School me!

You can also look here,

http://www.hotrod.com/techarticles/engine/hrdp_0812_1100_hp_pump_gas_mopar_b_motor/index.html check this out wow block showed signs of cap walk then added a chenoweth main girdle problems solved


A little quote in the same read,

"A lot of this engine was based on a built 383 I had in my car for a long time," Bretzing says. "The former incarnation had a D-2 supercharger and made 760 hp, and I drove it back and forth to work all the time. It was very, very reliable. It had KB hypereutectic pistons, stock rods, a stock crank, and a Comp roller. I beat the crap out of it for years."

This paragraph above was copied from the article. It had a Charger on it!