Edelbrock RHS LS Aluminum Race Block (Ready to Hone) 9.250in Standard Deck - 4.120in Bore

Part #: 54903U

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.

This block has a 9.240 deck height with a 4.125 bore and a 5.87 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.