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Versatile Comp Cams 12-476-44 4-pattern 253/263 Ib, 255/265 Ob Hydraulic Roller Cam For Chevrolet Small Block Set [5E0kH7ZU]

$51.99 $166.99 -69%

4-Pattern 253/263 IB, 255/265 OB Hydraulic Roller Cam for Chevrolet Small BlockResourcesInstallation InstructionsResourcesInstallation InstructionsSpecifications:Description_ASMFits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302,

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4-Pattern 253/263 IB, 255/265 OB Hydraulic Roller Cam for Chevrolet Small Block
Resources
Installation Instructions
Resources
Installation Instructions

Specifications:

Description_ASM Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information.
Description_DEF Engine Camshaft
Description_DES 4-Pattern 253/263 IB, 255/265 OB Hydraulic Roller Cam for Chevrolet Small Block
Description_EXT Recommended in larger c.i. and high compression applications. 3500+ Stall.
Description_INV 4-Pattern 253/263 IB H-Roller Cam SBC
Description_KEY 265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10
Description_SHO 4Pt 253/263 HRlr SBC
Description_SHP None
Description_TRA Warning: Camshaft Optimized for use with a Melanized or Nitrided distributor gear. Not compatible with cast or steel gears without similar surface treatments. Failure to utilize the proper distributor gear will void all warranties and/or return policies
height 2.75
length 12.0
LTL N
weight 9.15
width 6.5

What Our Customers Say

January 1, 2026

Absolutely no complaints!

Very intuitive to use and the results are amazing.

- Emily W..

January 1, 2026

Absolutely no complaints!

This product is a brilliant tool. It's very well-engineered and smart.

- Irvin C..

January 1, 2026

Absolutely no complaints!

It's a very well-thought-out design that maximizes usability.

- Logan M..

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