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Competition Cams

Competition Cams 11-556-4 Nitrous HP Camshaft

Part # COM11-556-4 Be the first to write a review

Nitrous HP 218/230 Hydraulic Flat Cam Compatible with Chevrolet Big Block 396-454

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Competition Cams 11-556-4 Nitrous HP Camshaft

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Nitrous HP Camshaft; Hydraulic Flat Tappet; 1600-5900 rpm; Adv. Dur. 262 Int./280 Exh.; Lift .505 Int./.520 Exh.; Lobe Angle 113 deg.;

Features:

  • Wider lobe separation and added exhaust duration from base XE series help shift the power to higher rpm where it can be used in nitrous applications
  • Early exhaust opening helps scavenge the extra spent gasses out from nitrous or forced induction
  • Better time slips for nitrous passes at the strip
  • Slight sacrifice of some torque and responsiveness to the base XE family for improved performance with nitrous oxide
  • Works best with COMP Cams® roller rockers and matched valve springs
  • The big question is which time slip matters more to you (normally aspirated or N2O-assisted)?
Advertised Exhaust Duration280
Advertised Intake Duration262
Brand Competition Cams
Camshaft StyleHydraulic Flat Tappet
Emission Code4
Exhaust Duration (at .050 inch Lift)230
Exhaust Valve Lift(w/ Factory Rocker Arm Ratio)0.52
Intake Duration (at .050 inch Lift)218
Intake Valve Lift (w/ Factory Rocker Arm Ratio)0.505
Lobe Separation (degrees)113
Operating RPM Range1600-5900
Product TypeCamshafts
UPC036584038719
Manufacturer Part Number11-556-4
Part NumberCOM11-556-4
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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