390 in a 1966 Mustang coupe ? - Ford Mustang Forum
 
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post #1 of 8 (permalink) Old 06-16-2010 Thread Starter
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Exclamation 390 in a 1966 Mustang coupe ?

hey all new guy here... just picked up a complete drivetrain from a 66 t-bird was thinking of trying to jam the 390 c-6 package into my 66 coupe is it possible ? has anyone did it or know someone who had done it and if so what kind of fun can i look foward to.
are mounts and any other parts avalible to do this of will i have to go to the local machine shop to have parts made.
Thanks for any info you guys might have.
PS i know it's going to be a SOB of a job
Thanks
Rick
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post #2 of 8 (permalink) Old 06-16-2010
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I think it is not going to happen unless you cut out the shock towers and weld in a mustang II front suspension set-up.
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post #3 of 8 (permalink) Old 06-16-2010
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Why a mustang II front end? They only had up to a 302 engine. First generation mustangs had the possibility of a 428 cobrajet which is basically a 390 with larger cylinders.
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post #4 of 8 (permalink) Old 06-17-2010
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The '67-'68 and up Mustangs can accomodate the FE blocks, but the '64-'66 cannot without shock tower modification. Even in the 67-up cars, the FE was a very tight fit. Poke around, and you will see the troubles and hassles folks run into just trying to put a 351W in a '64-'66!

I agree with thetvirus, this is not going to happen without the Mustang II front end, as this eliminates the shock towers. I am also quite sure the transmission tunnel would need a beating as well, since that C6 is a big pig and certainly bigger than the little C4 that originally went there.

It's cool you got that drivetrain, but I think you are in for lots and lots of extensive work if you want to make it happen. I suppose it all depends on how badly you really want to have this drivetrain, or was it just a thought?

Get back to us,

Michael

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post #5 of 8 (permalink) Old 06-17-2010
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Yeah it won't fit and the trans tunnel isn't tall enough for a c6 to fit.I would sell it and build a 347 stroker it will fit just fine and have more then enough power and if you build it low compression you can add a blower later.
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post #6 of 8 (permalink) Old 06-17-2010
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No offense to any 390 fans but i wouldn't bother putting a boat anchor inside one of my cars. A 351w stroked would beat it in any aspect you could throw at it. If you were to go big block then swap the rotating assembly for a larger ci displacement.

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post #7 of 8 (permalink) Old 06-17-2010
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You'd even have trouble putting that '66' 390 into a '67' untill you changed the heads to the later design. Exhaust bolt locations had to be changed to fit manifolds on. 347 way better. Even a free drivetrain does not mean cheap or easy install.
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post #8 of 8 (permalink) Old 06-17-2010
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Think it over very carefully first... Imagine pulling sparkplugs on something like that just for a tune-up.

Murphy's Law!
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