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1st - 5th Gen Drivetrain Transmissions, clutches, and axles.

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Old 06-24-2012, 09:07 AM   #1 (permalink)
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Big Block in a '63

I want to put a 402 big block in my 63. anyone that can give me tips or their experiences doing this it would be greatly appreciated. donor motor is a 70 model and I have a m20 muncie for a tranny.

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Old 06-24-2012, 11:35 AM   #2 (permalink)
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Take lots of measurements and be prepared to fabricate custom mounts or buy the BB mounts and put them in. You may have to modify the trans tunnel a bit and that's it really. Everything else should fit in nicely

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Old 06-24-2012, 09:11 PM   #3 (permalink)
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Was it a small block car to begin with? If it was, the mounts will work, trans cross member will be in the right location. Drive shaft might need to be redone. Lots of parts available for your swap, get a nice rad so you don't have to worry about over heating.

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Old 09-01-2012, 01:34 PM   #4 (permalink)
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It is actually a very easy swap. The biggest problem is exhaust and I went with Hooker Headers and custom made pipes.

Let me know if you need any details on it.

I put a 396 in a '62 back in '74.

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Old 09-01-2012, 10:10 PM   #5 (permalink)
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Ya this is a cake walk for you, it will bolt right in and find a set of Hooker headers like stated above, one tube will wrap around the outside of the frame so that is why the come with a tube loose. I too did a swap in the early 70's a 396 into a 1960 sedan delivery with a glide. The biggest problem you will have is keeping a driveshaft center support bearing in the car, the big block tends to wreak havoc on them.

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Old 09-05-2012, 11:42 AM   #6 (permalink)
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If it's a small block powerglide car, simple. Everything lines up. Even the driveshaft should be the same. Did the same thing with my 61. Went from a 350/powerglide to a 454/M20 4 speed. Assuming you have an auto trans, once the pedals are in, weld the Z-bar for the clutch linkage, and your set. Headers are the easy solution. I didn't like the Hooker Header setup, so I went with Sanderson Block Huggers. They fit great, stay inside the frame rails, and work with both 605 power steering and manual clutch linkage.

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Old 09-06-2012, 05:45 AM   #7 (permalink)
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Looks good. Those Sanderson's look good too. They weren't available when I switched mine back in the mid 70's. We would also use the Powerglide Driveshaft in our 4-Speed swaps, but the Factory Specs are different. Some people say it shouldn't have worked, but we never had any problems. Check it close to be sure.

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