This may sound like a dumb question but, I was thinking about putting a 429 in a cobra. Is it possiable? Is the 429 now a racing motor, I can't find which car it is in stock? the perfect situation would be a wrecked car that has that engine in it stock. but I don't know if that car exists. I did find out that the 91 Bronco's had the 351's. Also what does that W or M mean after the 351 ?