{"product_id":"ct525-ls3-6-2l-crate-engine","title":"CT525 LS3 6.2L Crate Engine","description":"\u003cp\u003e\u003cspan\u003eCT525 LS3 6.2L Crate Engine\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e533 HP @ 6,600 RPM\u003c\/li\u003e\n\u003cli\u003e477 ft.-lbs. TQ @ 5,200 RPM\u003c\/li\u003e\n\u003cli\u003eWith Forged Pistons\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCT525 LS3 6.2L Crate Engine Specs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBalance: Internal\u003c\/li\u003e\n\u003cli\u003eBlock: Cast-aluminum with six-bolt, cross-bolted main caps\u003c\/li\u003e\n\u003cli\u003eBore x Stroke: 4.065 in. x 3.620 in.\u003c\/li\u003e\n\u003cli\u003eCamshaft: Hydraulic roller\u003c\/li\u003e\n\u003cli\u003eCamshaft Duration: 226-degree intake \/ 236-degree exhaust (at 0.050 in.)\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 10.7:1\u003c\/li\u003e\n\u003cli\u003eConnecting Rods: Powdered metal\u003c\/li\u003e\n\u003cli\u003eConnecting Rod Bolts: ARP Standard High-Performance Rod Bolts, 8740 alloy chrome-moly steel\u003c\/li\u003e\n\u003cli\u003eCrankshaft: Nodular iron\u003c\/li\u003e\n\u003cli\u003eCylinder Heads: LS3 rectangle port; aluminum with 68cc chambers\u003c\/li\u003e\n\u003cli\u003eDisplacement: 376 ci (6.2L)\u003c\/li\u003e\n\u003cli\u003eEngine Type: LS-Series Gen-IV Small-Block V-8\u003c\/li\u003e\n\u003cli\u003eFuel: 91-94 Octane (premium)\u003c\/li\u003e\n\u003cli\u003eMax Recommended RPM: 6700\u003c\/li\u003e\n\u003cli\u003ePistons: Forged aluminum\u003c\/li\u003e\n\u003cli\u003eReluctor Wheel: 58X\u003c\/li\u003e\n\u003cli\u003eRocker Arms: Investment-cast, roller trunnion\u003c\/li\u003e\n\u003cli\u003eRocker Arm Ratio: 1.7:1\u003c\/li\u003e\n\u003cli\u003eValve Lift: 0.525 in. intake\/ 0.525 in. exhaust\u003c\/li\u003e\n\u003cli\u003eValve Size: 2.165 in. intake\/  1.590 in. exhaust \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a circle track engine and is not intended for street use. It is purpose-built for racing only and is sold as-is with no manufacturer warranty.\u003c\/p\u003e\n\u003cp\u003eAccessories required for use such as air intake, carburetor, exhaust manifolds, front accessory drive system, fuel system, ignition controller, starter and water pump are all sold separately.\u003c\/p\u003e\n\u003cp\u003eThe included 6-quart oil pan is designed to clear most GM rear-steer chassis with a stock engine location.\u003c\/p\u003e\n\u003cp\u003eCircle track anti-tampering seals come installed on this engine.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEngine Break-In Procedure\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUse only engine oil that meets dexos1 specifications. For track events or competitive driving, use Mobil 1 15W-50 engine oil. Fill the engine with oil and follow the proper engine priming procedure.  Also check and fill as required any other necessary fluids such as coolant, power steering fluid, etc.\u003c\/p\u003e\n\u003cp\u003eStart the engine and listen for any unusual noises. If no unusual noises are noted, run the engine at approximately 1000 RPM until normal operating temperature is reached.  The engine should be driven at varying loads and conditions for the first 30 miles or one hour without wide open throttle (WOT) or sustained high RPM accelerations.  Run five or six medium throttle (50%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear. Run two or three hard throttle (WOT 100%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear. \u003c\/p\u003e\n\u003cp\u003eChange the engine oil and filter. Inspect the oil and the oil filter for any foreign particles to ensure that the engine is functioning properly.  Drive the next 500 miles (12 to 15 engine hours) under normal conditions. Do not run the engine at its maximum rated engine speed. Also, do not expose the engine to extended periods of high load.  Change the oil and filter again, inspect the oil and oil filter for any foreign particles to ensure that the engine is functioning properly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Harrington's Machine Shop","offers":[{"title":"Default Title","offer_id":49121746944222,"sku":"19434598","price":12850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/2141\/7694\/files\/809-19434598.jpg?v=1790625905","url":"https:\/\/harringtonspeformanceparts.com\/products\/ct525-ls3-6-2l-crate-engine","provider":"Harrington's Performace Parts","version":"1.0","type":"link"}