From the Reference Section:
- Carter Dual 4-Barrel Carburetor Idle Adjustment
- Carter Dual 4-Barrel Carburetor Adjustment
- Carter Dual 4-barrel Carburetors, Linkage Sticking
- Buick Cam Specifications for 401 and 425 nailheads
- Buick Cams from Kenne Bell, 401, 425
    - Nailhead Engine Specifications
- Head Flow Chart
- Nailhead Oil Pump
- Nailhead cam specs and cam selection
- Nailhead Parts Interchange
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Thread: 1963 buick lesabre tranny

  1. #1
    taank Guest

    Post

    any body know if i can swap a newer tranny in. i've been told it has a dynaflow

  2. #2
    Ed Raner Guest

    Post

    It will bolt up the the turbo 400's from 64 and 65-66, the latter with the switch pitch transmission. The swap will require some machining on the center hole on the th400 flex plate to fit the 63 crank and a bushing as well. If you're going to do it, make sure you get all the wiring that goes with it. The dynaflow used a rod kick-down to shift it into passing gear, the th400's are electic. Get the carburetor and linkage as well to operate the converter and the kick down.

    You can put a 200r4 or a 700r4 in but it requires and adapter plate between the block and the transmission. This web site has the adapters you will need

    http://www.transmissionadapters.com/53-66_nailhead.htm

    Good luck.

    Ed

  3. #3
    Ed Raner Guest

    Post

    I jumped the gun on my last post, I wrote the post assuming you had the 401 engine, the LeSabre might also have the 300-340 engine. That's a whole different story. I'm not familiar with the small block and its related transmission. Sorry to have jumped the gun.

    I'll look in my 63 chassis manual and see if I can't come up with some facts for you.

  4. #4
    Ed Raner Guest

    Post

    The LeSabre will have a 401, it will be the low compression 2bbl engine but it will have the Twin Turbine (dynaflow)

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