5.3L V8 LS Engine + 2WD Automatic Transmission

Engine Specifications

• Engine Type: GM 5.3L LS V8

• Engine Codes: LM7 / L59 (Iron Block)

• Displacement: 5.3 Liter (325 CID)

• Block Material: Cast Iron

• Cylinder Heads:

  • Performance Cathedral-Port Heads

  • Commonly known as “892-style / high-flow LS heads”

  • Improved airflow over stock truck heads

• Compression Ratio: ~9.5:1

• Valvetrain: Hydraulic roller lifters

• Fuel System: EFI compatible

• Aspiration: Naturally Aspirated (Turbo-ready with supporting mods)

Transmission Details (2WD)

4L60E Automatic

• 2WD configuration

• Electronic overdrive

• Street & light performance use

• Works great for classic trucks and street builds

What’s Included in the Package

✔ Fully rebuilt 5.3L LS engine
✔ Upgraded performance heads (892-style)
✔ 2WD automatic transmission (4L60E or 4L80E)
✔ Intake manifold
✔ Fuel injectors
✔ Coil packs
✔ Valve covers
✔ Oil pan (truck or retrofit pan)
✔ Flexplate installed

(ECU & wiring harness optional)

Horsepower & Performance

• Estimated Power: 340–370 HP (with performance heads)

• Strong low-end torque

• Excellent platform for:

  • Classic trucks

  • Muscle car swaps

  • Street / strip builds

  • Turbo or supercharger setups

Vehicle Compatibility

Fits many GM platforms including:

• Chevy Silverado / GMC Sierra (2WD)

• Chevy C10 / C1500

• Camaro / Firebird (LS swap)

• Hot rods & classic car swaps

Warranty

✅ 1-Year Limited Warranty
Covers internal engine components (proper installation required)