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Competition Cams

Competition Cams K11-601-4 Mutha Thumpr Camshaft Kit

Part # COMK11-601-4 Be the first to write a review

Compatible with Chevrolet Big Block 396-454

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Competition Cams K11-601-4 Mutha Thumpr Camshaft Kit

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Mutha Thumpr Camshaft Kit; RetroFit HydraulicFlat Tpt; 2000-5900 rpm; Adv.Dur. 287 Int./305 Exh.; Lift .510 Int./.495 Exh.; Lobe Angle 107 deg.; Incl. Cam/V.Sprng/Ret.Timing Set;

Features:

  • Complete Kit Includes : Camshaft , Lifters, Valve Springs, Retainers, Valve Locks / Stem Seals, Timing Chain Set, 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 Duration (at .050 inch Lift)249
Exhaust Valve Lift(w/ Factory Rocker Arm Ratio)0.495
Intake Valve Lift (w/ Factory Rocker Arm Ratio)0.510
Lobe Separation (degrees)107
Product TypeCamshaft Kits
UPC036584182252
Manufacturer Part NumberK11-601-4
Part NumberCOMK11-601-4
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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