Reproduction “340 FOUR BARREL” Red Engine I.D. Plate/Pie Tin. These were placed on top of the OEM Performance Air Cleaner Lid and held in place by the Wing Nut. NOTES:- (1) The OEM used “Red” Pie Tins from 1967 to 1969, while the “Orange” Pie Tins were used from 1970 and on. (2) Both Dodge and Plymouth used the “FOUR BARREL” term on the 340 Engines.