They should fit. The blocks are about 3 3/4" inches from the original mount to the relocated mount. I believe they provide about a 1 1/2" drop.
I did notice when I opened the box to measure them that the chrome bolts I showed in the original post weren't in there
, so you'll need to source two more bolts to mount the shocks.
They're yours for $25 if you still want them.
89 VN 750A - Given to son-in-law
79 CB 750K-sold 3 May 21
78 CB 750K
77 CB 750K
77 GL 1000 x 2
77 CB 550F
Holton, KS, US