prior to Z06. The starting point for the engine build was the LS1, which is MTI’s specialty. When they bored and stroked the engine to 422 cubes, or about 7 liters, while utilizing many Z06 parts, including LS6 intake and heads, the Z07 moniker made sense.
   One shouldn’t ask MTI for an identical Z07 build. "It’s kind of a one-off motor. I’m like their test bed," S.W. explains.
   The need for speed pushed the Z07 concept past boundaries. S.W. reveals, "Every time we modified something, we created a new problem. We were experimenting a lot."
   One example is the solid roller cam, a custom grind which S.W. and MTI are keeping secret for now. "With the solid roller, we had problems with the lifters making

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