Flex plate bolts witness marks on torque converter

Charrlie_S said

Problem with getting a converter with the large pilot, is they may not be able to give you a High stall speed with the small splines to fit your transmission (those parts are getting hard to find). So then you will need to get a later transmission, or change the front section of your trans to the later pieces.

Click to expand...

Never an issue in the changeover Charrlie. There are two ways it can be done, one of course is machine the old pilot off and weld a new one of the proper size on the old mounting cover, or use the mounting cover of a 67 and up converter. The shop that I worked for had the facilities to make their own splines, and as I recall they were available from other sources.