The vent system on those valve covers are garbage. I pulled the vent tubes and if you look inside them they choke off to like a 1/8-3/16" hole. If you want to keep that location drill out and NPT tap the hole and install at least a 6an 90*. Or like I did weld on 10an bungs for a forced induction application. Or blow out your rear main seal under boost up to you lol. ASk me how I know.....
Being honest man. Holley valve covers suck... They leak oil right on the manifolds. They aren't casted correctly and the bottom portion of the valve cover doesn't have the correct lip to seal the perfectly. So I'm going to go on a whim here and say that china copied a bad design... lol
Do you have any videos on how to make LS wiring harnesses look as good as yours? Factory setup is a disaster!
Beautiful truck
❤ yes sir
The vent system on those valve covers are garbage. I pulled the vent tubes and if you look inside them they choke off to like a 1/8-3/16" hole. If you want to keep that location drill out and NPT tap the hole and install at least a 6an 90*. Or like I did weld on 10an bungs for a forced induction application. Or blow out your rear main seal under boost up to you lol. ASk me how I know.....
Don't send me anymore videos, your BLOWING UP MY PHONE!!!
The fact that you needed/wanted instructions for a set of valve covers is alarming considering you call yourselves an automotive business. crazy.
Being honest man. Holley valve covers suck... They leak oil right on the manifolds. They aren't casted correctly and the bottom portion of the valve cover doesn't have the correct lip to seal the perfectly. So I'm going to go on a whim here and say that china copied a bad design... lol