Gasket sets. Pre 1985 and later than 1985?

Yes, and You’re Welcome! think the magnum block deck height is listed as 9.58, IIRC… UEM states that theKB-107 may protrude out of the block. That’s good for a 10:1 plus 360 with magnum block with LA 340 or 360 heads and Mr. Gasket 4.14 x .037 Pro-Seal head gaskets. Above deck flat top pistons are how the ‘68-Mid’72 340 made close to 10:1 compression.
UEM Pistons