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Originally Posted by 1970 CST Short Wide
Anybody know what the difference would be other than price????
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Morel makes a cheaper lifter and a more expensive version. The cheaper is made from 12L15 or 1215 material. The higher end lifters are 8620. How much that matters, I am not sure.
You may want to check the RPM limit though. I seem to recall the lower end lifters having a 5500 RPM max versus 7000 or something for the higher end version. I am not sure how much you go to redline, but almost any LS/LT engine will easily go beyond that 5500 RPM limit if that is accurate.