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98 coils on 99 LS1

This is a discussion on 98 coils on 99 LS1 within the General Help forums, part of the LSx Technical Help Section category; Hi, changing motor in 98 ss to a 99 LS1. What do I need to do to make the 98 ...

  1. #1
    Junior Member
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    white
    98 ss ragtop

    98 coils on 99 LS1

    Hi, changing motor in 98 ss to a 99 LS1. What do I need to do to make the 98 coils work on the 99 motor as one has perimeter bolt valve covers and the other has centerbolts. Do I need an adapter plate or something? Thanks.

  2. #2
    Member
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    Cedar Rpaids,IA
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    Red
    1998 Camaro SS

    I did the same thing. I went from my 98 to a Ls-6. Call Ls1speed they had a remounting kit so you could mount the 98 coils on the 99 value covers.
    1998 Camaro SS Hard Coupe Bright Red #1593
    Mods: Lots!!, still my daily driver except for winter
    383rwhp 370rwft/lbs

    1979 Corvette
    Mods Lots!!, weekend cruiser
    325rwhp and 320rwft/lbs

    2007 Dodge Ram 1500 4x4 (Yes its got a HEMI)
    Mods: Catback, BFI CAI, Winter daily driver

  3. #3
    Life in the Fast lane sunsetorangess's Avatar
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    Met. Sunset Orange
    01 SS

    Yepp adapter or newer valve covers.
    J
    2001 SS, Its not the car its the Driver that matters....

  4. #4
    Slower Than a 3rd Gen juiced99ws6's Avatar
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    Mystic Teal
    99 Trans Am & 01 CBR 929

    You will need valve covers from a 99-02 car. You will also need the coil pack mounting bracket. You should be able to pick up these parts at a junk yard or ebay. The 98 valve covers arent going to work on your 99-02 heads. Once you have that bracket you just mount the coils to that bracket and then install the bracket with all 4 coils onto the valve cover. Makes things much easier and neater.

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