Ames Performance Engineering - Click Here!


2017 Annual Convention - Click Here! Visit the POCI Club Store - Click Here! Join us on Facebook - Click Here! Join us on Pinterest - Click Here! Vist the POMARC - Click Here!

Advertise on
Results 1 to 6 of 6
  1. #1

    Default Pontiac engine ID

    I had an opportunity to buy a 389 engine and automatic transmission and unfortunately, the seller had little info on the engine. It has stampings on the passenger side of the block in front of 287553 Y B. there seems to be conflicting info on these codes on the Internet.

    Can anyone shed light on what I have?

  2. #2
    TININDN Guest


    Bob -

    What is the date code (back of block near distributor) of the engine?

  3. #3


    Thanks Dave. At the rear of the engine, I have :
    D 9778789
    A 10 6

    Transmission is stamped on top with 894J
    Side tag is PD66 81168

  4. #4


    1966 389 2 bbl. relook at the YB? did you read those two letters correctly?

  5. #5


    Thank you. This is very interesting. The engine has a 4 barrel carb. I was told the engine came out of a Grand Prix and that it was an original to that car.

    I rechecked the YB code and it is correct. I plan to clean the engine up and will be able to provide photos. Again, thanks for everyone's help. This is what makes POCI membership beneficial. Let's all try and do more to promote Forum participation.

  6. #6

    Default Engine Codes

    Wallace Racing has a good database of engine codes for all Pontiac's.
    Go to

Similar Threads

  1. 66 to 69 OHC PONTIAC ENGINE
    By ohc6rus in forum Parts - FOR SALE
    Replies: 0
    Last Post: June 17th, 2015, 22:48
  2. Pontiac 421 engine
    By highflyer in forum Parts - FOR SALE
    Replies: 0
    Last Post: October 1st, 2013, 16:17
  3. Pontiac 400 engine
    By Custom "S" in forum Parts - FOR SALE
    Replies: 0
    Last Post: October 11th, 2012, 01:45
  4. 1972 pontiac 455 engine yc
    By Thepontiacman in forum Parts - FOR SALE
    Replies: 1
    Last Post: June 6th, 2012, 17:13
  5. '65 Canadian Pontiac - 409 engine?
    By POCIClubOffice in forum Pontiacs - Canadian
    Replies: 4
    Last Post: February 22nd, 2011, 11:02

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts