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Toyota Supra 2JZGTE Supertech Inconel Exhaust Valve Kit  286.20 
Ex Tax of 20% 

Overview

Made as a one piece forged valve for higher strength and reliability, Supertech use mostly EV8 (21-4N) for Intake and Exhaust valves but there are other alloys that we use along with different heat treatments to manufacture valves for different applications.

Black Nitriding:

This is a hardening treatment that even though it is not widely used as the chrome coating, it has several benefits and is becoming very popular, mainly for European and Japanese applications.
The microhardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum). Surface finish is smoother than with chromed stems, having less friction between stem and guide.
Valve seat surface is harder with the nitrided layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats).

Specification

 

Part Number

TEVI-1014

TEVI-1016

Engine Type Supra 2JZGTE Turbo
Head Size

29mm (Std)

30mm (+1mm)

Stem Diameter 5.97mm
Length 99.1mm
Material Inconel

 

Available Options:
2JZGTE Exhaust valve options:
TEVI-1014 
TEVI-1016 
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