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FLAT TAPPET, HYDRAULIC ROLLER ????

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Old 10-17-2007, 11:52 PM
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BlackBetty93GT
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Default FLAT TAPPET, HYDRAULIC ROLLER ????

what is the difference, what does it mean....which on is like stock?

I know it is a dumb question, but im learning.....
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Old 10-18-2007, 11:38 AM
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creekrat
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Default RE: FLAT TAPPET, HYDRAULIC ROLLER ????

Roller should have been stock. Roller lifters have a "wheel" that rides on the lobe of the cam. flat tappets are just that, flat. The bottom of the lifter is flat and that is what rides on the cam lobes. The roller creates much less drag and friction and also allows for steeper ramp angles on the cam lobes
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Old 10-18-2007, 01:15 PM
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BlackBetty93GT
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Default RE: FLAT TAPPET, HYDRAULIC ROLLER ????

ok thanks for the explanation
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