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Camshaft Sync Pickup Kits

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Holley Chevy Camshaft Sync Kits 556-121

Camshaft Sync Pickups, Hall Effect Sensor, with Bracket, 1/4 in.-20 Magnetic, 0.600 to 1 in. Raised Cam, External Dry Cam Drive, Chevy, Big Block, Kit

Part Number: HLY-556-121

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026