Chev 454 Gen 6 ,4 Bolt GM Performance 454 Bare Engine Block # 19170538 12561353 Rate_Special For proper alignment

For proper alignment

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Chev 454 Gen 6 ,4 Bolt GM Performance 454 Bare Engine Block # 19170538 12561353 Rate_Special For proper alignmentEngine Block, Cast Iron, 4 Bolt Mains, 4. 250 in. Diameter Bore, 1 Piece Rear Main Seal, Chevy, Big Block, Each Main Journal Type: Chevy 454 Engine Block Material: Cast iron Engine Block Style: OEM Engine Block Deck Height: Standard deck Deck Height (in.): 9. 800 in. Cylinder Bore as Shipped: 4. 240 in. Cylinder Bore Diameter: 4. 250 in. Maximum Bore Diameter (in.): 4. 310 Main Bolt Style: 4 bolt Main Caps Included: Yes Main Cap Material: Cast iron