Prices shown are the prices you can expect to pay for a 1970 Mercury Cougar Eliminator (Boss 429) 2 Door Hardtop across different levels of condition. Edit options.
The Boss 429 and 429 Super Cobra Jet V8 engines rank as some of the most powerful engines ever put in the Ford Mustang. In fact, if we limit our discussion to first-gen Mustangs, these engines ...
Prices shown are the prices you can expect to pay for a 1969 Mercury Cougar Eliminator (Boss 429) 2 Door Hardtop across different levels of condition. Edit options.