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LS Race Block

LS Race Block

LS Aluminum Race Block Tall Deck 4.120 Bore

Part number (SKU): 54901U

Dimensions: 17.50 x 20.50 x 26 cm

Weight: 140

Brand: RHS RHS

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Original Price: $7,064.88


Bored and Ready To Hone.

This block has a 9.750 deck height with a 4.125 bore and a 6.38 cylinder sleeve length. Cylinder walls are Siamese cast with press-in cast iron sleeves. 12AN feeds for dry sumps. Aircraft-quality A357-T6 aluminum. 6-Head Bolt Design.

In recent years, LS engine technology has revolutionized the GM performance aftermarket. Gen IV engines have set a new standard for factory horsepower and torque. To meet the growing demand of today?s high performance engine builders and racing enthusiasts, engineers at RHSesigned an aluminum LS engine block for radical street and all-out racing applications.

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