My World is currently back at World for inspection. I had an oiling issue which ended up in the loss of 4 rods, 2 pistons and 2 bores on the first pass. It appears to me to be a machining error but, I could be wrong. My fingers are crossed on the customer service. Waiting to hear back. The only other issue was there was a lot of clearancing needed for the pushrods with the offset rockers. Also, be careful of the height of the lifter bore bushings. I had a learning experience with those.