{"product_id":"gm-performance-gm19258770-ls3-efi-engine-430-hp-424-ft-lbs","title":"GM Performance GM19258770 Ls3 Efi Engine 430 Hp 424 Ft Lbs","description":"\u003cp\u003e\u003cstrong\u003eEngine Block Description:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e Starting with the '08 Corvette, the world was first introduced to GM's latest small block V8 creation the 6.2-liter LS3. A continuation of the industry leading V8 engines from GM Powertrain, the LS3 kicks out 430 horsepower and 424 lb.-ft. of torque. (In the Corvette, those numbers go to 436 hp and 428 lb.-ft. of torque with the optional dual mode exhaust system.) It's a brute of a small block with 376 ready cubes at your beckon call.\u003c\/p\u003e\u003cp\u003eThe LS series of engines from GM Powertrain have broken new ground for efficiency and performance from a pushrod platform engine. The LS3 continues the engineering breakthroughs with revised cylinder heads featuring rectangle ports borrowed from the vaunted LS7. The heads feature 63 cc combustion chambers, 2.16-inch intake valves, and 1.59-inch exhaust valves. The camshaft features an aggressive .551-inches of lift on the intake side with less overlap (than the LS2) for even greater airflow and power. Rocker arms with a 1.7:1 ratio sit on top of the heads.\u003c\/p\u003e\u003cp\u003eIn the bottom end, the aluminium 6-bolts\/main block features 4.06-inch bores and 3.62-inch stroke. A nodular iron crankshaft, powdered metal rods, and aluminium pistons (10.7:1 compression ratio) round out a rev-happy short block. Red line for the LS3 comes at 6600 rpm, and you will get there very quickly. \u003c\/p\u003e\u003cp\u003eWith a high-tech GM foundation, aluminum block, and high flowing rectangular-port heads, the LS3 is the new standard in the small block world. The LS3 helps power the new Corvette to a top speed of 190 mph. What will it power you to?\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e Power: 430 HP @ 5900 RPM, 424 ft. lbs. of torque @ 4600 RPM \u003c\/li\u003e\n\u003cli\u003eDisplacement: 376 CID, 6.2L\u003c\/li\u003e\n\u003cli\u003eBore x Stroke: 4.060\" x 3.620\"\u003c\/li\u003e \u003cli\u003eCompression Ratio: 10.7:1 \u003c\/li\u003e\n\u003cli\u003eRecommended Fuel: 92 Octane\u003c\/li\u003e\n\u003cli\u003eBlock: Cast Aluminium with 6 bolt cross bolted main caps\u003c\/li\u003e\n\u003cli\u003e Crankshaft: Nodular Iron\u003c\/li\u003e \u003cli\u003eConnecting Rods: Powdered Metal Steel\u003c\/li\u003e\n\u003cli\u003ePistons: Hypereutectic Aluminium\u003c\/li\u003e \u003cli\u003eCamshaft: Steel Hydraulic Roller Tappet\u003c\/li\u003e\n\u003cli\u003eCam Lift: .551\" Intake \/ .522\" exhaust\u003c\/li\u003e\n\u003cli\u003eCam Duration @ .050\": 204 deg. Intake \/ 211 deg. Exhaust\u003c\/li\u003e\n\u003cli\u003eLobe Separation: N\/A\u003c\/li\u003e\n\u003cli\u003e Cylinder Heads: Aluminium L92\/LS3 style ports\u003c\/li\u003e\n\u003cli\u003e Combustion Chamber: 68cc\u003c\/li\u003e \u003cli\u003eValves: 2.165\" Intake\/ 1.590\" Exhaust\u003c\/li\u003e\n\u003cli\u003eRocker Arms: Cast Roller Trunnion, 1.7:1 Ratio\u003c\/li\u003e\n\u003cli\u003eBalance: Internal\u003c\/li\u003e\n\u003cli\u003eReluctor: 58X\u003c\/li\u003e\n\u003cli\u003eMaximum GM Recommended RPM: 6600\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eEngine Includes:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e Fully GM assembled long block \u003c\/li\u003e\n\u003cli\u003eIgnition Coils, Plug Wires and Spark Plugs\u003c\/li\u003e\n\u003cli\u003e Oil pump, pick-up and Camaro oil pan\u003c\/li\u003e\n\u003cli\u003eExhaust Manifolds\u003c\/li\u003e\n\u003cli\u003eIntake, Injectors and Throttle Body \u003c\/li\u003e\n\u003cli\u003e14\" Auto Trans Flexplate\u003c\/li\u003e\n\u003cli\u003eHarmonic Balancer\u003c\/li\u003e\n\u003cli\u003eFront timing cover\u003c\/li\u003e\n\u003cli\u003eAluminium Water Pump\u003c\/li\u003e\n\u003cli\u003eOil Filter\u003c\/li\u003e \u003cli\u003ePassenger Side RH Oil Dipstick and Tube\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e","brand":"GM Performance","offers":[{"title":"Default Title","offer_id":44881872978231,"sku":"GM19258770","price":12392.4,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/83212.jpg?v=1780374582","url":"https:\/\/enginemaster.com.au\/products\/gm-performance-gm19258770-ls3-efi-engine-430-hp-424-ft-lbs","provider":"Engine Master","version":"1.0","type":"link"}