L31 LD Crate Engine – GM 5.7L Vortec 350 L31 LD Crate Engine
Original price was: $5,429.13.$4,995.31Current price is: $4,995.31.
This replacement Chevy 350 Vortec light-duty engine will provide the OE horsepower and torque specifications while offering added durability over the factory engine. New harmonic balancer, oil pan, timing cover, and valve covers come pre-installed allowing less labor time swapping parts around. This engine features precision machine work and final cylinder honing all on computer-controlled machinery. Other features include:
- 1996-2002 GM Truck, SUV, Van applications
- L31 LD Vortec 350 ci / 5.7L V8
- 1/2-ton Applications
- 4-Bolt Mains
- Long Block
5.7L Vortec 350 L31 Crate Engine
If you need a heavy-duty engine for your 1/2 truck or van, the 5.7L Vortec will get the job done! This hard-working replacement engine provides the OE horsepower and torque specifications while adding high-quality internals for long-term durability. With 330 lb. ft. of torque available at a low 2,800 RPM, this engine is in a class all its own.
What’s Included
- All new cylinder head and block castings
- Forged steel crankshaft
- All blocks are 4 bolt main
- All blocks are mechanical fuel pump capable (Gen1e/L31 has no camshaft eccentric)
Important Notes
- No core charge
- New valve covers, oil pan, timing cover, and harmonic balancer for less labor hours at your installer
- GM OE part validation must comply with an 18 step quality process
- Torque to turn over, compression & oil pressure tested at end of the line.
- Machined using precision CNC equipment
- Machined and assembled in the USA
- Old number 12530282
| Weight | 438 lbs |
|---|---|
| Brand | |
| Emissions | Please share VIN and current mileage in order notes for warranty documentation (if applicable) |
| Manufacturer Part Number | 12691673 |
5.7L Vortec 350 L31 Tech Specs
- P/N: 12691673
- Power: 255 hp @ 4,600 rpm / 330 lb.-ft. @ 2,800 rpm
- Engine Type: Chevy Small-Block V-8
- Displacement (cu. in.): 350
- Bore x Stroke (in.): 4.000 x 3.480
- Block: Cast-iron with 4-bolt main
- Crankshaft: Forged steel
- Connecting Rods: Powdered metal
- Pistons: Hypereutectic aluminum
- Camshaft Type: Hydraulic Roller
- Valve Lift (in): .414 intake / .428 exhaust
- Camshaft Duration (@.050 in): 191° intake / 196° exhaust
- Cylinder Heads: Cast iron
- Compression Ratio: 9.4:1 nominal
- Balanced: External
GM 5.7L Vortec 350 L31 Crate Engine
- 2001 GMC Savana 1500
- 2002 Chevrolet Express 1500
- 1996 Chevrolet C1500
- 1996 GMC K1500
- 1996 GMC Savana 1500
- 1997 Chevrolet Tahoe
- 1997 GMC C1500 Suburban
- 1997 GMC Savana 1500
- 1998 Chevrolet C1500
- 1998 Chevrolet Express 1500
- 1998 Chevrolet K1500 Suburban
- 1999 Cadillac Escalade
- 1999 Chevrolet C1500 Suburban
- 1999 Chevrolet K1500
- 1999 Chevrolet Tahoe
- 1999 GMC C1500
- 1999 GMC K1500
- 1999 GMC Savana 1500
- 2000 Chevrolet Tahoe
- 2002 GMC Savana 1500
- 1996 Chevrolet Express 1500
- 1996 Chevrolet K1500 Suburban
- 1996 GMC C1500
- 1997 Chevrolet C1500
- 1997 Chevrolet K1500 Suburban
- 1997 GMC C1500
- 1997 GMC K1500
- 1997 GMC Yukon
- 1998 Chevrolet K1500
- 1998 Chevrolet Tahoe
- 1998 GMC C1500
- 1998 GMC K1500 Suburban
- 1998 GMC Yukon
- 1999 Chevrolet K1500 Suburban
- 1999 GMC C1500 Suburban
- 1996 Chevrolet C1500 Suburban
- 1996 Chevrolet K1500
- 1996 Chevrolet Tahoe
- 1996 GMC C1500 Suburban
- 1996 GMC K1500 Suburban
- 1996 GMC Yukon
- 1997 Chevrolet C1500 Suburban
- 1997 Chevrolet Express 1500
- 1997 Chevrolet K1500
- 1997 GMC K1500 Suburban
- 1998 Chevrolet C1500 Suburban
- 1998 GMC C1500 Suburban
- 1998 GMC K1500
- 1998 GMC Savana 1500
- 1999 Chevrolet C1500
- 1999 Chevrolet Express 1500
- 1999 GMC K1500 Suburban
- 1999 GMC Yukon
- 2000 Cadillac Escalade
- 2000 Chevrolet Express 1500
- 2000 GMC Savana 1500
- 2001 Chevrolet Express 1500
Chevrolet Performance Crate Engines carry a 24 Month or 50,000 mile warranty (whichever comes first) when installed by a qualified independent service center. Chevrolet Performance Crate Engines also come with a 30 day start up warranty (parts only).
There are some additional limitations on the warranty – please see the official GM warranty documentation for more information.
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WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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