STK Performance Valve Set Forged SS VW 8v | Restomod
examples : clutch or chevy LS2 or 255/60R17

STK Performance Valve Set Forged SS VW 8v

STK Performance Valve Set Forged SS VW 8v
R1,795.00
SKU:  ss21-4n-078ie
Stock Availability: 
In Country - 2 to 4 Days
Description: 

Product Overview

High-performance forged valve manufactured from 21-4N Stainless Steel. One-piece forged construction for exceptional strength and durability. CNC machined and heat-treated for consistency. Precision stem finish for low friction, hardened tips to resist wear.   4 x Exhaust Valve 214-N 33mm x 7mm x 118mm 4 x Inlet Valve 214-N 40mm x 7mm x 118mm  

Engine Applications

Fits: Golf Mk1 / Mk2 / Mk3 · Jetta · Passat · Caddy · Polo · Corrado · Audi 80 / 90

Engine codes
1.6 — EG, EW, EZ, PN, RF, AEK, AEA, AEE, AFT, AKS, ABU, ALM, APF, ARM
1.8 — DX, EV, PB, PF, GX, GU, JH, RD, RV, RP, PM, AAM, ABS, ADZ, ANN, ANP, KT, JJ, DZ, 2H, ACC
2.0 — 2E, AGG, ADY, AAD, AAE, ABK, ABT, ABA, ATM, AZJ, APK, AQY

Material Specifications

Material: 21-4N Stainless Steel forged valve Temperature Rating: Above 540°C (1000°F) Features: Undercut stems and back-cut heads for enhanced airflow

Key Benefits

Reduced valve mass for quicker engine response Improved flow characteristics for maximum power Heat and pressure resistance for extreme combustion conditions Long-term durability in high-performance applications

Installation Notes

Professional installation recommended. Correct spring heights and valve travel must be verified to avoid coil bind. For camshaft installations, always check piston-to-valve clearance and verify spring installed height. Use high-zinc break-in oil on first start. This component forms part of the valve train system and must be selected to suit the intended engine configuration, RPM range, and camshaft design.
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