I flew to Indiana today to pick up my new Genesis block. Tim Mcloughlin gave me a tour of the factory and was a very helpful. Tim expects better availability with improvements to the latest castings. Early blocks frequently failed Genesis' standards which limited production. Many "C" code blocks were sold to skilled engine builders who salvaged the blocks but may have unfairly labeled
all Genesis blocks as requiring a lot of machining. The "A" code blocks available from Genesis are fully machined and ready to build.