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Old 06-24-2014, 07:41 PM   #199
Pete
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Join Date: May 2010
Location: Wa.
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Default Re: Boring a flathead

Quote:
Originally Posted by Tom Walker View Post
Why does moving the valve head make any difference? if your not moving the stem in relation to the cam, the timing will remain the same wont it?
The valve timing to the engine will remain the same but the angle of the valves between the 2 banks changes. (bank separation) Therefore, the bank separation has to be changed on the cam.
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