821/823 LS Porting Service (Pair)

Maximize Your Engine’s Performance with ModCo Racing’s High-Performance Cylinder Head Porting!

At ModCo Racing, we specialize in precision cylinder head porting for both OEM and aftermarket heads, delivering unmatched power and efficiency for your engine. Whether you’re upgrading an existing setup or building a high-performance engine from the ground up, our expert porting process ensures you unlock every bit of potential.

Our Proven Porting Process Includes:

• Teardown, Cleaning & Inspection: We begin with a detailed teardown, cleaning, and inspection to ensure your heads are in top condition.
• 5-Axis CNC Porting: Using advanced 5-Axis CNC technology, we optimize the intake, exhaust, and chambers for maximum airflow and power.
• Pressure Testing: Leak testing ensures perfect sealing and reliability under high-performance conditions.
• Precision Valve Job: Our precision valve jobs guarantee optimal valve sealing for peak performance.
• Deburring: We smooth out all sharp edges to improve airflow and prevent damage.
• Perfect Surfacing for MLS Gaskets: The cylinder head surface is machined for perfect flatness, ensuring a perfect fit with MLS head gaskets.
• Final Wash & Assembly: Thorough cleaning and reassembly ensure your heads are race-ready and optimized for performance.

Why ModCo Racing?

• Proven results with increased power and efficiency for all racing applications.
• Unmatched attention to detail and strict quality control at every step.
• Built to withstand the toughest racing conditions.

Don’t settle for less — unlock the full potential of your engine with ModCo Racing’s high-performance cylinder head porting. Get in touch with us today and take your engine to the next level!

Please read Packaging and Shipping for information about sending your heads!