Tubing the block is for the LA small blocks. If I remember right the tube is 5/8s diameter, goes in the passenger side. U have to drill the block to accept the tube. U have to peen the tube with a lifter that u grind part of off to pound thru the lifter bore. Kim
The reason I asked was, I saw a lifter bore tube kit on ebay, that came with a bullet shaped peening tool to be driven down in the lifter bore to make room for the lifter. ''I assume. " ????
