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How much power are you planning on with the f1 and what is your milage?
I don't know what mileage is, Body has 130k but motors is supposedly not orig. I plan on the running the biggest pulley I can to keep the bottom together till I build a new stroker bottom.
Wonder how long my completely stock ls1 with high mileage will last with an F1 and 5.25 pulley.
Id say thats totally dependent on how many rpm,s the engine sees on a day to day basis. If you short shift it at say 2000rpm it will live a while no matter what pulley is on it.