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LH6 5.3 Vortec Long Block Crate Engine

Original price was: $4,195.00.Current price is: $3,395.00.

Our LH6 5.3-liter Vortec Long Block Crate Engine is on sale. General Motors started production on this V8 small block in 2005. Unlike its predecessors, this engine was more fuel-efficient and utilized an aluminum block. The 325 was not only used in Chevy and GM vehicles; Buick, Saab, and Isuzu also took advantage of this fuel-efficient engine. Our XP1 series is far from a rebuilt LH6 long block; every motor is completely remanufactured to meet or exceed the original factory specifications. This OEM replacement has been designed to increase the life expectancy of your vehicle.

To be compatible with your vehicle, the 8th digit of your VIN should be: M. This engine uses LM7 lifters, so customers would need to delete the DOD (Displacement On Demand).

Core Deposit: $700.00

Note: Please CALL before completing your order to receive a shipping quote, verify vehicle information, and confirm a core deposit and details. 1-888-995-7278.

Quick Info SKU: 325-LH6-LB-MSE Categories: Tag:

Description

OEM REPLACEMENT

Our precision remanufactured LH6 block

Every LH6 block must pass our magnaflux inspection designed to detect any microscopic flaws or cracking. Blocks are then thermally cleaned, followed by steel microblasting until they achieve a brilliant appearance. Once a block is fully cleaned, we begin our precision boring and honing process. Using a carbon two-stage power hone, we can maximize the sealed area and ensure that it precisely meets the recommended RMA readings. Computerized micrometers are used to resize rods in strict accordance with factory recommendations. Crankshafts are precision cut and micro-polished to achieve a 12 RMA reading or better.

Custom long block assembly

We meticulously mill each cylinder head until perfect alignment and sealing of the head gasket is achieved. Our cylinder heads are assembled using a new valve stem and seals, that feature the latest high-temperature technologies, increasing heat resistance and longevity. These polished cylinder heads are pressure tested using magnetic detection to eliminate the chance of cracks or flaws unseen by the human eye. Before each head is mated to their block using the correct torque valve, we vacuum test all seals for proper seating. Triple-angled cutters are used to machine the valve seats, ensuring proper pressure and flow. All valves, valve springs, and valve guides must pass our stringent process of meeting and exceeding OEM specifications. O.H.C. heads are aligned for proper bore consistency. Every remanufactured long block has been specifically engineered to help improve the inherent flaws and failure points that can be found in many of today's engines.

rebuilt engine

Additional information

Condition

Core Deposit

Vehicle Year

, , ,

8th Digit of VIN

Included With Long Block Engine

What Is XP1

Far from just being rebuilt, the Xtreme Performance series 1 is an OEM replacement that has been fully remanufactured with upgraded parts that have been designed to increase performance, reliability and longevity.

Alternate Names

Testing

Compatible Models

Chevrolet TrailBlazer, TrailBlazer EXT, Silverado, GMC Envoy Denali, Envoy XL, Envoy XUV, Buick Rainier, Saab 9-7X, Isuzu Ascender

Build Type

Note

Make Manufacturer

, , , ,

Cubic Inches

Liters

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Description

OEM REPLACEMENT

Our precision remanufactured LH6 block

Every LH6 block must pass our magnaflux inspection designed to detect any microscopic flaws or cracking. Blocks are then thermally cleaned, followed by steel microblasting until they achieve a brilliant appearance. Once a block is fully cleaned, we begin our precision boring and honing process. Using a carbon two-stage power hone, we can maximize the sealed area and ensure that it precisely meets the recommended RMA readings. Computerized micrometers are used to resize rods in strict accordance with factory recommendations. Crankshafts are precision cut and micro-polished to achieve a 12 RMA reading or better.

Custom long block assembly

We meticulously mill each cylinder head until perfect alignment and sealing of the head gasket is achieved. Our cylinder heads are assembled using a new valve stem and seals, that feature the latest high-temperature technologies, increasing heat resistance and longevity. These polished cylinder heads are pressure tested using magnetic detection to eliminate the chance of cracks or flaws unseen by the human eye. Before each head is mated to their block using the correct torque valve, we vacuum test all seals for proper seating. Triple-angled cutters are used to machine the valve seats, ensuring proper pressure and flow. All valves, valve springs, and valve guides must pass our stringent process of meeting and exceeding OEM specifications. O.H.C. heads are aligned for proper bore consistency. Every remanufactured long block has been specifically engineered to help improve the inherent flaws and failure points that can be found in many of today's engines.

rebuilt engine

Additional information

Condition

Core Deposit

Vehicle Year

, , ,

8th Digit of VIN

Included With Long Block Engine

What Is XP1

Far from just being rebuilt, the Xtreme Performance series 1 is an OEM replacement that has been fully remanufactured with upgraded parts that have been designed to increase performance, reliability and longevity.

Alternate Names

Testing

Compatible Models

Chevrolet TrailBlazer, TrailBlazer EXT, Silverado, GMC Envoy Denali, Envoy XL, Envoy XUV, Buick Rainier, Saab 9-7X, Isuzu Ascender

Build Type

Note

Make Manufacturer

, , , ,

Cubic Inches

Liters

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

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QUICK INFO

Monday-Friday: 8am to 5pm CST
Xtreme Performance PO Box 313 Farmington MN, 55024 United States
+ 1(888) 995-7278 + 1(888) 995-PART
info@xtremepart.com