Yep, I already had the 14" block. I did have a 'ruh roh' moment when testing the wiring prior to installing it and connecting the pups, as it was getting continuity between hot and ground. Turns out it was just a wire shorting across a push/pull lug that I had to leave loose for when I hooked up the pups, but still brief panic. It's always wise to fully test before installing, just in case.