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Hey guys I'm rebuilding my 2008 it has about 100 hours on it. I have a +3 bore kit for it. Do I need to replace the stock crank? And also do I need to get the head ported and polished before putting new valves in? Thanks:confused:
 

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Personally if I was going +3bb I would have the head ported but not polished unless your running alcohol, +2 valves and a stage 3 cam, just to get the most out of the big bore, and a intake and full exhaust and a fuel programmer is a must, but that's just me,
 
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