ABOUT THIS PRODUCT

Engineers at RHS have designed a high performance aluminum engine block for GM LS applications to meet the needs of race and street performance engine builders alike. To go beyond the limitations of other existing LS blocks, the new RHS LS Race Block is available in both standard deck and tall deck height configurations. Additionally, this innovative aluminum block features a raised cam centerline and outboard priority main oiling to allow rod clearance for a 4.600" stroke and to minimize windage in the crankcase. And for quality control assurance, RHS conducts a CT scan (similar to a medical CAT scan) on each block to ensure maximum casting precision and consistency. When you combine unmatched finishing quality with added clearance for increased stroke applications, precision computeraided design and extra surface material to allow custom machining, you get the new benchmark for LS horsepower, torque and durability.

Product Features:

• Designed from heavy-duty A357-T6 aluminum material
• Provisions for Gen III & Gen IV cam & knock sensors & valley covers
• Cam tunnel will accommodate stock through oversized 60mm roller bearing cams (includes cast-in lock screw pads)
• Priority main oiling, galley moved outboard for long stroke clearance
• Dry sump friendly with provisions for more serious dry sump setups; includes big front & rear AN-12 side feeds
• Rolled threads on all threaded holes for added strength
• Chilled main bearing bulkheads for added strength