Uh oh --390-332 engine swap mounts - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-11-2004, 11:31 AM
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Uh oh --390-332 engine swap mounts

ok, im putting a 390 out of a 68 merc monterey into my 59 Galaxie to replace to old and worn 332, both are FE engines, were the same exact block so i figured id have no problem swapping them

unfortunetly they decided to change the motor mount holes sometime between 59 and 68 so the 59 motor mounts wont bolt up to the 68's engine, evertyhing else bolts right up except that

my question is, what problems would i run into trying to make my own mounts and does that rubber in the stock ones really do anything vibration wise?

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Old 08-11-2004, 12:31 PM
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The two front holes should be in the same position. Are you sure the early mounts won't work?
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Old 08-11-2004, 03:49 PM
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im not sure, the 390 is still being rebuilt but looking at a 1970 LTD motor with a 390 in it the motor mount bolts attach diagonally while the 332's attach straight up and down, i could bolt the 332's on if i would make the one hole slightly larger as theyre spaced differantly as well but the motor mount would sit about 45 degrees off where it did with the 332
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Old 08-11-2004, 04:22 PM
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I'd have to say that the mount that is on diagonally is on wrong. Kultulz is right, the only difference is there are two extra mount holes on the later blocks, You'll be fine. Just make sure the parts place didn't give you the wrong mounts. It took me a few minutes to figure that out myself.
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Old 08-11-2004, 05:25 PM
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ahh, after looking at the pictures and my old engine i see what ya mean now the 4th hole in the new block must not be used then? since s i said before it bolts in diagonolly forming a triangle?, yeah the new block will work, thankfully, was defenitly something i didnt want to have to do(make new custom engine mounts that is)

thanks for clearing that up
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Old 08-11-2004, 06:11 PM
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Thumbs up

Let us know how it turns out. The 1965/ mounts were flat and attached to the block at three points. The fourth hole had something to do with the FT series mounting in certain heavy truck series.
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Old 08-11-2004, 09:04 PM
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yep, thats exactly what they are, would the intake from a FT engine fit on my car? ive got a FT intake and a 428 FE, but the 428 is proving a lil hard to get to(as the guy who has it is sort of hard to track down, said hed be there saturday went down there and he was no where to be found but the FT would be easy to get at(maybe even free )

they look the same but where the thermostat bolts on the FT intake has some big block thing with a hose going to it bolted on and i cant tell if the bolt holes are the same or not
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Old 08-12-2004, 05:01 AM
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Question

The FT is the heavy truck series of the FE engine (330/361/391). About the only thing you would want to use from one of these would be a block (reinforced shirts) or crankshaft (forged steel).

Is the 428 cast or aluminum?
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Old 08-13-2004, 10:58 AM
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cast i think, i dont care either way im looking for a cast simply because itd be alot cheaper than the alumanum and im not that worried about weight
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Old 08-18-2004, 05:24 PM
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Early FE in later car

I just purchased a 390 out of a '63 T-bird, and planned on building it up to ~450 hp and putting it into my '66 Galaxie. I would imagine that the two bolt blocks bolted to three bolt mounts would be weaker???? Any ideas? I am planning on this being a street/strip combo.

Chad
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Old 08-18-2004, 07:11 PM
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I can't say about cars, but the trucks (i have a 72) only use two bolts of the four anyway. As long as the mount is in good shape, you really should not have any trouble. In fact, i've not seen a truck with an FE that used more than two.

Does the car mount utilize more than two holes?
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Old 08-18-2004, 08:11 PM
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Arrow

The early 390HP/406/427 used the two point mount. The change came about in 64/65 and I believe it was due to the introduction of the FT series more than anything else.
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