Chevy LSX-LS3 Cylinder Head

Description

Take your LS build to the next level with the Chevy LSX–LS3 Cylinder Head, designed for serious horsepower applications. Engineered with LSX high-strength castings and LS3-style rectangular intake ports, these heads deliver exceptional airflow, boost-ready durability, and precision machining — making them the ideal choice for high-performance street, strip, or forced-induction builds.

Whether you’re assembling a naturally aspirated stroker or a supercharged/turbocharged beast, the LSX–LS3 heads are built to handle extreme cylinder pressures while maintaining OEM-style fitment and reliability.

Product Details:

• Product Type: Cylinder Head (Bare or Assembled Options Available)

• Model: LSX–LS3

• Material: High-strength GM LSX cast iron or reinforced aluminum

• Port Style: LS3-style rectangular intake ports (high-flow)

• Valve Sizes (Typical Assembled): 2.165″ intake / 1.590″ exhaust (LS3 spec)

• Combustion Chamber Volume: 68–70cc (nominal)

• Condition: Brand New

• Finish: Machined / Bare Aluminum or Cast Finish (depending on model)

• Shipping: Fast Nationwide Delivery 🇺🇸

Key Features:

• ✅ LSX Strength – Built from race-grade LSX castings to handle extreme boost and RPM

• ✅ LS3 Airflow – Rectangular port design for maximum intake flow and power potential

• ✅ Boost-Ready – Perfect for turbocharged and supercharged builds

• ✅ High HP Capability – Designed to support 600–1,000+ HP applications

• ✅ Direct LS Fitment – Compatible with LS3/LSX platforms without extensive modifications

Compatibility:

• Fits the following LS-based engines and builds:

  • LSX, LS3, L92, L99, and similar rectangular-port LS variants

• Applications:

  • High-performance street cars

  • Drag racing, road racing, and forced-induction builds

  • LS swaps into classic cars and trucks

• Works with most OEM and aftermarket intakes, headers, and valvetrain setups (pushrod length check recommended)

🛡️ Warranty Information:

• 1-Year Limited Warranty against manufacturer defects in materials and workmanship

• Professional installation required for warranty eligibility

• Excludes damage from racing abuse or improper installation