340 Wedge?
The 340 72's also had a lower comp. ratio, Thermoquad carb, electronic ignition, blue engine paint,and a one year only dual snorkle air cleaner with a " flapper " valve on the base. I think that all H.P. mopar engines in 72 had this air cleaner, not just 340's. Later ones had cast cranks as well. Oh, and the rallye centers were different as well. My ex- Demon 340 had a big snorkle scoop and metal emblems instead of decals as well as the std. guage cluster, ribbed trunk lid and the stick out side markers, and no Demon emblem on the tail panel just a dodge emblem on the trunklid. It was very original and was a mid year 72 with a cast crank. I still have a 71 340 Duster that is loaded with the 340 callout on the hood that is quite rough and missing a lot of parts. It's Curious Yellow, 4-speed, that I can't decide what to do with it so I keep it around just for reference until I find someone that is serious about restoring it. It also has the smooth trunk lid. I've seen late build date 71's with the ribbed trunk lid also. just my 2 cents. :mrgreen: