Bigtim44,
Regardless of whats in it for power.
I Hate to bust Your bubble But,unless sombody put a 64,5 0r 6 cab and nose on that truck......
That is Not a 63 Jimmy.
It,s also got a 64 hood on it,or at least the turn signals.
60 and 61 were totally different hoods and 62 had Clear lenses for the turn signals.
,to my knowledge only yr. for that.
1964/5/6 had amber lenses.
1960/thru 63 had wrap around windshields and dogleg doors.
1964/ 66 was a much more flat windscreen and easier in out of the
the cab.
Better take a look at VIN TAG on the left Windshield, post/A Pillar(should be riveted there) and see if Your numbers match up with the paperwork.
steve sr.

Last edited by steve sr; 03/14/2013 10:15 PM. Reason: info