Supertech Toyota 2JZ Inconel Exhaust Valve - +1mm Oversize - Set of 8

Crafted from Inconel, a high-nickel alloy known for its exceptional heat and corrosion resistance, these Supertech exhaust valves are built to handle the demands of a high-performance Toyota 2JZ engine. Each valve is precisely machined to be 1mm oversize, offering a larger sealing surface for improved compression and performance, especially when rebuilding or upgrading your cylinder head. This set includes eight valves, enough for a complete engine.

The choice of Inconel is critical for exhaust valves because they operate under extreme temperatures and harsh conditions. This material maintains its strength and integrity at temperatures that would cause lesser steels to warp or fail. The +1mm oversize design is a common choice for tuners looking to restore lost performance in worn valve seats or to gain a slight edge in sealing efficiency. Installing these valves requires careful attention to valve seat conditioning and proper assembly, ensuring they seat perfectly for optimal engine function.