T/A heads
A little addition to this thread....
Over the last 4-5 years I’ve had 5 sets of T/A heads come thru the shop.
Seems like none of those sets saw “quality” machining in their last trip to the shop.
I just shipped off another set that had the same experience.
This set had ex seats installed that had a noticeably too large ID, and a lack of any kind of blending to help that situation out.