vortec heads and high lift springs

[Silent viewer]

ok this is my fianl attempt to try to use my vortec heads on my efi motor. if i use gm spring kit 12551483 will i be able to run the LT$ hot cam with no other mods? i read somewhere it will work but now i cant find it. this is the info i have on it


M HOT CAM SPRINGS CAPS SHIMS & KEYS FROM GM PERFORMANCE FOR LTI/LT4

WILL ALSO FIT VORTEC HEADS WITH NO MODIFICATIONS.

GOOD TO .510 LIFT. .525 LIFT WITH 1.6 ROCKER ARMS

 

[Silent viewer]

nevermind, i give up! im going to just build the motor with the stock vortecs and order custom order a cam to work with my setup.

 

[buckola]

I just traded my 70 GMC for the 79 El Camino that brought me to this forum. The GMC had Vortec heads on it. It seemed to run fine with nothing more than some detonation under a load or up hills. Well, the new owner called me to let me know that it didnt run for 20 miles when it dropped a couple of valves. It seems that the GMC block may have been decked at one time creating an apparent clearance issue with the valves. The new owner was cool about because I gave him all the old parts to put it back to stock.