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
Results 1 to 3 of 3

Thread: 63 nailhead 401 to fit 65 TH400

  1. #1
    65riv Guest

    Question

    Gentlemen,
    Has anyone tried to couple an older (63)nailhead 401 engine to a newer (65) Th400 trans? The back of the crank has a different pilot size and the flex plate has different I.D. Before I send my flex plate out to be machined and make a bushing to adapt the torque converter pilot, has anyone ran into this ??????

    The 63 401 has a JT code, and the original 65 401 was an LT.

  2. #2

    Post

    Hi you are on the right track, I have done it many times.
    Thanks Butch
    Butch Pruitt
    Pruitt's Transmission
    864-226-3394

  3. #3
    65riv Guest

    Thumbs up

    Thanks Butch, I'm going to go ahead and make the bushing. Glad to hear it works!! Thanks, Sean

Similar Threads

  1. 1956 buick special 322 nailhead to 1976 bop th400
    By james1956special in forum Transmissions and Drivelines...
    Replies: 6
    Last Post: 08-19-2012, 08:57 AM
  2. Buick th400/ Chev th400
    By mr hemis lemopar in forum Transmissions and Drivelines...
    Replies: 4
    Last Post: 03-16-2009, 09:30 AM
  3. installing my th400
    By buick364 in forum Nailhead: 264, 322, 364, 401, 425
    Replies: 1
    Last Post: 08-16-2006, 07:11 PM
  4. 401-425 to TH400
    By Rob56Century in forum Nailhead: 264, 322, 364, 401, 425
    Replies: 3
    Last Post: 07-05-2005, 04:57 PM
  5. TH400 or 200-R4 or 700-R4 ??
    By mtooth2 in forum Transmissions and Drivelines...
    Replies: 5
    Last Post: 05-01-2003, 04:41 AM

Members who have read this thread: 0

There are no members to list at the moment.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
TeamBuick.com Privacy Policy