Ford Mustang Boss 429
The mythical Mustang Boss 429 is a proper homologation of a unique legend. Ford conceived it in 1969 as a pure racing engine intended for use in the NASCAR championship. The Boss 429 featured a different engine architecture than the rest of Ford’s big blocks. First, it was much broader and had semi-Hemi combustion chambers. That helped it achieve higher revs and get better flow inside the head to produce more power and torque. The factory was rated at 375 HP, and this unit produced over 500 HP in reality and much more in race trim.