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Product Summary

262, 267, 283, 302, 305, 307, 327, 350, 400

  • Kit is specially designed to fit the 1958-98 Chevy 262-400 engines
  • Has three unique cam designs for each application that deliver excellent horsepower gains & broad torque curve
  • It is perfect choice for muscle cars & street rods
  • Features an early intake valve opening & long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note
  • Works best with aftermarket converters & more rear gear

Key Specs

MFG. Part #CL12-600-4
BrandCOMP Cams

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Details

COMP Cams Thumpr 279TH7 Cam and Lifter Kit for Small Block Chevy.

Chevrolet 262-400 c.i. 8 cyl. 1958-1998. For '58-'98 262-400 cid Small Block Engines w/ Flat Tappet Cam - High Performance Street, Stock Converter Ok, Best w/ 2000+ Converter & Gears. Choppy/Thumping Idle. Thumpr. SMALL BLOCK CHEVY Hydraulic CAM AND LIFTER KIT - Thumpr : High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.

  • Three unique cam designs for each application that deliver excellent horsepower gains & broad torque curve; perfect choice for muscle cars & street rods
  • Early intake valve opening & long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note
  • Best with aftermarket converters & more rear gear

Application

1958-98 Chevy 262-400

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #CL12-600-4
BrandCOMP Cams
GENERAL
Camshaft TypeHydraulic Flat Tappet
Intake Duration279
Exhaust Duration297
RPM Range2000 to 5800
Lobe Separation107 °
Intake Duration (.050" Lift)227
Exhaust Duration (.050" Lift)241
GTIN Code036584181224
Grind Number279TH7
Intake Valve Lift w/ Rocker Arm Ratio0.479"
Exhaust Valve Lift w/ Rocker Arm Ratio0.465"
External Ignition Box RequiredNo
Valve Springs RequiredYes
Valve Spring IncludedNo
Lifter TypeHydraulic Flat Tappet
Lifters IncludedYes
Retainers IncludedNo
Locks IncludedNo
Valve Stem Seals IncludedNo
Timing Chain and Gears IncludedNo
Assembly Lubricant IncludedYes
Pushrods Included
Rocker Arms IncludedNo
Gaskets IncludedNo
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