Eddy head question

MiradaMegaCab said

Anyone having issues with the ARP studs restricting oil flow?

The Edelbrock head flows oil thru the head bolt passage, as being the ARP studs aren't necked down in diameter (like a head bolt is), I use ARP head studs along with one ARP head bolt in the oil feed location. ARP tech line is aware of this restriction and advised me to use one head bolt in that location.

What do you guys think about this?

ARP head bolts dont restict oil due to the bolts reduced diameter.

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Im going on the record to say Its a very bad idea to mix studs and bolts together, especially on a SBM. You only have 4 bolts per cylinder to seal these things and thats just a blown head gasket waiting to happen.

The bolts/studs are fine, they dont restrict the oil. I have run studs and bolts on these upto 8000rpm without any rocker oiling issues at all. Plus if you really feel like it is restricted, use a small ball end carbide on a 4" shaft and go in a cut a small groove from one oil hole to another. But for Mopar Gods sake, dont mix studs and bolts.