Are all 273 V8's the same?

66fs said
I have had so many virgin 66 and 67 Commando and Charger 273's I could not count them. Some with only 50,000 miles on them. All had domed pistons. I have never had a 275 hp D Dart 275 engine and have at least 2 sets of domed pistons and rods in the basement. Maybe the pistons were swapped in your cars when gas octane took a nose dive in the 70's or 80's. Or people swapped the Commando stuff onto 2 barrel 273's. That was what we did to my brothers 67 273 in his Barracuda.

I could see one or two. But all of the commando cars here have flat tops. Even this never touched car from the original owner. Could it be a 66 thing or a 4 speed thing. All of the cars here are 67 autos.

One original engine was removed and stored by the owner after installing a 340. it came with the yellow car. I have all the pistons Not one domed. I lost count of how many 273 commandos Todd and I have here. It would be mind blowing for someone to remove all the domed pistons from the engines here. These are commando cars and one Formula S coupe. All of them are E code