Small Block & Big Block Chevy Specific - vortec heads

im helping my dad put together a motor for his 66 p/u so far we have just a 383 shortblock put together. hes wanting to keep costs fairly low, so i suggested a pair of vortec heads to him. anyone know the best place to buy these nowadays. it seems that a couple years ago you could get a pair with screw in studs and z28 springs and machined for the extra lift for right around $550 to $600. Anybody have any ideas or any other head suggestions.

Well, i believe Summit Racing still carries a set for 650$ with the workd already done. But at that price you can get a set of better aftermarket heads.

Make sure to get screw in studs.I pulled one out with a 256 xtreme cam on a fairly new set I bought from jegs.Compititon products use to sell vortecs also try this

http://www.dfwss.org/smf/index.php?topic=10178.0

Make sure to get screw in studs.I pulled one out with a 256 xtreme cam on a fairly new set I bought from jegs.Compititon products use to sell vortecs also try this

http://www.dfwss.org/smf/index.php?topic=10178.0

Dang it, just bought a set of gm vortecs from summit and didnt get the screw in studs. What are the specs of the 256 extreme??