Ford worked with Yamaha! Yes, Ford had the original Duratec designed by Porsche. They then altered it to what we have today. They took the final draft and designed a V8 with the same block dimensions and put Yamaha designed heads on it.

http://www.worldhistory.com/wiki/F/Ford-Yamaha-V8-engine.htm

& anyone had clicked on the Yamaha link you would have read the same thing I typed and linked.

http://www.answers.com/main/ntquery?method=4&dsid=2222&dekey=Ford+Yamaha+V8+engine&gwp=8&curtab=2222_1&linktext=Ford%20Yamaha%20V8%20engine


-'96 SE MTX 3L -'98 SVT 1,173 of 6,535 -'05 Mazda 6s, loaded, g/f's ride -Need a 96-00 manual on CD? PM or email me