The Ford Barn

Scottie · 10-19-2017, 02:52 AM

I have a 39 91A that Im rebuilding and looking for a set of rings 4 ring domed piston .0825 oversize - stamped on piston crown (3 1/16 bore std) The pistons are marked and are Ford branded, no problem getting 80 over but would no doubt be undersized by 12 thou on a worn bore at least (4-6 thou wear) The only ones I can find are early tractor ring sets but they are 3 & 3/16 bore. Otherwise do these 24 stud 3&1/16 blocks go out more than 80 or sleeve? Any help appreciated Cheers Scottie

10-19-2017, 02:52 AM	#1
Scottie Junior Member Join Date: Jun 2014 Location: Hawkes Bay, NZ Posts: 16	Piston Rings I have a 39 91A that Im rebuilding and looking for a set of rings 4 ring domed piston .0825 oversize - stamped on piston crown (3 1/16 bore std) The pistons are marked and are Ford branded, no problem getting 80 over but would no doubt be undersized by 12 thou on a worn bore at least (4-6 thou wear) The only ones I can find are early tractor ring sets but they are 3 & 3/16 bore. Otherwise do these 24 stud 3&1/16 blocks go out more than 80 or sleeve? Any help appreciated Cheers Scottie