| Also known as | 10-0349 |
| Listed in parts books | Not catalogued by year yet |
VALVE GUIDE A65 63-70 .004 - ROWE C630
A .004-oversize valve guide for the BSA A65 twin, cataloged under Rowe number C630.
This is a valve guide sized .004 over standard, listed for the BSA A65 twin across the 63-70 span in our records. It carries the Rowe part number C630 alongside the catalog number, so if you've got a Rowe cross-reference sheet in hand this is the same piece. The alias 10-0349 shows up on the same part in other listings, worth checking if that's the number in your book.
Read more
A valve guide sits in the cylinder head and keeps the valve stem running true as it moves up and down, so wear here shows up as valve wobble, poor sealing, and eventually smoke or a rough idle. The .004 oversize means this is meant for a head that's been bored out that amount to clean up a worn guide bore, not a straight standard-size replacement.
This is a BSA part, not a Triumph one, despite whatever manufacturer code it's filed under in our system. If you're working on an A65 head and need a guide, this is worth having on hand, but confirm your bore has actually been machined to the .004 oversize before you order it.
Sorry if we got something wrong here. If you think this information isn't correct, .