No dimpling because I haven't thought of that work
I use one of the large Unibits and deburr it afterwards up
I build them so they start at the edge of the timing cover and stop over or at the rear main seal holder, I seal it to the block with a adhesive silicone and cut a oil pan gasket so it meets both ends and cover the rest of the block and glue it down to the block also up

Last edited by Cab_Burge; 08/20/19 12:22 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)