Chevrolet Corvette Zr1 Ls9 Engine Specifications Ls9 Block
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One critical issue, of course, was increased stress placed on the top end; the LS9 has to deal with a 30 percent increase in cylinder pressure created by the forced induction setup. "The pressure is literally trying to lift the head off the block," explained Guard. The team developed a new gasket with four active layers for the LS9. "We needed more 'spring,'" Guard said. Each layer allows for 5 microns of movement, which covers the 18-20 microns of movement that were needed under this pressure. Final validation testing with the gasket, Guard said, was "perfectly uneventful." View Related Article
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