Thank you pishta for the reply to my querie but my question is ARE THE HiPo covers with the glued on fins compatible to fit & work over the rocker arms of my NON HiPo 273 motor in my 66 Barracuda??? . Also, my Barracuda motor original color is ORANGE, not Red. My 66 Dart 270 & 64 Dart GT Convertible both have the 273 in RED. Any help is appreciated. Thank you. Eric