These have been designed for the B44 square barrel (NOT the round)

Designed to use B50 collets, retainers etc.

These are the biggest valves that the head will tolerate.

Valve seat work will be required

PES BSA B44 BIG EXHAUST VALVE LONG 39MM PES0010 Square Head

Add to Order

Click any of the line items below to add them to your order.