Search results

I have a set of vortec heads but thinking about scrapping them for a set of 23 degree GM performance heads. First off does anyone know the cc chamber size difference and cfm rating difference between the two after the vortecs have been worked. 2nd does the sy lower intake still have to be welded...

I have been reading alot of stuff posted about theses motors while i have been gathering the parts to put mine together. I noticed alot of the people who have been on here awhile say that the vortec swap is hard or shouldnt be tried by someone new to these motors. I just was wondering if...

So i have a set of heads with casting number 10235772. My question is are these vortec heads, and whats the cfm difference between these and the 98 and later Vortec heads? Also are the later 98 and new vortec heads alum or cast? Looked in the vault and all it said was that its a head from 96.