A "Powerglide engine" would be a 235 built expressly for a Powerglide transmission which did not use a pilot bushing. The difference is the crankshaft was drilled but not finished to accept the pilot bushing needed by a manual transmission.
My 57 235 is one such engine. The crank was drilled but not reamed for a pilot, therefor an undersized OD pilot had to be installed in order to mate the 3sp clutch shaft to the crankshaft.
Sorry for the confusion on my part.

~~ Jethro
1954 3100
Back to Life
In the Dity Gallery
1951 3100 (gone) / 1956 4400 (still in the neighborhood) / 1957 6400 with dump body (retired) / 1959 3100 panel (in the woods junked) / 1978 Custom Deluxe K10 / 1993 S-10 4.3 / 2004 Chevy Crew Cab / 1945 John Deere H / 1952 John Deere B / 1966 John Deere 2510 / 1967 John Deere 1020