{"product_id":"ede-engine-block-1","title":"Edelbrock 54903U-904 - RHS LS Block, Standard 9.240\" Deck, .904 Lifter, 55 Roller Cam Bearing (Machined Only)","description":"\u003cp\u003eEngineers 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 confi gurations. 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 computer aided design and extra surface material to allow custom machining, you get the new benchmark for LS horsepower, torque and durability.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRaised cam centerline (.388”\/9.86mm) to allow larger stroke\u003c\/li\u003e\n\u003cli\u003e2 extra links in the timing chain – Timing sets available from COMP®\u003c\/li\u003e\n\u003cli\u003e.904” lifters standard\u003c\/li\u003e\n\u003cli\u003e6 head bolt design w\/ full water jacket around the cylinders (based on LS7 design)\u003c\/li\u003e\n\u003cli\u003eRHS LS Block, Standard 9.240\" Deck, .904 Lifter, 55 Roller Cam Bearing (Machined Only)\u003c\/li\u003e\n\u003cli\u003eRolled threads on all threaded holes for added strength\u003c\/li\u003e\n\u003cli\u003eGen III\/Gen IV compliant with race mounts for Gen I, Gen II, Gen III \u0026amp; Gen IV engines\u003c\/li\u003e\n\u003cli\u003eP1 MFG main stud kit standard with enough material in castings to accommodate up to a 0.5” fastener\u003c\/li\u003e\n\u003cli\u003eChilled main bearing bulkheads for added strength\u003c\/li\u003e\n\u003cli\u003eOptimized billet main caps \u0026amp; improved windage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCam Housing Bore Diameter:\u003c\/strong\u003e 55mm roller bearing or 60 mm babbit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Bore Diameter:\u003c\/strong\u003e 4.125 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Quantity:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck Height:\u003c\/strong\u003e 9.240 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifter Bore Diameter:\u003c\/strong\u003e 0.904 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Bearing Cap Bolt Quantity:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e RHS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelated Products:\u003c\/strong\u003e 70361251-8 70362501-8 70363001-8 70364001-8 70340001LUN 70840001LUN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Products:\u003c\/strong\u003e 549401-SET or 549402-SET or 549403-SET or 549404-SET and 5496 or 5497\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":45351724974215,"sku":"EDE54903U-904","price":10626.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/4008\/1543\/files\/RHS_54903U-904_BLOCK__20Standard_20Deck_200.904_V1_adf80a14-4c4c-4c6e-804c-0ca385b914b2.jpg?v=1788268788","url":"https:\/\/checkout.northernperformance.ca\/products\/ede-engine-block-1","provider":"Northern Performance","version":"1.0","type":"link"}