... here are our Tiger heads with the insert ... it has turned out really nice and the surface is seamless ... it is a bit tricky blending the inserts by hand, as you are literally hovering over the alloy seats with a carbide-burr ((

)) but it is a slow process ... and based on the results of the others engines we've seen using this mod, i see no reason why it wont work as intended for these heads ... and it also makes for a very nice "repair" for any heads that have had any issues in this area, regardless of make ...