These head gaskets are made exclusively for Lambretta upgrades, with the correct stud spacings for the small block RT 195cc kit. These have been checked to make sure they are correct, and can be used in conjunction with longer stroke / rodded cranks, essential for setting the correct squish. 
 
Available in 0.5mm, 1mm and 1.5mm thicknesses, please choose from the drop-down menu
 
2mm, 2.5mm and 3mm are also available on this website here: