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− | {{newarticle1}}
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− | ==Overview==
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− | Basics of ID'ing camshafts.
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− | ==Roller vs. flat tappet==
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− | Telling one from the other is relatively easy. The roller cam will have much more rounded lobes, like the big end of an egg. A flat tappet cam will be much more pointed- similar to the small end of an egg.
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− | Below is a hydraulic roller cam, the rounded lobes are readily appearant compared to the flat tappet cam to the right of it.
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− | [[File:Roller L ft R.jpg|thumb|400px|left|Chevy hydraulic roller from a LS7, gundrilled]] <br style="clear:both"/>
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− | Often roller cams will be made of steel and will be shiny instead of a flat black color of a flat tappet cam caused by the wear treatment it is given.
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− | ==Warnings==
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− | Roller cams cannot use flat tappet lifters, and vice versa. Besides the mechanical interference between a flat tappet and a roller cam lobe, the timing events will be skewed much to badly for this to work. A roller lifter on a flat tappet lobe would have very little duration, a flat tappet on a roller lobe would have way too much duration, even if it could work without mechanical interference.
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− | [[File:Ft vs roller.jpg]] <br style="clear:both"/>
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− | [[Category:Identification and decoding]]
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− | [[Category:Engine]]
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− | [[Category:Camshaft]]
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− | [[Category:Undeveloped articles]]
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