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LS3 heads Will they work

This is a discussion on LS3 heads Will they work within the Camaro / SS forums, part of the Vehicle Specific category; I was looking in to getting ls3 cnc machined heads for my 1999 Z28 and was wondering if they would ...

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    1999 camaro Z28

    LS3 heads Will they work

    I was looking in to getting ls3 cnc machined heads for my 1999 Z28 and was wondering if they would work with a MS4 cam shaft..Any info would be greatly appreciated

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    Senior Member TLS_Addict's Avatar
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    LS3 heads require a 4.0 bore. Your LS1 is a 3.89 so no, they will not work. There are some people/shops who have done some things to make them work though but its not cheap. You are better off going for some 243 "style" heads. Lots of companies have pretty much perfected the LS1/LS6 style heads. They are CNC machined so close its as if they are already ported/polished.

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