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!

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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.

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Technical Specifications

Designed for seamless LS power in vintage and classic car builds!

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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!

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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!

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❓ 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.

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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