[Brettster]

I am trying to swap a 1965 Thunderbird 390 into my 1969 Mustang Fastback. The 1965 390 block only has two threaded mount holes. The 1969 390 that came out has 3 threaded mount holes. Can anyone tell me where I can purchase the proper mounts?

[andrewmp6]

I doubt they sell the mounts you need you might have to use a newer block.

[Brettster]

Is there a universal mount available. I just had the engine built.....

[andrewmp6]

You could rig something up i have no clue but it can be done.