Leading A-Series engine specialist since 1981
Our 9/32-inch stem race valves are manufactured from 21NS stainless steel forgings and plasma nitrided after manufacture for extra strength and wear characteristics. 9/32-inch is the standard stem diameter.
Available in various sizes and collet arrangements as below.
Valves are priced individually.
Inlet valve choice:
Exhaust valve choice:
For use on a head fitted with hardened exhaust valve seats, we recommend a maximum valve size of 36x30mm.