Manley 11189-12 Race Master Exhaust Valves 33.5mm for Toyota 1FZ-FE

The Manley 11189-12 Race Master exhaust valve set is engineered specifically for Toyota 4.5L 1FZ-FE DOHC 24-valve engines found in Land Cruiser and Lexus LX450 applications. This complete set includes 24 high-performance exhaust valves designed to meet the demanding requirements of bracket racing, drag racing, oval track competition, and high-performance street engines operating under 8000 RPM.

Premium Construction and Materials:

• Manufactured from XH-426 stainless steel for exceptional durability and heat resistance
• 33.5mm head diameter with 99mm overall length
• 0.2740-inch stem diameter for precise fitment
• Chrome-plated stems for superior wear resistance and reduced friction
• Hardened valve tips to withstand high-stress camshaft contact
• Race Master straight stem design for optimal flow characteristics

Performance Features:

• Swirl polished underhead areas maximize airflow efficiency
• Fully machined combustion faces ensure consistent sealing and heat dissipation
• Recommended for alcohol-fueled racing engines
• Ideal for high-performance builds requiring reliable valve train components

Manley Performance strongly recommends checking valve guide sizes to achieve proper valve stem-to-guide clearance. Guides may require honing when replacing factory valves to ensure optimal performance and longevity.