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KEY FEATURES amp BENEFITS427 LS3L92 Small Block Chevy, 625HP,nbsp565 Ft. Lbs. Torque, 1.46 Per Cubic Inch Drop In Replacement For Your Factory LS2 Or LS3 Engine Only 2009 2013 ZR1 CorvettenbspHorsepower Onnbsp91 93 Octane Pump Gasoline Dyno Tested Prior To Shipping, Includes Actual Dyno Test Sheet amp Detailed Install Guide 30 Month, 50,000 Mile Limited Manufacturer Warranty Balanced, Blueprinted, amp Professionally Assembled By Hand In the USASPECIFICATIONSEngine Sizenbsp427 C.I. Small Block Chevy LS3 Blocknbsp New GMnbspLS3L92 Aluminum, 1 Piece Rear Main Seal, Squared amp Parrallel Decked, Align Honed Main Bearing Bore,nbspCylinders Are Sonic Tested For Thicknessnbsp Rotating Assemblynbsp New Forged Steel Crank w4.125 Stroke, 58X Reluctor Wheel, Forged 6.125 I Beam Rods with 150,000 PSI Bolts, Mahle Performance Rings, Forged Mahle Aluminum 111 Pistons Cylinder Headsnbsp BluePrint LS3 Aluminum, 68CC Chamber, Stainless 2.165 Intake amp 1.590 Exhaust Valves wSwirl Polished Undercut Stem, 3 Angle Valve Job, Chrome Nickel Valve Seats, Manganese Bronze Valve Guides, Chromeoly Retainers, 7 Degree Valve Locks, Dual Coil .650 Lift Valve Springs, Rocker Arm Studs wGuide Plates For Pushrods,
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