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COMP Cams 12-107-3 Factory Muscle Solid Flat Tappet Camshaft Chevrolet Small Block - 254/254

(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)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-107-3
6 reviews
Sale Price

$297.95

In Stock (10+)

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Product Details

The COMP Cams Factory Muscle 12-107-3 is a solid flat tappet camshaft designed specifically for Chevrolet Small Block engines seeking aggressive street performance with a classic muscle car sound. This camshaft features 254/254 degrees of advertised duration on both intake and exhaust, delivering a potent combination of mid-range torque and top-end horsepower that's ideal for street/strip applications.

Key Specifications:

  • Advertised Duration: 254° Intake / 254° Exhaust
  • Duration @ .050": 212° Intake / 212° Exhaust
  • Valve Lift: .447" Intake / .447" Exhaust (with 1.5:1 rocker ratio)
  • Lobe Separation Angle: 112°
  • Camshaft Type: Solid Flat Tappet
  • RPM Range: 1,800-5,800 RPM

Performance Features:

  • Factory Muscle series profile optimized for street performance with weekend racing capability
  • Aggressive idle with noticeable lope characteristic of classic muscle cars
  • Requires aftermarket torque converter (2,200-2,600 stall recommended for automatic transmissions)
  • Designed for use with 9.5:1 to 10.5:1 compression ratio engines
  • Compatible with factory or aftermarket cylinder heads
  • Requires solid lifters, pushrods, and springs (sold separately)

This camshaft provides excellent throttle response and strong acceleration throughout the powerband, making it perfect for street rods, muscle car restorations, and weekend warriors. The symmetric duration design simplifies tuning while delivering reliable performance. Professional installation and proper break-in procedure 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 + 234 more models

Advertised Exhaust Duration

346

Advertised Intake Duration

346

Grind Number

346S

Lifter Type

Solid Flat Tappet

Intake Valve Lift

0.485

Basic Operating RPM Range

2,800-6800

Intake Duration at .050 Inch Lift

254

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL12-107-3

Camshaft Series

Factory Muscle

Cam Type

Solid Flat Tappet

Usage

OEM

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

LOBE SEPARATION

114

AMAZON ASIN

B000V9AYA6

Exhaust Valve Lift

0.485

Engine Family

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

Exhaust Duration at .050 inch Lift

254

Good comunication best prices on the web

never heard of this site before so i decided to order a small item, super fast shipping and great prices. when my shifter came in it was in perfect condition. i will be doing business with Autoplicity again.

Best price I've seen online and the shipping is extremely fast. I would definitely use this site again for future automobile needs.

Cheapest around, website was easy to navigate, will follow up with details once product is received!

This was my first order with autoplicity. Great price, fast communication, easy payment options! Highly recommended.

Great prices with friendly customer service what more could you ask for

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