Re:Core plug sizes?
2012/05/03 03:31:43
(permalink)
Pre 711M four 1 5/8", three in the block and one in the back of the head.
711M two 1 5/8" and one 2" in the block. 2" in back of block should only be .368" tall to allow correct water flow, off the shelf plugs are 7/16" and all but touch the back of the bore.