Re: Antifreeze under valve covers
I can't think of any way a leaking intake gasket could allow anti-freeze to get under the valve covers.
I also can't think of any way a leaking head gasket could allow anti-freeze to get under the valve covers.
If it's not the head bolts leaking, the only other thing I can think of is a crack in the head so having them checked is probably the best way to proceed, or you could first try removing each head bolt, cleaning and then resealing and see that brings a different result.
How long did it run and did the cooling system get up to pressure when you later found anti-freeze under the valve covers?
69 Camaro Z/28 RS, original Azure Turquoise, M21 & 3.73 12-bolt posi. NOM 406ci, AFR 210 heads, Straub hyd. roller cam & Dynatech 1-3/4" > 1-7/8" headers, QuickFuel 750 Annular. Photos at:
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