My 292 is a real early one,'63 or '64, has the 7/16" flywheel bolts & uses a huge (1" I think) bypass hose on the t-stat housing. The NAPA P/N's for my t-stat are 532080 = 180 deg. & 532060 = 160 deg. The gasket # is 35063. Hope this helps. You most definitely want one that covers the entire hole, even if its loose & 'offset'.
Doug
