RHS - 54903U - Ls Aluminum Block - 4.120 Bore 9.240 D/H

Engine - Bare Block - 4.125 in Bore - 9.250 Deck - Standard Main - 6-Bolt Mains - 1-Piece Seal - 6-Bolt Head - Aluminum - Natural - GM LS-Series - Each

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Standard features include:

* Designed from aircraft-quality A357-T6 aluminum
* Siamese cast bore walls (4.125 in. or 4.165 in. diameter) with press-in cast iron sleeves
* Machined with 55mm cam bearing journal
* Available in standard (9.240 in.) deck heights with beefy deck thicknesses (.500 in. standard/ standard (5.87 in.)  deck cylinder sleeves are available
* 6 head bolt design with full water jacket around the cylinders' walls; large windows in the valley allow access to an inboard 6th head bolt
* Block design includes large front and rear AN-12 side feeds for serious dry sump setups
* Material for oversized lifters with lifter bosses that are designed to clear tie bar style lifters

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Valmistajan osanumero: 54903U

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