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Thread: Motor Mount to Motor Bolts

  1. #1
    Join Date
    Apr 2013
    Columbia, SC

    Default Motor Mount to Motor Bolts

    Shame on me for not bagging/tagging the fasteners when disassembling the 89 engine block and the 96 expo engine block.

    I figured out the bolts for the bell housing, but I cannot figure out what the bolt looks like that goes from the motor mount and attaches it to the bosses on the engine block. There's a total of 4 bolts. Does anyone have a picture of the head of the bolt/fastener?
    -Nick M.
    Columbia, SC

    66 Squire, 89 Colony Park, 90 TC, 03 (2x) TC, 06 TC, 07 TC
    03 BMW 540iT, 04 Ford F150 4.6 XLT Reg cab, 8ft bed

  2. #2
    2 decades of DDing Box Panthers, now in a Whale VicCrownVic's Avatar
    Join Date
    Nov 2012
    Shelby Township, MI


    Short and fat shouldered bolts, iirc. I want to say 15mm heads, but could be wrong.

    ~ 1998 Mercury Grand Marquis LS - new DD
    ~ 1991 Mercury Grand Marquis LS "The Scab" - plenty of rot, summer DD
    ~ 1997 GMC Yukon - wannabe winter DD - returning summer 2020, I finally have an engine
    ~ 1991 Mercury Grand Marquis GS "The Ice Car" - My rotting winter DD
    ~ 1989 Mercury Grand Marquis GS - Rotting Retired DD
    Gone but not forgotten:
    ~ 1988 Country Squire ~ 1987 Ford Crown Vic

  3. #3
    Member of the Orb Alliance packman's Avatar
    Join Date
    Nov 2006
    Dirty Jersey Yo!


    I'll see if I still have mine. I replaced all but one of mine with allen-head bolts; the stud on the rear of the engine mount was reused for the transmission brace.

  4. #4
    Join Date
    Apr 2011
    LI, NY


    The factory bolts are about 3/4" long with a 5/8 head SAE not metric Iirc they are 7/16 course thread will try to dig one up tomorrow for pic.

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