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VW KR, 9A & ABF Turbo Supertech Inconel Exhaust Valve Kit (Turbo use)  234.00 
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

VWEVI-1032F + KPR-VW7-S (Std ABF)

VWEVI-1034F + KPR-VW7-S (Std K9 & 9A)

VWEVI-1035 + KPR-VW7-S

VWEVI-1037 + KPR-VW7-S

Engine Type All VW KR, 9A and ABF engines. Check valves sizes against originals before ordering.
Head Size

VWEVI-1032F - 27mm (Std ABF)

VWEVI-1034F - 28mm (Std K9 & 9A)

VWEVI-1035 - 28.5mm

VWEVI-1037 - 29.5mm

Stem Diameter 6.96mm
Length 98.2mm
Material Inconel

These valves require the use of Supertech Valve locks. The locks (and their cost) have been included in this item and it's price.

Available Options:
VW 1.8 & 2.0 Exhaust valve optio:
VWEVI-1032F+KPR-VW7-S 
VWEVI-1034F+KPR-VW7-S 
VWEVI-1035+KPR-VW7-S 
VWEVI-1037+KPR-VW7-S 
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