolutely Awesome! Great Prices!

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