Make sure your bellhousing is for the SM420. There are also the cast iron bells for the SM465 that look the same but the hole is larger for the larger bearing retainer on the 465. I am not sure on the flywheel and starter questions, sorry.


Mike
1955 Chevy 6400 ex-flatbed (no bed now!) sold September 2023
In the Stovebolt Gallery
1958 Chevy 6400 flatbed W/dump
In the Stovebolt Gallery
1959 Chevy Suburban Owned for almost 20 years, Daily Driver -- sold May 2016
In the Stovebolt Gallery

Sufficient unto the day is the evil thereof