Quote:
Originally Posted by WayFast84
Gm vortecs stock are good for .480 lift. I would either go with gmpp or etecs. I think rhs made a vortec head as well but didn't flow very well.
I highly reccomend buying them with machine work done unless you go used. Screw in studs are a must.
|
"only good for .480 lift" What does that even mean?
"Screw in studs are a must." If this is true then why didn't GM put them in there from the factory and why are there countless 10-15 year old Vortec motors currently running around just fine without them?