273 CI

According to Barrett Jackson (insert eyeroll) they had one. The page is still up, no pictures, but the VIN is still there.
1967 PLYMOUTH BELVEDERE II 2 DOOR HARDTOP - - Barrett-Jackson Auction Company - World's Greatest Collector Car Auctions
ENgines available in the Belvedere line . This is a page from the factory ordering information posted on the Hamtramck Historical website. No 273-4 available in that model. https://www.hamtramck-historical.co...ok/1967/67_Belvedere_features_options0008.jpg

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