This is a new one for me, but I haven't rebuilt a large number of engines, so looking for input from the pros. This is a stock rebuild of the 230 flathead 6 in my '57 Plymouth. I checked the bearing clearances with Plastigage, and all clearances look good. However, the Plastigage actually left an impression in the main bearings! Yes, there's an impression in the surface that I can see and actually feel, and it was caused by the Plastigage. I was really surprised, as I've never seen this before. The rod bearings did not do this.
I had ordered the bearings (and most other parts) from Falcon Global. Everything else was name-brand, but the bearings were in a plain package with no print, save a hand-written part # and size.
Opinions, please...thanks!
I had ordered the bearings (and most other parts) from Falcon Global. Everything else was name-brand, but the bearings were in a plain package with no print, save a hand-written part # and size.
Opinions, please...thanks!