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LS Classic GMLS9005 LS3 14″ Classic Crate Engine Chrome BBC Style
- ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
- Insured European road freight delivery with hydraulic tail-lift service
- Dispatches in 1–2 business days from our UK & European Logistics Centre
- Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
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, cross-bolted main caps |
| Pistons | Hyper-eutectic Aluminum |
| GTIN Code | 847087045292 |
Notes | Engine does not include starter or front engine accessory drive. Engine harness requires installation. Valve covers do not have provisions for mounting ignition coils, remote mounting is required. Includes chrome BBC style valve covers and round chrome air cleaner. Engine is painted orange. |
| Sold in Quantity | Each |
Startup & Installation Checklist
- Inspect all external gaskets, seals, spark plugs and timing components prior to installation.
- Refill engine oil, transmission gear oil and coolant to manufacturer-specified capacities before initial cranking.
- Prime the lubrication system and verify ECU wiring pinouts, sensors, and ground connections.
- Startup warranty covers internal lubricated components, cylinder heads, and engine block for 30 days from delivery.
Full terms: 30-day startup warranty · returns