Thread: Turning A Ford 360 INTO A 390

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I won't say all but a lot of the 360's were built with 390 pistons and both 360 and 390's use the same rods.
You can build a 390 from a 360 by just swapping the crank but you do have to deal with the ring ridge at the top of the cyls.

Originally Posted by REM

both 360 and 390's use the same rods.

Not true. Nominal length on 360 rods is 6.540", for 390's its 6.490".

I guess I'll never understand why people would want to do that involved swap - there are enough rebuildable 390's(or even some 428's) available, even 335Hp GT motors that have even better heads and internals then the original 360 gas guzzler, no cojones motor!!

Originally Posted by IC2

I guess I'll never understand why people would want to do that involved swap - there are enough rebuildable 390's(or even some 428's) available, even 335Hp GT motors that have even better heads and internals then the original 360 gas guzzler, no cojones motor!!

Probably the same reason why there are still guys who want to put a 400 stroke crank in a 305.

Originally Posted by IC2

I guess I'll never understand why people would want to do that involved swap - there are enough rebuildable 390's(or even some 428's) available, even 335Hp GT motors that have even better heads and internals then the original 360 gas guzzler, no cojones motor!!

Just keep in mind the GT 390's used the same heads that were on the milder 390, 360 and 352's. C6AE-R, C7AE-A and C8AE-H.