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Original Message
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| RE: 390 back in 67 gt s-code |
| By Mike McQuesten - 10/13/2002 11:59:33 PM; IP 65.176.105.69 |
That '63 block can be made to fit but I'd recommend not using it. I think it would be better to use a '65 & newer block that has the correct engine mount holes that are compatible with the '67 Mustang big block mounts.
As for heads you'll want to use heads that are designed to accept the GT 390/uni-body big block exhaust manifolds. Good heads to use are C6AE-R; C7AE-A. My preference(something I've learned from reading this forum for awhile)would be the C6AE-R. They offer everything you need to build a set of GT 390 heads or they are easily modified to work as well as '28 CJ - C80E-N.
If you're not intrested in concours correct '67 Mustang 390, go with FPA headers/C6AE-R heads on a well built 390/428. As has been noted numerous times, the original exhaust manifolds used on '66 - '69 FE powered uni-body cars are very restrictive thus causing real limitations on strong high performance.
Your questions make me think of my neighbor down the road who has a '68 -S- code GT fastback 4 speed collecting dust in his garage. It's the dark Steve McQueen/Frank Bullet green with gold stripes & black interior. He replaced the original 390GT circa 1974 with a 302-4V. Kept the 2.32 close ratio big block gear box & 3.25 rear gears. All this in an attempt to get better gas mileage. At that time it seemed like a good idea. Now the best idea would be to sell it to me. |
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