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Old Jun 5, 2004 | 08:39 PM
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'73 250
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390 to 300

I have recently bought a '73 F250 with a smoking 390 and tight C6 transmission. My dilemma is this, I want to rebuild (maybe build up) the 390, but I still need the use of the truck. I have access to a good running 300-6. I have swapped a 352 for a 300 before in a '64 I believe it was. This was for a friend, so I am not sure of the year. I built and welded the motor mounts in place while the engine was suspended from a crane. On my truck, I want to replace the 390 after the rebuild, so I need to hopefully get a set of motor mounts for a '73 F250 with a 300 6. Are these in existence? Any help or suggestions on the swap would be appreciated.
John
 
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Old Jun 8, 2004 | 09:32 AM
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Mike G
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I know there are I6 trucks that I see in the salvage yard within that range, but keep in mind you can look for a truck from 73-79, they are the same. you will also need a tranny for that I6 as it will not have the same bell housing pattern as your 390.

--Mike
 
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Old Jun 8, 2004 | 11:54 AM
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78fordman
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well, the 390 and the 300 have different bolt patterns. Both are great motors, but you would need a smf tranny for the swap and different towers.
 
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Old Jun 9, 2004 | 03:31 PM
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the perches are actually the same for a FE and a 300 they just need moved one set of bolt holes forward or reverse (I forget which way)
 
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Old Jun 9, 2004 | 08:25 PM
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Mike, the truck that I am going to get the I6 out of also has a good auto. trans. Thank all of you for the info.

John
 
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