RHS Standard Deck Block 54903U

* If interested in purchasing this product, please email online@redlineperformance.com. Due the size/weight, an additional shipping quote is required. RHS Standard Deck Block 54903U Part #: 54903U These RHS LS bare race blocks are designed to meet the needs of today's high performance engine builders and racing enthusiasts. These blocks are available in standard and tall deck height combinations and are engineered for maximum clearance around a 4.600 in. stroke crankshaft. With their unique design, RHS engineers were able to minimize windage in the rotating assembly, leading to superior engine lubrication at higher rpm. To make them friendly for existing race applications, these blocks contain both factory and motor plate race mounts for Gen I, II, III, and IV engines. RHS LS bare race blocks each receive a CT scan to ensure maximum performance and consistency.Standard features include:- Designed from aircraft-quality A357-T6 aluminum- Siamese cast bore walls (4.125 in. or 4.165 in. di