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Intake Spacer Kits are a must for all tall deck blocks. RHS Intake Spacer Kits are CAD designed and CNC-billet machined to the most exacting tolerances to fit a 9.750" deck height. A lightweight scalloped design provides rigidity and function without adding significant weight. Intake Spacer Kits include required hardware and gaskets and are available for all three cylinder styles: cathedral port LS1, rectangular runner LS3 and raised rectangular runner LS7.