Modern technology, sintered valve seat inserts as used by the OEMs from Dura-Bond, from large volume to small batch prototypes, together with traditional "High Chrome" cast valve seat insert are available from stock. Materials are available in both styles for unleaded fuel and LPG Conversions. Cast valve seat bar is also available for customers who wish to produce their own valve seats.
Imperial valve seat inserts are suitable for fixed size cutters as the interference fit is added to the valve seat insert.
The metric range valve seat inserts are size as marked.