03-06-2020, 01:10 AM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
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The reason why the 1968 427 Cougar GT-E has a hydraulic cam instead of a solid cam was to meet increasing Federal mandated emission standards. It was found that if owners did not keep up with maintenance, excessive valve lash would increase said emissions. So the decision was made to take away the maintenance requirement. This resulted in a loss of 30 HP.
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