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robertjh 03-07-2003 02:43 PM

ford 390
Hi - Am the owner of a 1963 Thunderbird which I would like to slightly modify to make a nice cruiser . My question is regarding the Engine . Presently it has the original 390 & automatic trans . Would a 390 & C6 out of a newer Ford bolt in ? Would I be better off with a 351W ?
Thanks for the input .

4 Jaw Chuck 03-07-2003 03:46 PM

Nothing wrong with that old big block, rebuild her (or swap a newer less worn version) and you should have plenty of power. Swapping out the 100 pd cast iron intake with aluminum is one of the first things I would do.

The possibilities are endless... ;) 03-07-2003 04:00 PM

Still LOTS of hi-po parts made for FEs including Edelbrock trick heads manifolds, cams pistons - everyting you can think of. Get a Summit catalog and drool!

robertjh 03-07-2003 08:41 PM

Thanks for the replies . I don't think it's the 390 in my car that's limiting me , I think it's the transmission . Will a C6 bolt onto the 63 block ?

KULTULZ 03-08-2003 03:03 AM

[quote]Will a C6 bolt onto the 63 block ?<hr></blockquote>

Yes it will, but if the car was mine, I would have the FMX overhauled by a COMPETENT AND KNOWLEDGEABLE SHOP.

The conversion will give you trouble in linkage and driveshaft length at the least. Also be advised that about the year of your BIRD, FORD changed the engine mount pads on the block so take this into consideration if you want to use a later engine.

The 390 can be warmed over easily and still appear to be factory assembly.

woodz428 03-08-2003 03:05 AM

It will fit, a few minor mods (mounts,etc.), although that trans is the same as a later FMX and they are a fine trans. You could get a '66 or later valve body and install it with a shift kit and the cruiso will be more than up to the task.

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