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engine swap

  1. LQ-9 Swap into an 2004 GTO. Need help

    LS1/LS2 Engine Tech
    So I took my car to the shop to get it tuned and a few other small things. When the car was there it started to push coolant and luckily it didn’t hydro lock the engine. Went to have heads decked and as they were going to put the “new” heads on they noticed that 6 of the head bolts were grade 8...
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