35mm - 44mm intake port

35mm - 41mm exhaust port

49mm - 53mm intake valve

41.5mm - 42.5mm exhaust valve

Ev8 stainless 8mm lightweight intake valves

Inconel 8mm lightweight exhaust valves

Hardened ductile iron intake and exhaust valve seats

B5 copper exhaust valve seats (optional)

12mm or 14mm spark plugs

86 - 90 cc chamber volume

930 or carrera intake flange

MFI (optional)

Nirist fire rings (optional)