It begins again - 512 Stroker

We dyno tested a "reproduction" type 440 this summer where the owner had spent a chunk of money rebuilding the original cast iron heads. Once the engine was on the dyno one of his numbers matching heads sprung a leak. The heads had been completely rebuilt and had cost more than a new set of aluminum heads but that didn't keep the 50 year old cast iron from cracking. He had to go find another correct casting and have all the work redone.