[Barry_R]

I put it in the response - 1.340. I'm trying to find you a package that will keep the pressures safe for that non-billet core and still maintain control. Reducing the retainer size & weight is a way to cheat on the pressures a bit. A 1.900 original height against a 1.811 target ain't that bad - a -.050 retainer or keeper and a single .030 shim gets you right there....