Looking through the 1969 Skylark assembly manual....mine for my 400/new 455 looks like the one shown for a 350? Anyone know what this guys talking about? Thanks
The big block clutch fork has a clevis pin, the small block has a conventional pocket on the end for the adjuster rod
A small block fork will work just fine, it just wont be "correct". You might lose some points at s show. Original big block forks are hens teeth. If you can convince someone to sell you one, its big bucks. They used them from 68-72. A reproduction is made by a guy named Dave Kleiner.
Would one trade an original for an original points cover? Is the fork rarer than the 4 speed 90 deg transmission cable adapter?
You should specify which 90 degree adapter. They were different depending on the rear gear ratio. For example, I recall a car with a 3.64 rear gear ratio used a 0.785 Stewart Warner, yellow code/dot - Part number 396338, adapter.
If you are not concerns about originality,you can use a more common fork,and a different fork rod to connect to the z-bar. If it is a concours car,then you are looking for an odd piece.