My understanding is that the 64-66 A body "K" member is the same for /6 or V-8 -- so -- if I have a set of V-8 motormounts and brackets -- what does the Schumacher system do for me?
You are correct that the early A K frame is the same for both slant 6 and 273 and if you already have the correct V8 motor mounts you will be good to go to use a 273 or 318. Let's say you have a slant and want to upgrade to the 273/318 in your early A and can't find the V8 mounts, then the Schumacher mounts are for you. Now if you're upgrading to a 340/360 the mounting ears are spaced differently on those engines versus the 273/318 and he has those mounts as well for the early. Even has B/RB mounts for the early A. I've bought 2 sets of the 340/360 conversion mounts for the early A from him while at the Nationals at regular prices. They are definitely first class. This group buy is the way to go to save quite a bit of money, especially if you're even considering a swap. Even if you decide later not to do a swap, I believe you'll get more than what you paid for them at the group rate.