Valve sizes

chodjinn · Post by **chodjinn** » Fri Jan 04, 2008 4:51 pm

If valves are 34.5mm and 40.0mm (didn't say which is which) - does that mean they are completely standard??

cheers

kokkolanpoika · Post by **kokkolanpoika** » Fri Jan 04, 2008 9:17 pm

chodjinn wrote:If valves are 34.5mm and 40.0mm (didn't say which is which) - does that mean they are completely standard??

cheers

Yes..

Big valves are 41,4mm and 35,5mm
Ultra big valves are 43,1mm and 37mm or 38mm depends of valve stem diameter..

Post by **Coops** » Sat Jan 05, 2008 11:41 pm

im stg3 heads i got
Inlet= 41.47mm Exhaust=35.57mm

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