Description
LS Classic Series LS3 495 HP Long Block Crate Engine (GMLS9005) – Classic Style, Modern Power!
Upgrade your project with the LS Classic Series LS3 495 HP Crate Engine!
The LS Classic Series LS3 495 HP Long Block Crate Engine (GMLS9005) delivers modern GM LS power wrapped in a vintage package. With a painted orange block, chrome BBC-style valve covers, and a 14” Classic Intake Kit, this engine combines aesthetics with performance. Featuring a Holley EFI system and dyno-tested calibration, it ensures easy installation and reliable performance.
The ultimate choice for builders who want classic looks with modern performance!
What’s Included in the Crate Engine?
✅ Brand New GM LS3 495 HP Crate Engine – Factory-built and dyno-tested for reliability
✅ Holley Terminator Engine Management System – Pre-tuned for an easy start-up
✅ Chrome Big Block Chevy-Style Valve Covers – Vintage look with modern LS performance
✅ 14” Classic Intake Kit – Maintains old-school muscle car aesthetics
✅ Corvette Water Pump, Thermostat Housing, & Balancer – Optimized for cooling efficiency
✅ High-Performance Rear Dump Exhaust Manifolds – Enhances exhaust flow for maximum power
✅ 14” Automatic Transmission Flexplate – Designed for seamless integration with auto transmissions
⚠️ EXCLUDES front accessory drive, starter, ignition coils, and ECU wiring installation. These must be sourced separately based on your application.
Technical Specifications
| Feature | Details |
|---|---|
| Brand | LS Classic |
| Manufacturer’s Part # | GMLS9005 |
| Product Type | Long Block Crate Engine |
| Summit Racing Part # | LSS-GMLS9005 |
| 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 |
Designed for seamless LS power in vintage and classic car builds!
Fitment & Compatibility
✔ Ideal for hot rods, restomods, muscle cars, and pro touring applications
✔ Compatible with most LS-based transmission setups
✔ Perfect for builders who want a vintage aesthetic with modern EFI performance
Ensure your vehicle modifications support an LS swap before ordering!
Installation Notes & Recommendations
Professional Installation Strongly Recommended – Engine requires tuning and proper setup for best performance
⚙️ Standalone Transmission Controller Required for Auto Transmissions – Not included in package
Custom Exhaust & Fuel System Recommended – Supports return-style fuel systems for optimal EFI performance
⚠️ Ensure proper cooling, fuel pressure, and ignition system setup for maximum efficiency!
❓ Frequently Asked Questions (FAQ)
Does this engine include a starter and front accessory drive?
-
No, the starter and front accessory drive system must be purchased separately.
Is this engine pre-tuned?
-
Yes, the Holley Terminator EFI ECU comes with a startup tune for easy installation.
Can I use this engine with a manual transmission?
-
Yes, but you’ll need a proper LS-compatible flywheel as the included flexplate is for automatics.
What fuel type does this engine require?
-
Premium 93 Octane fuel is recommended for best performance and longevity.
What is the warranty on this engine?
-
2-Year Warranty included from GM & LS Classic.
Order Your LS Classic LS3 495 HP Crate Engine Today!
Experience the perfect blend of modern LS power and classic aesthetics with the LS Classic LS3 Crate Engine!
✔ Factory GM LS3 Engine with Classic Muscle Car Styling
✔ Holley Terminator EFI for Hassle-Free Performance
✔ Fully Assembled, Dyno-Tested, & Ready to Install
✔ Perfect for Hot Rods, Restomods, & Pro Touring Builds
ORDER NOW & TRANSFORM YOUR BUILD WITH MODERN LS POWER!
LS Classic GMLS9005 LS3 details
All of our LS Classic components are available, installed, on one of our Classic Crate Engines. We start with a brand new, GM 495 horse power LS3 right out of the box and with a two year warranty. We then paint it orange (if you so desire) and begin assembling your desired components until we have the perfect crate engine for your project. Once completely assembled we put the engine on our in-house run stand, load your Holley EFI ECU with our start-up tune, and run your engine to check for leaks and oil pressure. After we are satisfied that your engine will operate with no issues, we put it back in the original GM crate and ship it directly to you or your builder. Once you receive your engine it is as simple as installing the engine, routing the Holley wiring harness, terminating a couple of power and ground wires, and putting fuel pressure to the engine. We guarantee an easy start up!
All Crate Engines include:
- New GM LS3 495 HP Crate Engine with two year warranty
- Painted orange or unpainted
- Holley Terminator engine management system with O2 sensor and trans control
- Corvette water pump, thermostat housing, and balancer
- High performance rear dump exhaust manifolds
- 14″ automatic transmission flexplate
GMLS9005 14″ Classic Crate Engine, painted orange, with chrome Big Block Chevy Valve Covers
- Painted orange
- 14″ Classic Intake Kit
- Chrome plated Big Block Chevy style valve covers
- Valley plate with oil fill tube and machined finish
- Two year warranty.
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 |
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