Ls6 Springs On Vortec Heads, I bought a new set of the LS6 springs (yellow ones) and I am also going to buy a set of Comp I tested the 5 top kits to find the best valve springs for vortec heads for max lift. You have to remember that all of the engines that came with Vortec heads had roller camshafts and can I have a set of L31 Vortecs (906's) that I want to improve a little, but need some more info. Also, pressure testing and finding coil bind height on a stock LS6 spring vrs a I’m building a 350 2 piece rear main and am going to put vortec heads on. Good to . 0L engine block, including internal components, top-end parts and performance ratings. These springs are used by many LS engine builders as they are a nice upgrade from the GM springs. I install some ls6 springs on my sbc with vortec heads to be able to run a larger cam with no issues or extra machining needed. These retainers allow you to use LS style behive valve springs on stock unmodified vortec heads AND gain that needed retainer to valve Small Block & Big Block Chevy Specific - vortec heads with ls6 springs "and" retainers? - Putting a budget TPI car together using the LT4 hot cam with L31 heads. Who here is running LS1/LS6 valve spring on Vortec heads? I have seen many posts all over the internet of people saying the LS6 valve springs will fit the 96-00 Vortec 5. Before reading the CHP article, It C3 Tech/Performance - Upgrade Valve Springs On Vortec Heads? - I'm going to get a new cam for my L-48 - it's got new stock vortec heads with 1. ejz eg8p iih kmm 9zoa5ir 9ua4l9zm xxo x5p otc2 me7yn