1978 econoline club wagon engine swap questions

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Weldermike92
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1978 econoline club wagon engine swap questions

Post #1 by Weldermike92 » Mon Aug 29, 2016 10:37 pm

Hey what's up guys, ok I'm say this and get it out the way first.. I know this is a Inline 6 site.. I love my 300 big 6, just looking for some advice.. .. ok so my buddy is selling me a 1970 F250 with a 390 big block, I just bought my first van, the 78 club wagon with the 300, my van is a 1/2 is a half ton and the 250 is a 3/4 ton. I have just been give another 300 with bad head for free, plan was to build a 300+ hp inline for the van, and have a spare incase I manage to some kill the built 300.. But now I wanna swap the 390 in my club wagon, and keep the c6 in it and use the built 300 in the f250 since truck has 4 speed with granny gear and it'll pull the front of Walmart down.. What good or bad idea? And what do I need for this swap, the van is my first priority over the truck.. thanks!!

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bubba22349
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Re: 1978 econoline club wagon engine swap questions

Post #2 by bubba22349 » Wed Aug 31, 2016 1:58 pm

Weldermike92 wrote:Hey what's up guys, ok I'm say this and get it out the way first.. I know this is a Inline 6 site.. I love my 300 big 6, just looking for some advice.. .. ok so my buddy is selling me a 1970 F250 with a 390 big block, I just bought my first van, the 78 club wagon with the 300, my van is a 1/2 is a half ton and the 250 is a 3/4 ton. I have just been give another 300 with bad head for free, plan was to build a 300+ hp inline for the van, and have a spare incase I manage to some kill the built 300.. But now I wanna swap the 390 in my club wagon, and keep the c6 in it and use the built 300 in the f250 since truck has 4 speed with granny gear and it'll pull the front of Walmart down.. What good or bad idea? And what do I need for this swap, the van is my first priority over the truck.. thanks!!


Though I have always been a big FE engine fan (390 and the numorious others) and have swapped them into lots of old Fords and other brands too, that never came with them. I have to say that since these FE engines were never factory installed in the Econoline Vans, you are going to be in for a lot of custom fab work IE like adapting or welding in front motor mounts, exhaust, cooling system mods, linkage, rewiring, etc. i am not saying that it can't be done just that it's not all a bolt in job, it should fit though if your up for all the nessisary work. That said as well as the 300 a 302, 351, or even a 460 could be bolted right in your Van all with factory parts. The 300 C6 trans case will not bolt up to the 390 FE engine so you will need to at least find a FE type C6 trans case and swap in all your current C6 parts or a find complete 390 C6. Lastly the bell housing and flywheel in the 70 F250 will also need to be changed to use that trans with your 300 but at least those were factory made parts that should be fairly easy to get. Good luck :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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tom954x4
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Re: 1978 econoline club wagon engine swap questions

Post #3 by tom954x4 » Wed Aug 31, 2016 3:42 pm

Another potential downside with the 390 in the van is the access for maintenance, such as spark plugs. I dont' remember the dog house configuration in a '78 club wagon. What I do know is that when I had a '93 Econoline with a 302 V8 the spark plug access to the forward most plugs was a real pain. I think the maintenance and access would probably be far better with a 300 in the club wagon.
1995 F-150 XL, 300-6, 4x4, ex-cab, sb, 3.08 5-speed, 2 1/2 in. exhaust w/flowmaster 50, MSDignition failed with no warning, now out, canopy, 179,000 + miles. Gone but not forgotten 1965 F-100 240 3spd lwb "the green hornet"; 1960 F-250 4x4, 223 six, 4sp with wrap-around rear window, two-tone paint, overhead camper.
Tow vehicle: 2012 F-250 4x4 6.7 diesel XLT s/c lwb

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