Quote Originally Posted by chevy 37
Don't know what you mean by 85 stud. Flahead either came with 21 or 24 studs. Yours was either a 1938-48 and 49-53 Cubic inch was 239.

It's probably an 85 horsepower/221 cu in engine vs it's little baby the V8-60, which only had 136 cubic inches (the 239 didn't arrive until '39.)

http://www.35pickup.com/mulligan/fhtime.htm