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Heads and Intake swap

This is a discussion on Heads and Intake swap within the Corvette forums, part of the Vehicle Specific category; Will the heads and intake off of a 2005 ls2 fit my 98 ls1. Are they a direct bolt up? ...

  1. #1
    Junior Member
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    Red
    98 C5

    Heads and Intake swap

    Will the heads and intake off of a 2005 ls2 fit my 98 ls1. Are they a direct bolt up? Do I need to change push rods? Will my old rocker arms work?

  2. #2
    rebmeM roineS NemesisZ06's Avatar
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    Millennium Yellow
    '02 Corvette

    Yes the LS2 heads will fit on the LS1. LS2 heads are the exact same casting (243) that was used on LS6 engines with the same bore size as the LS1. The only difference between a LS6 and LS2 head is the valves and springs (same size, just the LS6 had the lighter sodium filled exhaust ones for higher RPM's). The LS2 intake will fit also but personally Id put a FAST 90 on it instead.

  3. #3
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    Would there be any hp gains from the swap?

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    rebmeM roineS NemesisZ06's Avatar
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    Millennium Yellow
    '02 Corvette

    Yes but not as much if you went with some aftermarket heads. Just guessing Id say maybe 35hp with a good tune. I havent done that swap so Im not sure. Maybe someone else will chime in who has made that head swap.

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