Slant six to 318

Engine Swaps

  1. SlantSixSullivan

    SlantSixSullivan Well-Known Member

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    I've got a slant six in my 1980 Diplomat coupe and I am looking at buying a low mile (29,000) 318/904 combo to swap in it.

    A few concerns I have are as follows:

    It is my daily driver and cannot be down for much longer than a weekend.

    Is my current driveshaft going to work with this swap?

    Any linkage differences between a slant 904 versus small block 904?

    I have the Schumacher mounts to convert the K frame, so no issue there.

    Is it possible to get this done in a couple days, provided there are no unexpected catastrophes? I believe it is a lean burn engine, which can be done away with later. Also, I am aware that an exhaust system is necessary to drive the car so I will schedule an appointment to deal with that once I have the engine in.
     
  2. Oldiron440

    Oldiron440 Well-Known Member

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    You will need the proper radiator, hoses etc.. Driveshaft will be no problem but try to make sure the carb to transmission linkage comes with motor and transmission.

    I'd say a direct swap v8 to v8 or /6 to /6 a weekend no problem. This swap is what a week of vacation is for.
    I'd like a v8 parts car fo rob parts from for all the little stuff you don't think of.
    One more thing your exhaust guy is going to have to put cats on in the stock location's so add that in your budget.
     
    Last edited: Sep 22, 2018
  3. SlantSixSullivan

    SlantSixSullivan Well-Known Member

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    My exhaust guy always does exhaust with no cats for me. I was actually just thinking about the radiator after I posted. Wouldn't be a bad idea to re-gasket the engine while I'm at it. I don't have a parts car, unfortunately but I do know of some in the area. The deal I'm getting includes engine, trans, driveshaft, plus all the accessories on front of the engine. I will make sure the linkage is all there and included. The guy says he can drive the car around enough to put it up on a lift, so I'd imagine the linkage is there. Car was wrecked, that's why he's parting it out. By the way, it's a 76 Volare two door, if anyone needs parts I'd be happy to take a look at what's left on the car.
     
  4. Oldiron440

    Oldiron440 Well-Known Member

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    A 76, I would put valve seals in it and mabe a timing chain set. Convert the ignition with a conversion kit while your swapping things. Is it a 2v or 4v carb?
     
  5. SlantSixSullivan

    SlantSixSullivan Well-Known Member

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    2V carb. I would convert the ignition, get rid of the spaghetti vacuum mess, and do new gaskets and seals. That's at the very least. I'd likely rebuild the tranny with a shift kit as well. I was actually looking for a 904 trans for my slant six when I found this deal. So I figured why not?
     
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