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The LT1 uses one knock sensor per cylinder bank to retard timing if needed. On higher-mileage engines, it is possible for piston slap or noisy valves to trigger the knock sensor and thus lose power. The LT4 sensors (Napa PN DKS206) and module (GM PN16214681) are less sensitive than the stock LT1 sensors. Just tell the parts guys that you want knock sensors for a '96 Grand Sport Corvette.

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