[updated:LAST EDITED ON 09-Jan-03 AT 11:24 PM (EST)]Two questions: First- I own two trucks, 1958 f-100 and a 1968 F-100. Both have engines that are blown. I want to put a inline six in each one. What year Ford inline six engines will fit in each truck. By fit, I mean, no modifications needed (mounts, bell housing, Tranny, etc.)? In other words, if I find a 1959 223 will that engine go in the 1968 with no problems?

Second question: where might I find a rebuildable six? We are plumb out of wrecking yards in our area that have anything left worth taking. Thank you.

 

Ford used the 223 up to 1964. In 65, the 240 and 300's came out. One of the best engines ever was the 300. They put them in trucks up to 1996.

 

The 60-64 223 is a better engine. They went to 1/2" head bolts, improved head design. Its a bolt in to the 58.
Consider the 300 in the other, any effort will be worth it in the long run.