Hot Rods 59A cam into 37 21 stud....

Hey guys I have the following parts :

37 block
59A cam
3 bolt cover
helmet dist

Will the later cam marry up to the dist with the 3 bolt cover and helmet distributor?

I know the earlier cams were 3" longer or so but since the later cams are shorter with that mean I will need the adaptor with my parts combo ?

Thx !

 

3"? Maybe difference between a 60 and an 85. Question best asked over on the Fordbarn.