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Slotted Bypass Nipple Set1965-1972 Big Block Chevy Engines(2) 3/4 in. I.D. Hose x 1/2 in. NPT x 1 5/8 in. L FittingsStraightZinc Finish JEGS 555-90773 Bypass Nipple Set is OEM-style reproduction just like the original, it has the same angle, finish, and function to help complete your restoration. These fittings are designed to thread into the water pump and intake manifold and provide an attachment point for the bypass hose.
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