Seller notes

KING ENGINE BEARINGS This listing is for a new set of King main bearings for large journal Chevy 262, 267, 302, 305, 307, 327, and 350s. P/N MB557SI (standard or oversize). The "X" suffix bearings have .0005" thinner bearing wall that provides .001" extra oil clearance; e.g. STANDARD X, +.010" X. Alecular material is used exclusively by King. It is an alloy of aluminum, tin, copper and several other elements. Because it is an alloy, it maintains its properties throughout its entire depth, delive...

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