COMP Cams 5620 Main Bearing Spacer Kit, Steel, 350 Crank/400 Block
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COMP Cams Bearing Spacer Set allows a 350ci Chevrolet crankshaft to be installed in a 400ci block. No machine work is required for installation. Simply snap them in and install standard 350 bearings. You save the cost of buying thicker more expensive bearings.