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Getting my block, heads, crank, etc. back from the machine shop on Thursday and wondering what the I should do first. I've read about guys using soap and water and cleaning the block from top to bottom, also chasing all the threads with taps. Good idea or not needed? Also what is the best thing to spray on the bores, crank, etc while it is being put together or just sitting in the garage.
 
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I used WD40 on the bores and crank, clean the block well. Also clean the crank with soap and water, make sure you clean all the oil passages with a pipe cleaner or similar. If you have the time I'd chase the threads.
 

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Just like anything, the more prep work that you do, the better the finished project. I would do all of the above and for sure chase the threads. I think it might be an hour or two well spent.

1966 Coupe - GT - 4 speed
http://www.workforcescc.com/pdf/Side4.jpg
 
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I always stop by the wishy-wash on the way home form the machine shop. The high pressure soapy water soes a good job. Especially try to get some blasts through all the oil passages and the water passages. There is a lot of metal dust that gets everywhere inside and out. As soon as yoru done, *liberally* spray down the cylinder bores (and any other freshly machined area) with WD40, as they will rust within minutes. Go ahead and chase all the threads...if you don't, you might get inaccurate torque readings.

Keep the shiny side up and the greasy side down.
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1970 Fastback, 4V 351C, various colors with black interior
 
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