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COMP Cams 12-476-44 Hydraulic Roller Camshaft 253/263 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 + 240 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-476-44
14 reviews
Sale Price

$682.95

2 left at this price

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Product Details

The COMP Cams 12-476-44 is a high-performance hydraulic roller camshaft designed specifically for Chevrolet small block engines. This 4-pattern camshaft delivers an aggressive profile with 253/263 degrees of advertised duration on the intake and exhaust lobes, and 255/265 degrees on the opposing lobes, making it ideal for street/strip applications that demand strong mid-range to top-end power.

Key Specifications:

  • Intake Duration: 253°/255° (advertised)
  • Exhaust Duration: 263°/265° (advertised)
  • 4-pattern design for optimized performance
  • Hydraulic roller lifter compatible
  • Designed for Chevrolet small block V8 engines

Performance Characteristics:

  • Excellent throttle response and drivability
  • Strong power gains in the 2,500-6,500 RPM range
  • Suitable for street performance and occasional strip use
  • Requires appropriate valve spring and lifter upgrades

This camshaft is engineered with COMP Cams' precision manufacturing standards to ensure consistent lobe profiles and proper timing events. The hydraulic roller design provides the performance benefits of a roller cam while maintaining the convenience of self-adjusting hydraulic lifters, making it an excellent choice for enthusiasts seeking performance without the maintenance requirements of solid roller setups.

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

Inboard Intake Valve Lift

0.638

Outboard Intake Duration at .050 Inch Lift

255

Outboard Exhaust Duration at .050 inch Lift

265

Grind Number

305QIO8

Advertised Inboard Exhaust Duration

317

Basic Operating RPM Range

3300-7,500

Camshaft Series

4-Pattern

Inboard Exhaust Valve Lift

0.622

Outboard Exhaust Valve Lift

0.622

Outboard Intake Valve Lift

0.638

Inboard Intake Duration at .050 Inch Lift

253

Inboard Exhaust Duration at .050 inch Lift

263

Advertised Outboard Intake Duration

307

Advertised Outboard Exhaust Duration

319

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

Lifter Type

Hydraulic Roller

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Usage

Street/Strip

Advertised Inboard Intake Duration

305

AMAZON ASIN

B00CWZVB2C

Engine Family

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

I saved so much by using Autoplicity! The shipping was fast and the website easy to navigate. I will use Autoplicity for all my future needs.

So far I love everything that is taking place

Fast checkout with Amazon

So far all is good.

Very fast with the Amazon pay option

Great

Great price and quick shipment!

Autoplicity is awsome!! lowest prices.. fast shipping great customer service.. this is hard to find in todays world!!

Speedy Service and great prices. Will be placing more orders with them soon.<br><br>Order Number: 8105

Delivered as promised.

great price, hope shipping is not delayed

thank guys didn't expect the shipment that quit,but any way thak a lot or the next order

great price very happy will buy from again excellant price

Greatest web site i have been to in a long time. Great products, affordable prices, and my item wa shipped fast. I would highly recommend and i will be back.

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