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Old 11-06-2010, 11:26 AM
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It won't work

Originally Posted by Bad Rat
Is is Ok to use Roller lifters with a flat tappet cam ? just askin,,,,,,,,,,,
The reason the flat tappet cam will not work with roller lifters is because the cam lobe profile is totally different on roller lifter cams and flat tappet cams , and would change cam timing and dwell drastically , So the short answer is NO . You cannot run roller lifters with a flat tappet cam or vice/versa .
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