hello...Thanks for comment Paul..glad to see you share your experience!!!!!!-and how this concept works/worked....
I just talked with my machinist-let me add this....
He said for a street/hot street application-with the 292 having such a large amount of casting from top of piston to 1st ring land, he stated he feels that probably having piston sticking out of block up to .030 is acceptable-based on a crushed head gasket of .038-.040...he does this on many engines and likes to see a minimum of .030 from head to top of piston for street applications....(what is cam lift??? this is also important-but not a big issue with 292 stock design pistons due to deep dishes)
So Dave c, try this if interested-Pauls procedure seems very safe too!!!!- take .060(more is ok too) and see where pistons are-then, if piston is out of block, see how much it is out-add .040 to it( for safty margin-thickness of head gasket)-here you can determine if you want to cut more off block and or piston....
I suggest you find a shop that is familar doing this type of work-Maybe you already know 1.....
Here is a great start.....
the way I do things i would probably take .100 off block-the 292 piston has alot there on the top-due to the fact the 292 has a 4.125 stroke ,a good amount of heat is built up in cylinder, cylindr walls, pistons and rings.....Using the moly type ring vs cast is a MUST in this procedure.....
let us know what you think...will this work for you?