Don Terrill’s Speed-Talk

My point is that the high nickel blocks don't exist. It is nothing more than an urban legend. People are paying extra money for these blocks and they aren't getting anything special.

Would I be correct in assuming that unless the information comes from GM that you are willing to ignore an industry wide accepted standard test method that positively proves that the before mentioned casting contains no nickel or tin? Cast iron must contain between 2.5 and 4% carbon and between 1 an...

Small block Chevy high nickel myth busted! I work in a materials lab for an aerospace company. I removed a chip from a casting seam line and performed an SEM/EDS analysis on my 74 350 block casting # 3970010. Numbers under the timing cover are 010, 020, and 509, and discovered that it contains no me...