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valve sizes on a twin cam????

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Old 03-01-2009, 06:59 PM
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Default valve sizes on a twin cam????
does any one know the stock size valves on the 05 twin cam right off the top and i plan on putting 600 lift cams in and am not sure what size of valves to go to any advise i would appreciate
 
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Old 03-02-2009, 09:54 AM
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I think it's 1.84 & 1.57 valves. I'd suggest a 1.9 or 1.94 intake if you're changing valves and porting. go with what the porter suggests.
 
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