Join Date: Mar 2000
Location: Newton, IA U.S.A.
The new Vortec style heads are awesome. Commonly known as "the best bang for the buck." I read in an article from one of the high performance mags, that these heads, even with 1.94/1.50 valves, flow better than the World Products Sportsman II heads with 200cc intake runners, and 2.02/1.6 valves! There are two drawbacks to the Vortec heads. You have to run a different intake. I just happen to have an Edelbrock catalog handy. PN#2116 is the Performer. It is basically a stock replacement performance intake. It has an rpm range of idle to 5500 rpm. If you want the high rise dual plane Performer Rpm, Pn#7116. It has an rpm range of idle to 6500rpm. The last time I priced the RPM, it was about $175 through Jegs. The other drawback is if you are running a 400 small block, you have to have steam holes drilled. They also don't have screw in studs. I hope I have been of help.