Vortec Cylinder Head Question
So, I have heard a lot of talk about using Vortec cylinder heads on "Crate Killer" engine packages for IMCA mods. I haven't seen much/any talk about those heads on here.
Does anyone have any experience running the stock Vortec heads and if so what casting numbers? Are any casting numbers better as far as performance and resistance to cracking? What about the GM performance heads or the EQ Vortec heads? Also, if anyone has any info on what a any of these heads weigh?
Thanks for the help.