Engine swap
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New User
Joined: Feb 2008
Posts: 6
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From: New York
Engine swap
Hello everyone, great site. I just bought a 1978 f250 4x4 on ebay in MI and to my surprise it came with a swapped in 460. The original sticker says it came with a 351M. I'm not sure what yr the engine is but the valve cover says meets or exceeds emissions for 1973. Driving it home I had an alternator belt go and to another suprise I couldn't just get an orginal belt cause the bracket was hand made so we had to buy various lengths and luckily the bracket had a slot in it for adjustment. When I got home the belt width had gone down by half the original size. Can I just order a mntg brkt from L&L or somewhere else and it will work? I have parked it and am trying to finish this truck so I can drive it. But when I just let it idle, it idles fast and when I turn it off it doesn't like to shut off and I am told that it has overheated. Not exactly sure cause the temp gauge doesn't work either. I looked for the connection for the temp sensor and the engine wiring harness doesn't have one that I can see, but there is a wire with no end connector that I think might be it, but not sure. I am changing the thermostat and coolant and need a fan shroud. Does anyone know the best place to get a fan shroud for a swapped in 460? I believe I bought a hack job. >:| I can go on forever but I will save those posts for later. But if anyone has any pics of a swapped in 460 It would be great to see.
Thanks,
Bernie
Thanks,
Bernie
Postmaster
Joined: Nov 2002
Posts: 3,447
Likes: 1
From: Littleton, CO
First off Bernie, welcome aboard!
Secondly, have you determined it should have a 351 by the VIN tag? The 460 was available back to 73, from what I can tell in the F250's and later in the 150's. Pick up an LMCtruck catalog for your year truck (73-79), they have all you usually need in there.
--Mike
Secondly, have you determined it should have a 351 by the VIN tag? The 460 was available back to 73, from what I can tell in the F250's and later in the 150's. Pick up an LMCtruck catalog for your year truck (73-79), they have all you usually need in there.
--Mike
Thread Starter
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New User
Joined: Feb 2008
Posts: 6
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From: New York
Thanks, and yes I am sure it was originally a 351M I found the original sticker w/the same vin# in the owners manual. I have an LMC catalog and as far as the alternator mtng bracket, they do not carry one. The fan shroud they have in there is for a 460 w/ac. This truck doesn't have ac, so I don't know if it is goin to work. I just want to know what everyone else has done and what works without too many problems.
Thanks again for your reply
Thanks again for your reply
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
It doesn't want to shut off because it's idled to fast. Idle it down and the dieseling will go away. The temp sensor wire is a single socket plug, "L" shaped. Should be around the distributor. Alternator bracket? try your local junkyards.
