73 340 duster thermoquad spacer ?
Some possibilities for the thick gasket:
- Base gasket (open): Chrysler 3879786, Fel-Pro 1902, 60273, McCord 66-0144, Victor-Reinz G14589 (G26662 for 1971-1972), Rol CM55011 (CM55256 for 1971-1972), Walker G897, Mahle/Clevite G14589.