I'm building a 408 and the block I was planning on using is a 73 360. I had it Sonic tested and the machinist just called and gave me the numbers but I don't know what numbers are acceptable so hopefully somebody here can tell me if this sounds ok.

He said the drivers side major thrust side was real good with the thinnest point he could find at .198" and the thickest was .223".

The passengers side was just the opposite like they didn't set up the cores exactly on center. The major thrust thicknesses ranged from .163-.181.

It needs bored .030 to clean it up so that will reduce the numbers by .015" per cylinder.

This is just a street/strip engine that will make approx. 450 hp and gobs of torque.

What do you guys think about these numbers? If their bad I have access to another 360 block I could try.

Before I even started on it I was thinking about doing a partial fill to strengthen it up but what do you guys think about that? From what I've read partial fills work ok on the street (i.e. no overheating) but correct me if that's not right.

Oh yeah if it makes any difference my pistons are lightweight Wiseco forged Pro-Tru slugs that only weigh 452 gr each. I forget what the SCAT I beams weigh but I know they're quite a bit lighter than stock rods so the rotating assy. will fairly light.

Thanks, Tracy  

Sounds like .080 over material here.  

Your going to end up with .148 thickness on the passenger thrust side with a .030 overbore.
Minumum allowable is .100 thous. according to Chrysler.
So you have a safety margine of .48 thousands.
The block filler will not be needed with this safe amount, plus block filler can lead to overheating problems in a street application.  

Great!! Thanks allot for the info guys.