Bottom line is if your going to put in a stock ls style motor wether it's a ls6 or ls7 for the price you are better off with your stock motor and modding it alittle. Also the ones you posted are grossly overpriced and you could get a built motor for almost the same.
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2000 SS Procharger
98 Z vert turbo
07 TB SS cai catback and tune
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