Premium CNC-Ported LS Cylinder Heads for Maximum Performance

Upgrade your LS engine with Golen Engine’s CNC-ported LS cylinder heads, engineered for maximum performance in both naturally aspirated and boosted builds. Available in 4-bolt and 6-bolt configurations, these heads are ideal for LS1 and LS3 platforms and are precision-crafted to deliver outstanding airflow and power gains.

Precision Milled LS Cylinder Heads

Every Golen LS head undergoes 5-axis CNC porting for unmatched accuracy and flow consistency. After porting, each head is hand-blended for smooth transitions, receives a 3-angle competition valve job, and is milled to your desired deck height for optimal compression. Final assembly is tailored to match your camshaft profile, ensuring top-end reliability and efficiency.

Key Components Include:

• LS3 Cylinder Heads: REV stainless steel 2.165" intake / 1.600" exhaust valves
• LS1 Cylinder Heads: REV stainless steel 2.020" intake / 1.600" exhaust valves
• Valvetrain: PAC Racing springs with titanium retainers
• Billet Rocker Arm Pedestals for added durability under extreme RPMs

These LS CNC cylinder heads are flow-tested, cleaned, and fully assembled in-house to the highest standards. Whether you're chasing track times or street dominance, Golen delivers proven performance backed by decades of LS engine expertise.

The Golen Engine Difference

At Golen Engine Service, our CNC-ported LS cylinder heads are designed to unleash the full potential of your LS engine build. Whether you're racing, cruising, or restoring, our performance-focused heads improve airflow, combustion efficiency, and overall horsepower output—making them an essential upgrade for any serious LS project.

We use state-of-the-art CNC equipment to precisely machine each cylinder head for optimal consistency and power gains. Every port, chamber, and valve seat is designed in-house by our experienced team with over 25 years of LS engine building expertise. That means you get race-proven engineering backed by real-world results—not guesswork.

Our CNC LS heads are available for a wide range of applications, including LS1, LS2, LS3, LS6, and LS7 platforms. Whether you’re looking for street performance heads or track-ready flow numbers, we have solutions tailored to your goals. Plus, we use only high-quality American-made castings and components to ensure long-term reliability under high-stress conditions.

Quality LS Engine Parts Guaranteed

All cylinder heads are flow-tested, cleaned, and inspected before shipment, and we’re happy to assist you with camshaft pairing, compression planning, or full engine build coordination. Trust Golen Engine Service to provide the performance and precision your LS build deserves.