Stock 5.7 Head upgrade?
Stock ported options:
TEA (which I have and am very happy with - great customer service great product)
Advanced Induction
Texas-Speed
Livernois
WCCH
Chris Frank
Greg Good
Larry Meaux
Aftermarket options:
Trickflow
AFR
PRC
MAST
There are others, but that's the list I'd start with for what you want.
One of the best budget options is to get the Trick Flow "As-Cast" 220cc heads from Brian Tooley Racing with Brian's hand porting, upgrade to Powdered Metal Guides (to run stock rockers - trust me, this is what you want), and hollow-stem, turned-down LS3 intake valves. Lightweight components is what you want. That comes out to a little over $2k and makes damn good numbers and includes a new casting.





