The Morris is a side valve, they are low enough compression as it is unless a farmer had been using it with Vaporising oil or as you might call it Kero or Paraffin, but my bet is one of two possibilities, the head is warped, not unusual, or that the head has already been skimmed (too much) and now the valves are kissing the head so fitted 2 head gaskets! Only way to know if the head has been skimmed too far is to get another Morris owner with a C8 or C4 to measure the height of their head.
Pretty sure there were no domed pistons on these side valves, only ever seen flat tops.
regards, Richard
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Richard
1943 Bedford QLD lorry - 1941 BSA WM20 m/cycle - 1943 Daimler Scout Car Mk2
Member of MVT, IMPS, MVG of NSW, KVE and AMVCS
KVE President & KVE News Editor
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