Cometic advise to use a head gasket with a bigger size than your bore. For example, for an engine with a 73.5mm bore, they advise to use a 74mm head gasket.
The head gasket on our website are 0,030" thick. If you need another size to suit your volume and compression ration, please contact us at contact@dimspeed.com
Size available on the website:
72mm > The compressed volume is 3.00cm3
72.5mm > Engine up to +60 (1330) - The compressed volume is 3.05cm3
73mm - The compressed volume is 3.08cm3
74mm > Engine 1380 - The compressed volume is 3.18cm3
Careful, somes copies are currently sold on the market as Cometic. All Cometic head gasket are packed in a Cometic packaging as shown on the picture.