The engine was already sitting on an engine stand, and the heads came off the 396ci big-block after twisting some crusty old bolts out of the heads. Arrington had already warned us that it wasn't a good idea to put all these high-performance parts that would generate more heat and pressure onto a tired old block. Well, Arrington had raised a very good point, and it was a decision I didn't even have the chance to make upon examination of the No. 1 piston. There was a good-sized hole right on the ring land of the piston.