Description
The head contains a fillet that leads into a seat face that is machined at a specified angle to match the machining of the valve seat to which it will match. The seating of the valve face to the valve seat is what provides the seal for the valve against combustion pressure.
Fitment Application:
Make: Nissan
Model: TK20
Years: 1985 To 1995
Engine Type: PD6
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