well the head is now off. we have managed to get a self tapping screw from underneath and it doesn't leak at all with brake cleaner in the water jacket.

looking in the water gallery there is a defect area bad casting and a piece has broken away, so im going to screw in the self taper with jb weld all over the screw, then fill and smooth each side of the screw with jb weld.

I have ordered 28lb of hardblock aswell so il have the option to give the base of the block a layer if I want to.

also gonna rering and new mains/big ends while were there they have done 15000 hours so done well imo.