Thanks Don.

Looks like my short run and it's associated pressurized oil distribution has presented me with oil weepage at the rear lower corner and middle section of the side plate. Noticed a slight trail of my green break in oil down the that rear corner and on the engine ID boss behind the dist.
When I was assembling the engine I thought it odd that the drain holes for that lifter/pushrod gallery were slightly raised above the floor of the gallery. Seems like it allows for a slight buildup of oil in the bottom of that gallery and especially in that lower corner. I guess it's to allow some oil to remain and seep down around the lifters. I dunno - just a swag on my part. In any case some oil is going to build up there....

I used my favorite Permatex Aviation #3 gasket sealer there and it looks like it's not going to seal. Research is turning up either Permatex Super 300 or a Permatex High Tack type sealer/gasket maker. Someone had used what looked like a silicone type sealer on it when I tore it down.
I'd be interested in hearing if of successful sealers in this area.

Also ordered the larger 10" clutch assembly from a well known local flaps. I cross ref'ed both the 49 & 54 truck spec's and the 9 1/8" was std and 10" optional for 49 and the 10" was std for 54. Both 10" assemblies carried the same part number.
I'll be reusing the 49 216's bellhousing with the 54's flywheel and clutch assembly. Hopefully this'll be a direct boltup.

Breakin is scheduled for this Sat. If all goes well a minimum 20 minute run at 2K rpm with fresh garden hose water for cooling will return the results I'm hopeing for.

Dave