274/474 for stock 340

a little concerned about piston to valve clearance on the whiplash, talked to a rep and he said there''usually'' isnt a problem!isky 280 would require a torque converter change wouldnt it?

The car which is my Avatar had the Purple 280 grind. Motor was a stock 72 340 otherwise including intake, carb, and exhaust. Stock Converter also. I drove the wheels off it with 3:23's for a good year and it did not need a Converter. In fact, it started well in the cold and the idle was not bothersome at all. It only made me want something really radical lol...

True story and actual driver use.... It was no pig with gears in it but I guess you had to be around the car back them to believe it lol...

I will say however nothing beats a cam degree check and PtoV while you are at it....

If you want something nasty sounding in a Small Inch Mopar, stick a big Solid in it. She will hate you but boy will she get attention with it lol....

Good luck,
JW