Re: 455 and an SM465
I've never seen a SM420 or SM465 mated to a Buick motor, Usually the long-shaft T-18, T-15 or TH400 A/T on Full Size Jeep Trucks.
I know that the CJ's used a shorter bellhousing than the big Jeep Trucks.
That may work for other GM applications.
Good Luck on the project, my 1968 M-715 will have either the 350v8 or 455v8 Buick engine installed to a T-18 or TH400 A/T or NV4500 5 speed O/D manual transmission.
I do have a SM420 that will used on my 1956 Willy's CJ-5 SBC.
1970 Kaiser J-3000 "MACS JPR"
Buick 350v8, T18, D20, D44, D60
Model J-3600, 3406X19 GLADIATOR
Robert "MAC" Maclay
Suisun City, California
Yahoo Moderator: FSJ-List, CA_FSJA.
1955 Willys Jeep CJ-5
1963 Buick Skylark Convertible (sold 1985)
1964 Willys Jeep J-300 Gladiator (stored)
1968 Kaiser Jeep M-715 w/winch (stored)
1981 AMC J-10 Honcho w/6 Cyl. (sold)