Kevin Leitem
Registered User
After sonic testing the cylinder walls on the SC and mustang blocks. I learned that the mustang block has thicker walls. But there were still a couple spots that were only .080 thick. I talked to my engine builder about sleeving all six holes and going to at least a 3.9 bore. He wanted to see if I could section a block to see what was going on so he could chose the appropriate sleeve. So after searching for a shop that had a big enough band saw and many people looking at me as though I had a third eye , I finally found one to do it. Here are a few pics.