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The Arias 10-Liter is an engine different from all other Chevy derivatives due to its cam location. You've heard of "raised cam" engines in the past, but in a GM Rocket block or Merlin big-block example, the cam is raised only .300 or .400 inch. Here, the cam is raised 6 inches! This clears the way for both a giant stroke and less valvetrain harmonics due to much shorter pushrods.