1986w250
Member
Does anybody know what grommets and breather caps will fit the knockout hole on a Mopar Performance cast aluminum valve cover? This is not the hole where you twist a breather or cap on and off its just the smooth hole.
My valve covers are from 2004/5, could that make a difference then?That same part number (without the Mancini MRE prefix) has been used on MP covers for at least fifteen years.
The grommets never fit that great anyway. I bought a pair of the cast covers twenty years ago and all they did was leak, eventually sold them and went back to stamped covers.
I bought a 74 Barracuda last fall that has the cast covers on it. I am tempted to keep them, but I really don’t feel like dealing with oil leaks over something so simple.