The RHS Vortec & Pro Torker Vortec are very good value>> http://www.competitionproducts.com/Cast-Iron-GM-Vortec-Heads/products/1262/
Only the valvespring requirements, otherwise no difference.orangechronic said:the rhs heads from comp. products on the above link, are these designed for roller motor? isent there a difference in parts the heads are assembled with for roller/ non roller?
ain: ain:bigdog7373 said:How about these? http://www.jegs.com/i/Patriot-Performance/723/2169/10002/-1?parentProductId=1250658
And they're aluminum!