[AnthonyG]

Gary indicate 2 spacers will do it, thats only .120" @ .060" each. I am 3.5 threads short as it appears Gary's most recent pic of a 3/4" reach is too. 2-14mm threads r .07" 1.5-14mm threads r .06" per thread X 3.5, that's.21- .24 so would take 4 spacers. too many surfaces to seat for good compression. I know Gary showed a head with a 3/4"reach w 2 spacers flush on an Offy head he has. Math don' work on mine. If as post 99 or 100 says there is a difference between my 400 stamped head and tubmans 425 head I think my casting config is different.