LS Classic Series LS Classic GMLS9005 LS3 14″ Classic Crate Engine Chrome BBC Style

GMLS9005 takes a new, GM-built LS3 rated at 495 HP and 473 lb-ft of torque and dresses it in a 14-inch Classic Intake Kit with chrome Big Block Chevy-style valve covers over a painted-orange block, so the 376-cubic-inch (6.2L) long block looks like vintage muscle while running a 10.7:1 compression ratio underneath. Built-in electronics and cooling Rather than leaving tuning to the installer, this engine comes with a Holley Terminator EFI computer already loaded and its wiring harness attached, a round chrome air cleaner on top, and the thermostat housing, balancer, and water pump sourced in Corvette style. High-performance rear-dump exhaust manifolds and a 14-inch automatic-transmission flexplate round out the drivetrain-side parts; there's no flywheel, so this build points to an automatic rather than a manual. Valve and cam specs Intake valves measure 2.165 inches and exhaust valves 1.590 inches, working through a 1.7:1 rocker ratio on the aluminum heads. Camshaft lift is .525 inch on both sides, with duration figures of 219 degrees intake and 228 exhaust, and Chevrolet Performance's recommended ceiling sits at 6,600 rpm. Installing it This engine suits hot rods, restomods, and pro-touring builds that want LS power under a traditional big-block silhouette. A starter and front accessory drive aren't part of the package, and because the chrome valve covers have no coil-mounting provisions, ignition coils need to be mounted remotely; the included wiring harness still has to be routed and its connections finished during installation. Common questions Is this engine painted or bare? It ships painted orange with chrome Big Block Chevy-style valve covers. What warranty does it carry? A two-year warranty from GM and LS Classic. Specifications Feature Details Brand LS Classic Manufacturer’s Part # GMLS9005 Product Type Long Block Crate Engine UPC 847087045292 Actual Displacement 6.2L / 376 C.I.D. Assembled? Yes Horsepower 495 HP Torque 473 ft-lbs Compression Ratio 10.7:1 Cylinder Heads Included? Yes Intake Manifold Included? Yes (EFI) Throttle Body Included? Yes Oil Pan Included? Yes Valve Covers Included? Yes (Chrome BBC Style) Timing Cover Included? Yes Water Pump Included? Yes Harmonic Balancer Included? Yes Air Cleaner Included? Yes (Round Chrome) Spark Plugs Included? Yes Spark Plug Wires Included? No Computer Included? Yes (Holley Terminator EFI) Wiring Harness Included? Yes Flywheel Included? No Flexplate Included? Yes Accessory Bolt Holes Drilled? Yes Quantity Sold Individually KEY SPECS MFG. Part # GMLS9005 Brand LS Classic Crate Engine Type Long Block Engine Displacement 376 cu. in. Horsepower 495 horsepower Compression Ratio 10.7:1 Torque 473 ft./lbs. Camshaft Type Hydraulic Roller Tappet Cylinder Head Material Aluminum Piston Material Hyper-eutectic Aluminum Crankshaft Material Nodular Iron Combustion Chamber Volume 68cc Camshaft Duration (.050 in) 219° intake / 228° exhaust Camshaft Lift (in) .525 intake /.525 exhaust Bore x Stroke (in) 4.065 x 3.622 (103.25 x 92mm) Carburetor Included No Intake Manifold Included Yes Distributor Included No Connecting Rod Material Powdered Metal Valve Covers Included Yes Engine Balance Internal Cylinder Heads Included Yes Rear Main Seal Style 1-piece Throttle Body Included Yes Oil Pan Included Yes Timing Cover Included Yes Water Pump Included Yes Harmonic Balancer Included Yes Flexplate Included Yes Flywheel Included No Air Cleaner Included Yes Spark Plugs Included Yes Spark Plug Wires Included No Computer Included Yes Wiring Harness Included Yes Accessory Bolt Holes Drilled Yes Recommended Fuel Premium GENERAL Maximum RPM 6600 Assembled Yes Cylinder Head Style Assembled Intake Valves Included Yes Intake Valve Diameter 2.165″ Exhaust Valves Included Yes Exhaust Valve Diameter 1.59″ Valve Spring Included Yes Rocker Arm Studs Included Yes Rocker Arms Included Yes Heat Crossover Yes Head Gaskets Included Yes Intake Style Electronic Fuel Injection Intake Finish Natural Intake Material Aluminum Intake Gaskets Included Yes Intake Manifold Fasteners Included Yes Camshaft Included Yes Intake Duration (.050″ Lift) 219° Exhaust Duration (.050″ Lift) 228° Lifters Included Yes Cylinder Heads Aluminum L92-style port; “as cast” with 68-cc chambers Valve Size (in) 2.165 intake / 1.590 exhaust Rocker Arms Investment-cast, roller trunnion Rocker Arm Ratio 1.7:1 Maximum Recommended RPM 6600 Reluctor Wheel 58x Internally Balanced Yes Displacement 376 (6.2L) Block Cast-aluminum with six-bolt...