312 Oil Weight


http://forums.y-blocksforever.com/Topic139576.aspx
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By Atholian - 7 Years Ago
I just bought a 1958 wood boat with a 312 in it. I would appreciate any advise on what oil weight would be best to use in it. I have read different opinions and could use some sound advise. thanks
By Rono - 7 Years Ago
I've been running 10W-40 with high zinc content for many years. I don't think a boat application would be any different, but others may have different opinions.
By NoShortcuts - 7 Years Ago
Atholian.  Click the link below to access a thread some eight months ago that starts out questioning what break-in oil to use after an engine rebuild, BUT covers several issues related to oil selection for use in a vintage FoMoCo y-block.  I think this thread will answer your question and more.

http://forums.y-blocksforever.com/FindPost134700.aspx

Hope this helps!  Smile
By Atholian - 7 Years Ago
Thanks. that is what another thread on a site recommended
By Atholian - 7 Years Ago
great. will check it out