Remanufactured LS Engines & Crate Long Blocks

Upgrade your truck or project vehicle with a high-performance remanufactured LS engine from Mechron Tech. We build complete LS long blocks to meet or exceed original factory specs. Each engine is fully tested to deliver top power and dependability.

  • Factory Precision: Re-machined block and heads with new internal parts.
  • Live Tested: Checked for oil pressure, compression, and balance.
  • Warranty: Backed by up to 7 years of protection.

Need help matching the right LS engine to your VIN or project?

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5.3L L59 remanufactured engine
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Chevy 5.3L L59 V8 Remanufactured Engine – 1999-2007 4WD/AWD

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Original price was: 3.199,00 €.Current price is: 2.799,00 €.
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Why Choose Remanufactured LS Engines From Mechron Tech?

The General Motors LS platform is famous for power and strength. Whether you need a replacement 5.3L, 6.0L, or 6.2L motor, our remanufactured LS engines offer zero-mile performance. We build every motor to eliminate common factory wear points.

Better Than Junkyard Cores

Used LS engines from salvage yards can have hidden oil starvation or metal fatigue. A remanufactured unit gives you fresh CNC-machined surfaces and brand new internal components.

Corrected Design Flaws

Some factory LS motors suffer from lifter tick or piston slap. Our rebuilding process upgrades valve gear, seals, and oil flow systems to increase engine lifespan.

Our Engine Machine Work & Testing Protocol

Every LS long block goes through a rigorous remanufacturing standard:

  • 1. Cleaning & Crack Testing: Engine blocks undergo hot tank thermal cleaning and magnetic testing to ensure zero structural cracks.
  • 2. Precision Cylinder Machining: Cylinder bores are honed to exact tolerances for proper piston ring seating and low oil burn.
  • 3. Brand New Wear Items: We install new pistons, rings, rod bearings, main bearings, lifters, oil pumps, and gaskets.
  • 4. Cold Spin Testing: Every engine is spun on a test bench to verify steady oil pressure and smooth compression before packing.

Nationwide Delivery & Warranty Coverage

We ship our LS replacement engines nationwide in heavy-duty freight crates. Each long block includes up to 7 years or 1 million miles of warranty protection. Contact us today with your vehicle VIN for quick fitment assistance.