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Engine mounts

This is a discussion on Engine mounts within the GM Trucks forums, part of the Vehicle Specific category; I have a 1990 gmc sierra and want to drop a ls1 from a camaro in it. The truck has ...

  1. #1
    Junior Member
    Join Date
    Jul 2010
    1990 GMC Sierra

    Engine mounts

    I have a 1990 gmc sierra and want to drop a ls1 from a camaro in it. The truck has a 350 5.7 in it, can I use the trucks original motor mounts for the ls1?

  2. #2
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Mansfield, PA

    Black & Blue
    '02 WS.6 / '07 Suburban

    You will need aftermarket mounts. Summit and Jeg's both have listings for a mount that adapts from the earlier generation setup to LS1, if I recall correctly.

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