Posted 2018-09-21 8:21 AM (#570502 - in reply to #570499) Subject: Re: A Poly years
Extreme Veteran
Posts: 444
Location: North of the 49th
Hi
The block is the same but the crankshaft flange was changed after 1961 with the discontinuation of the cast Iron Torqueflite transmission as the Aluminum A-727 Torqueflite was introduced in 1962.
Posted 2018-09-21 4:57 PM (#570522 - in reply to #570499) Subject: Re: A Poly years
Expert 5K+
Posts: 8947
Location: WHEELING,WV.>>>HOME OF WWVA
i borrowed this from and old thread ------------------------------------------------------------later
61 was the last of the 8 bolt cranks, also the bellhousing dowel pins changed locations after 61..
62 and newer polys also had a different block casting on the lower right side of the block at the bellhousing (not as long) which does not allow use of the bottom bolt on that side .