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4.3L LU3 GM Engine

$3,426.23

The LU3 Vortec 4300 is a 90° V6 truck/sport utility engine, that is based on the same architecture as the 350″/5.7L Chevrolet small-block V8. The LU3 uses a cast iron block and heads with a 101.60mm (4.00″) bore and 88.39mm (3.48″) stroke. Power output of the LU3 engine is 180–200 hp and 245–260 lb.-ft. of torque. Available new or remanufactured.

4.3L LU3 New/Reman Application Data

12491869
2001-2002 Chev/GMC Pickup, Blazer, Jimmy (ST1)
2001-–2002 Chev/GMC Pickup (CK1)
2001-–2002 Chev/GMC Express, Savana (G1,G2)
2001-–2002 Chev/GMC Astro, Safari (LM1)
Note: Exc oil pan, valve cover

 

Note: Swap oil pan from original engine or buy new. P/N 12555653 as required for oil level switch.

This product includes a $200 Core Charge. See Core Charge Tab below for more details.

Shipping is free, but there is a delivery fee for residential addresses.

SKU: 12491869 Categories: ,

The LU3 Vortec 4300 is a 90° V6 truck/sport utility engine, that is based on the same architecture as the 350″/5.7L Chevrolet small-block V8. The LU3 uses a cast iron block and heads with a 101.60mm (4.00″) bore and 88.39mm (3.48″) stroke. Power output of the LU3 engine is 180–200 hp and 245–260 lb.-ft. of torque. Available new or remanufactured.

4.3L LU3 New/Reman Application Data

12491869
2001-–2002  Chev/GMC Pickup, Blazer, Jimmy (ST1)
2001-–2002  Chev/GMC Pickup (CK1)
2001-–2002  Chev/GMC Express, Savana (G1,G2)
2001-–2002  Chev/GMC Astro, Safari (LM1)

Note: Exc oil pan, valve cover

Note: Swap oil pan from original engine or buy new. P/N 12555653 as required for oil level switch.

Weight 320 lbs
Brand

Emissions

Please share VIN and current mileage in order notes for warranty documentation (if applicable)
Manufacturer Part Number

12491869

This product contains a core charge.  If you return your core to us and it’s deemed reusable you will be refunded the core charge amount.  If you have any questions please give our team a call here at 855-806-1147 and we would be happy to help you out.

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Prop65WARNING: 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.