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1966 mustang help needed?

938 Views 2 Replies 3 Participants Last post by  sancho
I have a 1966 mustang coupe with a 6cyl and a 3spd transmission and was wondering if i put a 289 v8 in it would i have to do any modification?
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might want a bigger radiator
make sure the 289 has a provision for the pilot bushing... Goes in the rear of the crankshaft to keep the input shaft of the trans centered
but car/frame mods, none needed
It depends if you want to do the job right or just drop in the V8.
The lug pattern is wrong, it takes a different cross member for the transmission, and at least the front springs are different.
So you need to go to a 5 lug pattern, get the right cross member. The rear end needs to be changed over to a 9". I am sure there are other details.
Here is a link to the short list:
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