uncle tony's garage gets called out by the roadkill guys

Here is the best advise for you all. Throw the pistons in the trash and get new pistons. They were junk when they were new and they didn't get any better in the 50 years they were in the motor. Tear the page from the DC manual and burn it. They were junk cast pistons for god sake. We just tore several 340's apart and threw every piston in the trash. I will be throwing 8 more out this weekend.