Photo for COMP Cams Camshaft 11-677-4; Xtreme Energy 2000 to 6400 RPM 0.568 in. 0.578 in. Mechanical Flat Tappet for Chevy 396 to 454

COMP Cams Camshaft 11-677-4; Xtreme Energy 2000 to 6400 RPM 0.568 in. 0.578 in. Mechanical Flat Tappet for Chevy 396 to 454

$266.95

Part #: 11-677-4

Brand: COMP Cams

UPC: 036584070337

Estimated Ship Date: 6/9/2025 (From manufacturer)

This item ships free with qualifying orders of $150 or more.
See our shipping policy for more details.

Details

  • Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
  • More vacuum allows an increase in duration for improved performance and assists power brakes
  • Excellent performance in street carbureted applications
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios, etc.
  • Good top end horsepowerNot legal for sale or use on pollution controlled motor vehicles.

Product Description

All Comp Cams Camshafts are manufactured to the strictest tolerances. Rigorously tested and checked for quality.

Specifications

Camshaft Series:
Xtreme Energy
Make:
Chevy
Engine:
396 to 454
Camshaft Type:
Mechanical Flat Tappet
RPM Range:
2000 to 6400 RPM
Intake Valve Lift:
0.568 in.
Exhaust Valve Lift:
0.578 in.
Advertised Intake Duration:
274 deg.
Advertised Exhaust Duration:
280 deg.
Intake Duration @ .050":
236 deg.
Exhaust Duration @ .050":
242 deg.
Lobe Separation:
110 deg.
Camshaft Grind Number:
XS274S
Usage:
Street Performance
Quantity:
Sold As Each

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Alternative Parts

COMP Cams Camshaft and Lifter Kit CL11-677-4; Xtreme Energy Mechanical Flat Tappet 2000 to 6400 RPM for Chevy 396 to 454

COMP Cams Camshaft and Lifter Kit CL11-677-4; Xtreme Energy Mechanical Flat Tappet 2000 to 6400 RPM for Chevy 396 to 454

COMCL11-677-4

$360.95

Estimated Ship Date: 6/9/2025 (From manufacturer)