2G Manley custom valves

[CDgr97GSX]

Hi guys. I need some advice with my head rebuid. I got from a guy in UK a set of Manley custom intake and exhaust valves. I knew that are 0.5mm oversized and 109.7mm total length but I did not know at that time what's the valve stem diameter, i thought is stock size, so after i got them i start measuring and i figured out the valves stem diameter is bigger then stock. The part number for the valves is 11281 and 11250 and the stem diameter is 6.96 and 7mm, with stock valves being 6.54/6.57mm.
The question now is how can i fix this? The only way i can think about si to machine the guides inner diameter to fit the valves, but i wanted to ask before i do anything. Thanks

 

[ThunderChild]

Typically guides are knurled for clearance/tolerance and lubrication of the valve stem, so if you bore the ones you have out, might want to consider instead installing new guides with the correct sizing for the stem, or have to have the ones already in there re-knurled, and idk if many places do that nowadays.

 

[CDgr97GSX]

Typically guides are knurled for clearance/tolerance and lubrication of the valve stem, so if you bore the ones you have out, might want to consider instead installing new guides with the correct sizing for the stem, or have to have the ones already in there re-knurled, and idk if many places do that nowadays.

The problem is i don't know if I can get valve guides with the inner diameter i need, i think all of them are for standard stem size. Here is what i found on manley website.

 

[ThunderChild]

Could try contacting Manley to see if they offer the correct guides or talk to your machinist to see what they recommend.