Posted 3/27/2026 21:45 (#11599348 - in reply to #11598709) Subject: RE: Breaking in tractor engine after overhaul?
NW Iowa
About the best break in, would be on a silage blower.
Vary the rpms and pull it.
Fun fact-
When building 426 hemi engines for racing
They would put it on the test stand set it at 7000 rpms and go to lunch.
If it was still running when they came back they had a good one.