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Jack of All Trades..
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145 Posts
Discussion Starter #1
Has anyone installed 1mm oversized valves in there motor? Can the existing valve seats be cut to fit the larger valves or do the valve seats need to be replaced?

I was originally told I could cut the existing seats with no problem so I ordered the Ferrea 1mm oversized valves now there seems to be some question but I can't seems to find any supplies for the larger valve seats.

Any help would be appreciated.
Jam
 

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living the life
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2,544 Posts
i've had it done before to a golf . all they do is remove old seats and maybe valve guides depend on if they the worn or not the same as valve stem diameter. then they machine the head , fit new seats and fit new valve guides . after that they machine the seats to suit valves and put it all back together . it dont take them that long to do it(well not all day) . but if you gonna do that , then have the ports made bigger and polished aswell .
 

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Jack of All Trades..
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145 Posts
Discussion Starter #3
So does anyone know where I can get 1mm oversized valve seats for the RB25DET neo?
 
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