"Phil Sisson, Litchfield Aerobatic Club" wrote in
message ...
jls wrote:

"Jerry Jensen" wrote in message
...
Anyone know the thread size(s) of the exhaust studs on A-65 cylinders?

5/16-24 on the exhaust pipe end. Use those brass nuts purchasable from
Spruce or Wicks and they will last longer.

And I think the end that goes into the cylinder is coarse thread.

Exactly.