STK Performance Dual Racing Valve Spring Kit VW 1.8T 20v ( Exhaust )

Product Overview

Complete high-performance dual valve spring and forged valve kit for VW/Audi 1.8T 20v exhaust applications. Includes 21-4N Stainless Steel forged valves, Chrome Silicon dual valve springs, and Chromoly retainers. Rated up to 9000rpm.

Engine Applications

Fits: Golf Mk4 GTI · Audi A3 8L · Audi A4 B5 / B6 · Audi TT 8N · Seat Leon · Skoda Octavia · Passat B5 Engine codes NA — ADR, APT, ARG, AGN, AFY, AVC, ARH Turbo — AEB, AGU, AJH, AJL, AJQ, AMB, AMK, AMU, APH, APX, APY, AQX, AUM, AUQ, AWP, AWD, AWW, AWM, AWT, ARY, ARX, ARZ, AVJ, BAM, BEA, BEX, BFB, BJX, BBU, BKV, CFMA

What's Included

• 8 × inner valve spring
• 8 × outer valve spring
• 8 × Chromoly retainers
• 8 × Exhaust Forged Valve 30x6x104mm

Technical Specifications

Seating Pressure @ 34mm = 91lbs Full Lift = 200lbs Full Lift Pressure = 200lbs

Material Specifications

Forged Valves: 21-4N Stainless Steel - CNC machined, heat-treated Valve Springs: Premium Chrome Silicon Steel - Dual spring design Retainers: 4130 Chromoly Steel Performance Rating: 9000rpm capability Lift Capacity: Up to 14mm camshaft lift

Application

Designed for VW/Audi 1.8T 20v exhaust applications.

Installation Notes

Professional installation required. Not a straight forward replacement. Verify spring heights and valve travel to avoid coil bind.