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On Raptor big bore kit is in neccesary to change the valves, springs and rockers?

Old Feb 16, 2002 | 03:49 PM
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alljuice's Avatar
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I have heard different things from different people on these issues stating that the stock valves and springs dont really make a difference in any way. And I have heard a ton of stuff about the cam and how it is good and bad on the raptor motor. I heard of things that they are shooting rods and mechanic told me to stay with stock cam on the big bore kit. That just didnt make sense to me.

I am just looking for the ultimate set up for my raptor. I need some good advice from people who has kits or seen them run. Thanks
 
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Old Feb 16, 2002 | 06:43 PM
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I just ordered a 100.5mm JE 13:1 piston and midrange cam getting port job, doing all this I decided to spend the extra money to get stronger clutch springs plates and new valve springs. I am Taking Raptor next Saturday top get it all installed
 
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