Main Studs??

Moper,

Big Block Mopars

We measure the Main Bearing Bore Hole.

Checked with a 'Sunnen' Dial Bore Gage


Maximum 'Out-of-Roundness'

* General Rebuild Engines --- .0015" to .0020"
* Performance Engines ------- .0010" to .0015"
* Race and Marine ------------ .0010"
* Diesel ------------------------ .0010"