Hydraulic Roller Camshaft
• Big Block Chevy
• ZZ572/620HP Engine
• Lift: .632'' Int. / .632'' Exh.
• Duration: 254° Int / 264° Exh. @ .050'' Lift
• 112° Lobe Centerline
  
  
  This steel roller camshaft is for GM 572-620 HP Crate Engines. (Must use distributor gear 809-10456413.) The duration at .050" tappet lift (intake/exhaust) is 254/264; and maximum lift with 1.7:1 rocker ratio (intake/exhaust) is .632/.632. Valve lash is zero/zero and lobe centerline is 112 degrees. Lifters Not Included. Cam has mechanical fuel pump lobe.

  Technical Notes: Distributor P/N 1104067 or melonized distributor gear 809-10456413 must be used on all crate engines with steel camshafts.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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