12 Valve – Valves


1.850″ 45 degree intake valve, 1.750″ 45 degree exhaust valve


Increase flow, increase swirl, increase power. These are the biggest valves you can run on an OEM 5.9l bore. Valve seat must be machined,

SKU: 07-h-002 Category: Tag:


 45 degree 1.850″ intake and 45 degree 1.750″ exhaust.

When machining valve seat on OEM head to fit these larger valves, make sure you set valve face at .055″ from cylinder head surface.

Additional information

Weight4 lbs
Engine Model

89-98 12V

Engine Type

Competition, Street

Type (Street Only)

Cylinder Head & Gaskets

Competition Products