Mazworx Shimless SR20VE All Motor Intake & Exhaust Valves

The Mazworx Shimless SR20VE All Motor Intake & Exhaust Valves are precision-engineered for high RPM, naturally aspirated SR20VE engine builds. Designed specifically for Nissan SR20 engines, these valves offer enhanced durability and improved airflow characteristics necessary for high-performance applications.

Key Features

• Intake Valves: Increased diameter of 37mm (+2.85mm) with a 5.5mm stem diameter to boost air intake efficiency.
• Exhaust Valves: Enlarged 30mm diameter (+0.85mm) paired with a 5.5mm stem to improve exhaust flow.
• Valve Retainers and Keepers: These valves require 5.5mm retainers and keepers for proper installation and secure operation.
• Compatibility: Only compatible with P11 cylinder heads modified to accommodate 5.5mm guides.
• Shimless Design: Valve lash is adjusted by tipping the valve, simplifying tuning and maintenance.
• Intake Valve Seats: Replacement with larger intake valve seats is necessary to match the increased valve size.

The Mazworx Shimless valves are ideal for engine builders seeking reliable high-RPM performance without forced induction. By increasing valve sizes, these components improve volumetric efficiency and support higher engine speeds, making them a preferred choice for all-motor SR20VE builds. Proper installation is critical, including upgrading valve guides and seats as specified.

Enhance your Nissan SR20 VE engine with these thoughtfully designed valves to maximize power and durability in high-revving conditions.