Ed
I'm having second thoughts about using the 302 clutch. I understand that that it may have originally used a hydraulic clutch so I'm wondering if my manual linkage, or my leg, will be strong enough for the beefy pressure plate. I asked a guy at an auto machine shop about milling off the ridge on my 302 flywheel but he was concerned that the FW face on the 302 might be at a different depth, or distance from the motor, than my 228 flywheel such that my linkage wouldn't work. I guess I need to do some measuring. However, I'm thinking that the 248 or 270 flywheel is the way to go since you and others think it should work.
Sixpack from the SB forums replied to my query:
First is to find a late 248 (54 or 55/1st) flywheel with the 6-bolt crank bolt pattern. This flywheel uses the smaller clutch, which will work fine on a 302. You don't need the big 11" truck clutch used on the heavy trucks that came with 302s. You might have to swap ring gears to work with the 228 starter. A 55-62 270 flywheel will also work, if from a pickup. It will have the same small clutch pattern.
Now the trick is to find one.