Cam Bearing Set for a Triumph TR250, TR6 and GT6. Only the 1968 TR250 have blocks that are bored for these bearings. These are split bearings which are the only type available at this time. If you have a TR6 or a GT6 you must have your block machined to accept these bearings. Repco lists the specs at 1.968 to 1.9695.
