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4.6 4V OEM Camshafts Set, 56k MilesCame out of 56,xxx mile '03 CobraLeft Intake:YL7E-6A271-ABLeft Exhaust:YF3E-6A273-ABRight Intake:YL7E-6A270-ABRight Exhaust:YF3E-6A272-ABAs far as the specs are concerned, Ford states lift on all is 10mm (0.3937") at the
4.6 4V OEM Camshafts Set, 56k Miles
Came out of 56,xxx mile ’03 Cobra
| Left Intake: | YL7E-6A271-AB |
| Left Exhaust: | YF3E-6A273-AB |
| Right Intake: | YL7E-6A270-AB |
| Right Exhaust: | YF3E-6A272-AB |
As far as the specs are concerned, Ford states lift on all is 10mm (0.3937″) at the valve and 5.54mm (0.218″) on the lobes. Duration @ 0.050″ is right around 185 for the intake and 195 on the exhaust side, but those numbers sometimes vary by a degree here and there. As for lobe centerline, 114 seems to be commonly agreed upon. In addition, the cams raise intake valves with a 37mm diameter, and exhaust valves that are 30mm.
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