I was thinking the Mopar Muscle Magazines of February and March 2012 would have more information. Alas no. They have somewhat longer write-ups on the 361, 383 & 400 engines used in the contest but not much more detailed information. Some of the engines were pulled to 8,000 rpm......some survived and some did not. One engine broke so badly you could look into the exhaust port on the cylinder head and see the lifter valley, camshaft and lifters! The exhaust valve head was stuck inside the cylinder wall in the water jacket between the cylinders.