sm465 conversion

[burnin oil]

Double check that your 383 isn't internally balanced. My 400 scat crank is.

As far as your swap goes. Get the frame bracket and z bar for a square body and pedal assembly for a 60s truck. Then you will only need to fab the linkage between the pedal and z bar. The 60s hydraulics would probably run the hydraulics on a squarebody hydraulic clutch but those bellhousings are unique. The lines and slave cylinder for an 86 1 ton should get you a cast cylinder.