Kevin, that 1/8" height difference can be corrected by modifying the 228/248/270/302 GMC connecting rod to fit the 235 crankshaft, or using a flathead Ford connecting rod- - - -both of them are 7" long, and can be adapted to fit a 235 crankshaft. I also have an Oldsmobile 394 connecting rod (7" long) on order to see if it can be adapted to the conversion. There's a custom length big block Chevy H beam rod that's 7.1" long. "All of the above" need machine work- - - - -they're not a drop-in fit. That extra 1/8" of deck height can also be corrected by increasing the stroke of the 235 crankshaft 1/4 inch to 4 3/16". Some of the modified 235 cranks I have on the drawing board can be stroked to 4 3/8", also.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!