quote:Originally posted by accobra:
Remember years ago .. the drag racers used to use a new block in the tow vehicle to season it prior to machining it for race prep ..thats why I would check it again.
I used to work at an authorized Ford remanufacturer in Edmonton, Alberta, and I have bored, sleeved, and decked hundreds and hundreds of Ford V8 blocks.
The oil patch went through these motors like salted peanuts, and of course returned the core that they replaced. Often, that core was an engine that we had already rebuilt.
My observation was that a "new" block took as many as a dozen passes to get its decks square and flat, whereas the slightest kiss with the surfacer made a previously remanufactured block clean.
My conclusion was that the cast iron moved around quite a bit as it was seasoned, but once seasoned, it was very, very stable.
Aside: operating the boring bar in a production line environment is the world's most aptly named job.
