CHI small block Chevy 13 degree heads are the ultimate in wedge style Chevy performance. A 279cc as cast port or CNC ported options are designed for serious circle track or drag racers who want maximum performance. The CHI 13 degree head features extra tall intake ports, revised spark plug location, and a highly efficient combustion chamber significantly increasing potential to suit power applications well over 800HP.
As standard these heads come as standard with CNC machined combustion chamber, extra thick decks, as cast intake ports are CNC port matched. As standard these heads come machined for O’ring intake gaskets and port nozzles.
You have the option of bare heads or complete assemblies ready to bolt on. CHI 13 degree heads do not require any custom components, hardened or bronze alloy valve seats and CHE Bronze Alloy valve guides make these heads suitable for the toughest environment.
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