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1999 Chevy Corvette

...The REV valves are essential in providing the impressive flow and reliability these heads allow thanks to super strong swirl-polished 2.055 intake (PN SL1175) and 1.60 exhaust (PN SL1168) valves.
1999 Chevrolet Corvette - Unlocking The Combination - Tech

 ...The REV valves are essential in providing the impressive flow and reliability these heads allow thanks to super strong swirl-polished 2.055 intake (PN SL1175) and 1.60 exhaust (PN SL1168) valves.  View Related Article

 

 

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