Some of you have spoken about boring 331's. What is the maximum bore any of you have done or heard of that was successful? Did the block structure change in 1956(other than the transmission mounting) when Cadillac bored it to 365? I have a 1951 that will be rebuilt. I am curious about possibilities. I know that while the stroke was constant until 1959, heads and camshfts changed with the years. Dr. Dave Modesto, CA
Do a search for Cad info. here on the HAMB. There was a pretty thorough discussion covering the early motors a couple of years back...