Im going to have to source a thicker head gasket,I only have as little as 035 on the sides of the dome,just rechecked cyl 1 and 6 with two different heads I have and both are too tight.I put 6 little balls of clay on each piston ...Seems my deck height is lower than I expected and just called shop that did all the block machining and found out they machined everything but didn't check deck height ???.