Fiat / Lancia / Alfa 16V Turbo exhaust port size?

[kj16v]

Hi, please could tell me the diameter of the exhaust ports just past the valve seat area? I didn't think to measure it when I had the head off my Coupe!

[Guy Croft]

I could tell you this but before I do can you tell me what you want it for, so that I can be sure we're both on the same 'wavelength' in respect of what you're trying to do?

I suspect something to do with header size?!

G