These are machined in one go, making sure that they are perfectly concentric and made with the best material for the job

All our inlet valve guides require a stem seal which needs to be purchased separately.

For your convenience, the stem seal part number is 65-317

BSA B44 B25 Inlet Valve Guide Colisbro (stem seal required) PES 41-0632

Add to Order

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