I rebuilt the head of Abarth 131 16v, if interested contact me, I also have an original but is much better the rebuilt beacuse the material use is alloy (al-li) 9000 series!!! Tested on 037 Rally Lancia evo.2; Gr.4 131 abarth, abarth 131 srteet, you can see the head in the fair of Padua or sending through the photos if interested. THE HEAD IS COMPLETE VALVE SEAT AND GUARANTEED!