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Originally Posted by jmoneyfoot
This is a 145hp 305 2bbl not a ton of power I just am wondering if a stock 305 crank will hold up or if I should use a steel 350 crank. Seems like everyone is trying to get the lightest crank possible. Im wanting to build a very compeditive R/SA but are finding out racers neet me dont like to talk about there combinations. Will a stock 305 crank go 7500+rpm?
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It will hold up well. I have run cast cranks in super stock engines that rev to 8500 rpm with no failures. You might also think about using the factory 305 rods. They are lighter than the aftermarket rods and would be plenty strong for the application you are talking about. Resize and some new high strength bolts.