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0504htp Lt1 12 Z

The valves are lapped to ensure that they are seated properly. Exhaust valves should meet the seat in the middle third of the face for street cars, so that they do not get burned up.
Crate LT1 Engine - Displacement On Demand

 The valves are lapped to ensure that they are seated properly. Exhaust valves should meet the seat in the middle third of the face for street cars, so that they do not get burned up.  View Related Article

 

 

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