Quote:
Originally Posted by Purplt1
So what usually goes bad around 10-20k miles? I'm currently getting ready to install my tsp vvt-2 kit and tsp heads. I'm just using the ls7 lifter and upgraded to the Che trunnions.
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Lifters...the LS7 were not designed for the setup you are going to put them in. They were designed around very mild lobes, titanium valves, and light springs. Will they work, yes..but the life you get out of them will depend on how long the engine spends above 6k rpm. I wouldn't run them with a cam that requires 7k rpm and dual valve springs. Will the vendor you bought them from say they are fine...sure will, but I can pull up page after page of LS7 lifter failures that show otherwise.