Just ordered supertech valves and guides from fcp.
I noticed that intake are 6.95mm stem and exhaust are 7mm
Guides for the same valves have an internal diameter of 7mm
Does anyone know what the tolerances are and what needs to be done to the guides on the exhaust side to be matched?
I notice that on audi original specifications they have 6.97mm inlet and 6.94mm exhaust
Sent from my SM-P550 using Tapatalk
I noticed that intake are 6.95mm stem and exhaust are 7mm
Guides for the same valves have an internal diameter of 7mm
Does anyone know what the tolerances are and what needs to be done to the guides on the exhaust side to be matched?
I notice that on audi original specifications they have 6.97mm inlet and 6.94mm exhaust
Sent from my SM-P550 using Tapatalk
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