replacement blocks

[Mark_C]

Can't explain that event. One would think that any engines left over at the end of production for a specific year, assuming they were not continued into the next years production, would be made available to the service group as crate engines. That allows the engine plant to charge the service group the cost of these engines as well as any other that were purposely built for service during the production year and closes out the books, making GM management happy. Anything that can't be transfered to another GM group has to be written off as scrap and results in a loss to the engine group.

Can't even imagine the process of walking into a GM dealer in 73 or so and ordering a complete CRR coded LS6, and assuming all the originally available crate engines were used up, having GM build one and still getting the correct casting numbers and everything else, but with current (at the time) casting dates. Maybe the answer is because it was an LS6, and not a more common engine like an LT1, or L48.