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COMP Cams Camshaft Kit CB XR276HR-10
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COMP Cams
COMP Cams

COMP Cams Camshaft Kit CB XR276HR-10

$1384.27

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COMP Cams Xtreme Energy hydraulic roller camshaft kit for Chevrolet Big Block 396-454 engines. Improves performance for street machines.

Key Features

  • Fits Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
  • Includes camshaft, hydraulic roller lifters, timing chain set, assembly lube, and decals.
  • Camshaft specifications: 224°/230° duration at 0.050" lift, 0.510" intake lift, 0.520" exhaust lift.
  • Designed for street machines requiring intake, headers, 2000+ stall converter, and gears.
  • Hydraulic roller design offers improved performance and reduced friction compared to flat tappet cams.
  • Part number SK11-423-8 from COMP Cams.

⚠️ 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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Product Details

COMP Cams is well-known for making performance parts that help engines run better. This SK-Kit is their Xtreme Energy hydraulic roller camshaft kit designed for Chevrolet Big Block engines, specifically the 396 to 454 cubic inch displacements. If you're building a street machine and want to wake up your big block, this kit is a solid option. It replaces the original flat tappet camshaft with a hydraulic roller setup, which generally means less friction and better performance over time.

This kit includes the camshaft itself, a set of hydraulic roller lifters, a new timing chain set to ensure your camshaft and crankshaft stay synchronized, assembly lube to get everything started right, and decals. The XR276HR-10 camshaft has a 224-degree intake duration and a 230-degree exhaust duration at 0.050 inch lift, with 0.510 inch intake lift and 0.520 inch exhaust lift. For this camshaft to really shine, you'll want to pair it with an upgraded intake manifold, headers, a torque converter with at least a 2000 RPM stall speed, and appropriate rear-end gears. It's designed for engines originally equipped with flat tappet camshafts, and it fits a wide range of Chevrolet vehicles like the 1967-1975 Bel Air, 1967-1972 Biscayne, and 1973-1974 Blazer, among many others.

When installing this kit, make sure to follow the included instructions carefully, especially regarding the assembly lube and initial break-in procedure. This is a significant upgrade for your engine, and proper installation is key to unlocking its full potential and ensuring longevity.

Specifications

Brand
COMP Cams
Manufacturer Part #
SK11-423-8
UPC
036584025948

Frequently Asked Questions

COMP Cams Camshaft Kit CB XR276HR-10

$1384.27