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- In Stock Items. Ships Today. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Edelbrock RHS LS Bare Race Blocks 54903U-904

Engine Block, Aluminum, 6-Bolt Mains, 4.120 in. Diameter Bore, Standard Deck, Raised Camshaft Location, 1-Piece Rear Main Seal, Chevy, LS, Each

Part Number: EDL-54903U-904

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Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Estimated Ship Date: Monday 10/19/2026 if shipped by air