FEATURED BRAND = COVERKING CHECK OUT COVERKING NOW

Auto Barn
Est. 1957
Supertech

Supertech Nissan RB25 Inconel Exhaust Valve- +1mm Oversize - Set of 12

$483.74

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Supertech Nissan RB25 Inconel exhaust valves, +1mm oversize. Set of 12.

Key Features

  • Fits Nissan RB25 engines.
  • Set includes 12 Inconel exhaust valves.
  • Valves are +1mm oversize for improved sealing and flow.
  • Constructed from Inconel, a superalloy resistant to high heat and corrosion.
  • Suitable for performance and high-stress engine builds.
Secure CheckoutFast Shipping631-982-0042
About this part

Product Details

If you're rebuilding the top end of your Nissan RB25 engine, especially for performance applications, these Supertech Inconel exhaust valves are a solid choice. They are designed to handle the higher temperatures and stresses that come with boosted or high-RPM operation. The +1mm oversize helps restore compression and can improve flow when used with ported cylinder heads.

These valves are made from Inconel, a high-nickel, high-chromium superalloy known for its exceptional strength and resistance to extreme heat and corrosion. This material is crucial for exhaust valves, as they endure the hottest gases exiting the combustion chamber. The +1mm oversize means these valves are slightly larger in diameter than stock, which is typically done to improve sealing and airflow when the valve seats have been reconditioned or replaced to accommodate the larger size.

This set includes 12 valves, enough for a complete RB25 engine. When installing, ensure your valve guides and seats are properly machined to accept the +1mm size for optimal performance and sealing.

Specifications

Brand
Supertech
Manufacturer Part #
NEVI-1052-SL-12
UPC
01037721244943

Frequently Asked Questions

Supertech Nissan RB25 Inconel Exhaust Valve- +1mm Oversize - Set of 12

$483.74