Ty they ended up being m12 bolt 1.75 threads. 35mm long (tad over 1.25”) bolts. Ordered 10.9 grade ones. Thought I’d update the thread in case someone looks for this info later.
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2010 camaro ss/rs, standard 6 speed, ls3 motor, bmr subframe connectors, jba 3” competition Exhaust, stainless works 1 7/8" headers, adm cold air intake, hurst short throw shifter, bo white ported tb, mishimoto aluminum radiator, mishimoto oil cooler.
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