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Competition Cams

Competition Cams GK12-601-4 Mutha Thumpr Camshaft Small Kit

Part # COMGK12-601-4 Be the first to write a review

Compatible with Chevrolet Small Block

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Competition Cams GK12-601-4 Mutha Thumpr Camshaft Small Kit

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Mutha Thumpr Camshaft Small Kit; Retro-Fit HydraulicFlat Tappet; 2200-6100 rpm; Adv.Dur. 287 Int./305 Exh.; Lift .489 Int./.476 Exh.; Lobe 107 deg.; Incl. Cam/Lifters/Gear Drive;

Features:

  • "GK-Kit " - Cam & Gear Kit Includes : Camshaft, Lifters, Gear Drive, Assembly Lube, Decals, and Instructions
  • Great sound (early exhaust opening and more overlap)
  • Great power (new lobe designs give great area and air flow)
  • Great mid-range response (early intake closing traps more air)
  • Minimal engine vacuum - requires mods for any vacuum accessories such as power brakes
  • Designed for use only with valve train upgrades including COMP Cams® Beehive™ Valve Springs and roller rockers
  • Works best with looser converters, more rear end gear and other performance engine modifications
Advertised Exhaust Duration305
Advertised Intake Duration287
Brand Competition Cams
Camshaft StyleHydraulic Flat Tappet
Emission Code4
Exhaust Valve Lift(w/ Factory Rocker Arm Ratio)0.476
Intake Valve Lift (w/ Factory Rocker Arm Ratio)0.489
Lobe Separation (degrees)107
Operating RPM Range2200-6100
Product TypeCamshaft Kits
UPC036584183228
Manufacturer Part NumberGK12-601-4
Part NumberCOMGK12-601-4
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

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