oversized valves

[keltalon]

ferrea advertise that their valves are direct drop in. what about the oversized valves 1mm do the head have to be machined to accept the 1mm oversized valve. just was wondering?

 

[TurboAWD92GSX]

you have to grind the valve seats and hand lap the new 1mm oversized valves into your head. costs about 100 dollars to do all 16 valves.

 

[keltalon]

Originally posted by TurboAWD92GSX
you have to grind the valve seats and hand lap the new 1mm oversized valves into your head. costs about 100 dollars to do all 16 valves.

thanks for info