Description

  • Aluminum head assembly
  • Used in the 572/620 Chevrolet Performance crate engine
  • Completely assembled with 2.250″/1.880″ 11/32″ stem valves
  • Valve springs for hydraulic roller cams for up to .632″ lift
  • 310-cc rectangular intake port
  • 118-cc exhaust port – raised 5/8″
  • 118-cc combustion chamber
  • Not recommended for engines smaller than 572 cid