Michigan Motorsports 2.165" LS3 Lightweight Hollow-Stem Intake Valves | Set of 8 | GM #12569427 | Fits L76 L77 L92 L99 LY6 L94 L96 Cylinder Heads

Upgrade your LS engine with the Michigan Motorsports Lightweight Hollow-Stem Intake Valve Set (8 total, GM P/N 12569427). Engineered to OEM dimensions, these hollow-stem stainless valves reduce weight by approximately 88 grams each, significantly improving valvetrain stability and eliminating valve float in high-RPM builds. Designed as direct-fit replacements for L76, L77, L92, L99, LY6, L94, and L96 heads, they are ideal when installing aggressive camshafts or pushing the limits of performance. Sold as a complete 8-piece set, this kit ensures complete engine readiness and lasting performance.

• Hollow-Stem Lightweight Design – Offers a mass reduction (~88g per valve) for improved high-RPM valvetrain stability and reduced valve float.
• Factory OEM Specifications – Large 2.165″ head diameter on 8mm stems with 15° face angle, fitting LS3-type cathedral-port heads precisely.
• Full Engine Coverage – Includes a complete set of 8 intake valves—ready for full cylinder bank replacement in performance builds.
• Built for High Performance – Constructed to withstand the rigors of high-RPM street or track applications while maintaining OEM-level durability.
• Easy Upgrade Path – Great for rebuilds or valvetrain upgrades when installing larger camshafts or enhancing airflow efficiency.