Identifying the different 400-430-455 timing covers

Discussion in 'Buick FAQ' started by ctlikon, Jun 26, 2016.

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  1. ctlikon

    ctlikon Well-Known Member

    I’ve done some searches to try and figure out the timing cover on my 67 GS400. Everyone seems to state that the earlier BBB covers are all the same and have 0-4-8 degree timing marks on the tab along with the smaller ” oil pick up passage and that the 71 and later covers have 0-4-8-12 + on the timing tab and have the 5/8” oil pick up passage (70 Stage 1 had larger 5/8” passage also).
    I have found this to be not totally true and would like to post my findings for others to add to and learn from. I have found with my searches that some owners posted that their 430 engines have 0-5-10-15 degree tabs. This is what my 66 dated 400 cover has too. I am including the CASTING (not GM part) number of the factory Timing Covers that is located by the distributor hole (also nearby is the casting date in a small circle boss). Also I am including the tab timing marks according to what I have found in photos and statements. If anyone has something different or new, please post your info. I am also including the Proform and TA covers just so that all covers out there might be easily identified and I will update my original post as new info is verified.

    ID #..................Timing tab

    1381627............0-5-10-15.............67 GS400 Casting stamp 66

    XXXXXXX...........0-4-8

    1238864............0-4-8-12-+

    1246055............0-4-8-12-+

    Proform 69510

    TA_1531B

    Thank you,
    Craig Likon
     
    Last edited: Jun 27, 2016
  2. ctlikon

    ctlikon Well-Known Member

    My apologies, I'm having problems spacing out the part number and timing tab columns. If any moderator knows how to fix it so I can space them out id appreciate it.
    Thank you,
     
  3. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member


    Craig, click the edit tab and use .....to space out your columns. If you don't do that it pushes everything together. Been there, done that:grin:
     
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Like this.


    ID #..................Timing tab

    1381627.............0-5-10-15 67 GS400 Casting stamp 66

    XXXXXX..............0-4-8

    1238864.............0-4-8-12-+

    1246055.............0-4-8-12-+

    Proform 69510

    TA_1531B
     
  5. ctlikon

    ctlikon Well-Known Member

    Thanks Larry,
    I tried everything else but, and I'll do as you suggest.
     
  6. mazzy70

    mazzy70 Bill

    Just to add, 0 to 8 timing cover is number 1230345.
     

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