Originally Posted by 1969chevyss
I meant roller rockers. Well I found a set of vortec heads for 175 bucks that has already been rebuilt. I just wanted to know what am I looking for to make sure these are vortec heads and if I get them would I need to do anything else before I bolt them up? Will I still be close to buying a set of aftermarket heads if I get these for 175.
Good info, 1986c10.
Be careful when buying "Vortec" heads. What you want are the casting number 10239906 (casting has one large single hump on the end of the head) or 12558062 (casting has 3 small humps, aka sawtooth) heads from a 5.7L L31 truck engine. Some guys call swirl port heads "Vortec" heads, and in a way they are, but there not the 'good' heads.
If you have ANY doubt, post them here and we can all take a gander. I wouldn't want to buy sight unseen, especially from a private seller. Better to have the sale depend on them passing an inspection done by a qualified shop- on your dime.