1976-1978 Plymouth PB300 7.2L V8. 1976-1978 Plymouth PB300 6.6L V8. EVERY PART FOR THE REPAIR -- Fel-Pro gasket sets include every part needed for the repair unless otherwise noted. Position: Lower. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.