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Old 04-09-2018, 05:22 AM
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SC/397 SC/397 is offline
Join Date: Feb 01, 2010
Location: Michigan
Posts: 974
This picture shows where I added the extra oil drain back holes in the valley area. I drill them and angle them towards the cam at each lobe. The ones through the valley are 3/16" with a chamfer and the ones at the back of the block are 5/16" and I make a little oil trough to help direct the oil to the holes. This block will get the interanl oil line as well.
383 by Rick Jones, on Flickr
3832 by Rick Jones, on Flickr
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