Welcome to our web page. This is
the home of Boss Performance. If you are genuinely interested in Boss
429 Mustangs, you have definitely come to the right place on the Internet.
Boss 429 World Registry We started the Boss 429 Registry in 1974 and have been compiling in-depth information about every vehicle since then. We also keep track of original Boss 429 engine blocks and H/M 429 NASCAR & H/M 494 CAN-AM motors...