"I've got a 51 chev 3600, so she's the long box 1T."

No such thing.

1951 Chevrolet trucks had three bed sizes:
1/2 ton - http://chevy.oldcarmanualproject.com/chevyresto/51056.htm
3/4 ton - http://chevy.oldcarmanualproject.com/chevyresto/51064.htm
1 ton - http://chevy.oldcarmanualproject.com/chevyresto/52076.html (this is for 1952, but basically the same in 1951)


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.