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COMP Cams
COMP Cams

COMP Cams Camshaft Kit CB X4 270H-11

$726.95

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COMP Cams Xtreme 4x4 hydraulic flat tappet camshaft kit for Chevrolet Big Block 396-454 engines. Includes camshaft, lifters, springs, and more.

Key Features

  • This kit includes a camshaft, lifters, valve springs, retainers, valve locks, valve stem seals, a timing chain set, and assembly lube.
  • Designed for Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
  • The camshaft features a 226-degree intake and 234-degree exhaust duration with a 111-degree lobe separation angle.
  • This kit is best used with an improved intake manifold, headers, and rear gear ratios between 3.55 and 3.90.
  • Requires a torque converter with a 2000+ RPM stall speed for optimal performance.
  • Includes decals and instructions to aid in installation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

When you're looking to wake up the performance of your Chevrolet Big Block engine, this complete camshaft kit from COMP Cams is a solid option. This kit, part number K11-239-3, is designed for Big Block engines like the 396, 427, and 454, specifically those originally equipped with flat tappet camshafts. It's a comprehensive package that gives you all the essential components to get your engine breathing better and making more power.

Inside this K-KIT, you'll find the Xtreme 4x4 226/234 hydraulic flat tappet camshaft itself, along with a full set of lifters, valve springs, retainers, and valve locks. To ensure proper installation and longevity, it also includes valve stem seals, a timing chain set, and assembly lube. COMP Cams even throws in decals and instructions to help guide you through the process. This kit is best paired with an improved intake manifold, headers, and a gear ratio between 3.55 and 3.90, requiring a torque converter with at least a 2000 RPM stall speed to take full advantage of its performance characteristics.

This camshaft kit is suitable for a wide range of Chevrolet vehicles from the late 1960s through the mid-1970s, including popular models like the Chevrolet Impala, Chevelle, and C10 Pickup. It's a significant upgrade for drivers looking for improved performance and a more aggressive engine note from their classic Big Block.

Specifications

Brand
COMP Cams
Manufacturer Part #
K11-239-3
UPC
036584040866

Frequently Asked Questions

COMP Cams Camshaft Kit CB X4 270H-11

$726.95