another question on 312

[Johnnydidd]

last engine I rebuilt was a flathead, the crank had plugs to be removed for clean out, does the 312 have plugs in the crank to remove for clean out?

 

[darrell]

no they dont

 

[Johnnydidd]

thanks, cleaning the holes just run a drill bit down and flush

 

[y'sguy]

yblocks are side oilers and have allen plugs down the side and in the front/side and back. I try to always remove them for a better assurance of clean oil passages. Count on destroying them in the process. But easily replaced. You'll be glad you did. You should get Charlie Morris' book btw.
Have a great engine builder here in the Tulsa areawho know yblocks and did mine if your lookin. Not to far for you.