When my machinist was checking the bearing clearances one of the rod bolts broke. He is familiar with these engines and was using the correct torque. when i tore the motor down i didn't see any evidence of anyone being in the bottom end before who could have over torqued them. This makes me very nervous about the rest of them. is there any way i can measure the stretch on the others? I have several other 2F/3F motors i could swap the rod bolts from. The only new ones i can find are from SOR $20/piece, i've searched and see there are not any direct replacements. Any thoughts?