Product Summary

Hydraulic Roller Tappet Camshaft Type

  • Open Box
  • Item is in like-new condition. Original packaging may be damaged or missing. Please review the description for additional details
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Key Specs

Garage Sale TypeOpen Box
Camshaft TypeHydraulic Roller Tappet
RPM Range1900-5600
Intake Duration (.050" Lift)227
Exhaust Duration (.050" Lift)241
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Need To Know

Ineligible for Return

Contains items that cannot be returned

COMP Cams 12-600-8 Details

Garage Sale Product

This is Garage Sale priced because it is a factory shipped open box item and returned that we don't carry in house.

NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

COMP Cams Thumpr 283THR-7 Hydraulic Roller Camshaft for Small Block Chevy.

Chevrolet 262-400 c.i. 8 cyl. 1958-1998. High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle. All COMP Cams Camshafts are manufactured to the strictest tolerances. Rigorously tested and checked for quality.

  • 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

Guides & Documents

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.

COMP Cams 12-600-8 Specifications

KEY SPECS
MFG. Part #12-600-8
BrandCOMP Cams
Garage Sale TypeOpen Box
Camshaft TypeHydraulic Roller Tappet
RPM Range1900-5600
Intake Duration (.050" Lift)227
Exhaust Duration (.050" Lift)241
Lobe Separation107 °
GENERAL
Intake Valve Lift w/ Rocker Arm Ratio0.513"
Exhaust Valve Lift w/ Rocker Arm Ratio0.498"
Intake Duration283
Exhaust Duration303
Sold in QuantityEach
Grind Number283THR7
External Ignition Box RequiredNo
Valve Springs RequiredYes

Questions & Answers

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