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Old 11-28-2020, 08:19 AM   #31
KULTULZ
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Post Re: PCV systems on the smallblocks

Quote:
Originally Posted by 5851a View Post

It wasn't the best system in cold climates. There was a mesh screen under it and short drives in sub zero would freeze it into a block of ice. Blowby would start oil leaking from all the gaskets and seals.
Now we are talking 5.0L EFI correct? Was your 5.0L HO, STD or LT? How far north were you when the system froze?

Now for the earlier road draft design.

Two SBF tubes shown below, one manifold mount and the other rocker cover mount (1965) -
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