JDY Performance Kelford Valvetrain Kit – 2.0T/FSI

Complete High-Performance Valvetrain Solution

The JDY Performance Kelford Valvetrain Kit is a fully integrated upgrade package designed for high-performance EA888 engines operating under increased boost, elevated RPM, and extreme cylinder pressures.

This kit combines Kelford’s precision-engineered beehive valve springs and stainless performance valves with Supertech valve stem seals, delivering a balanced and reliable valvetrain system for both street and race applications.

What’s Included

• Kelford Beehive Valve Spring Set (KVS276-BT)
• Kelford Intake Valve Set
• Kelford Exhaust Valve Set
• Supertech Valve Stem Seals (Intake + Exhaust)

Key Features & Benefits

Designed for High Boost & High RPM Stability

Engineered to maintain precise valve control under aggressive cam profiles and increased boost levels, minimizing valve float and ensuring consistent performance at high engine speeds.

High-Temperature Stainless Steel Valves

The Kelford valves are manufactured from premium austenitic stainless steel alloys specifically developed for high-performance engine applications.

• Alloy composition includes chromium, nickel, and tungsten for enhanced strength and thermal stability
• Excellent resistance to heat, oxidation, and fatigue under extreme exhaust gas temperatures
• Maintains structural integrity in high cylinder pressure and forced induction environments

Triple-Groove Valve Lock Design (Drop-In Compatibility)

• Valves feature a precision triple-groove keeper design at the stem
• Fully compatible with OEM valve locks (keepers)
• No additional valve locks required, simplifying installation and reducing build complexity

Precision Forged & Heat Treated

• Forged construction ensures optimal grain structure and durability
• Advanced heat treatment process improves tensile strength and fatigue resistance
• Designed for long service life in demanding conditions

Beehive Valve Spring Technology

Kelford’s beehive spring design offers significant advantages over traditional spring setups:

• Reduced valvetrain mass for improved engine response
• Increased stability at high RPM
• Lower harmonic resonance for smoother operation and reduced wear

Complete Sealing Solution

• Includes Supertech valve stem seals for both intake and exhaust
• Ensures proper oil control and long-term reliability

Valve Specifications

Intake Valves

• Head Diameter: 33.90mm
• Stem Diameter: 5.98mm
• Overall Length: 104mm
• Tip Length: 5mm
• Triple-groove design – uses OEM valve locks

VEHICLE FITMENT BY ENGINE

VW & Audi - 2.0T FSI EA113 Engines

• AUDI - A4 2005-2008 (B7) 2.0T EA113 TFSI engines
• AUDI - A6 2005-2011 (C6) 2.0T EA113 TFSI engines
• AUDI - A6 Allroad 2005-2011 (C6) 2.0T EA113 TFSI engines
• AUDI - TT 2008-2015 (MK2 - 8J) 2.0T EA113 TFSI engines
• AUDI - A3 2006-2013 (MK2 - 8P) 2.0T EA113 TFSI engines
• VW - GTI 2006-2009 (MK5) 2.0T EA113 FSI engines
• VW - Jetta & Jetta GLI 2006-2010 (MK5) 2.0T EA113 FSI engines
• VW - Passat 2006-2010 (B6) 2.0T EA113 FSI engines
• VW - EOS 2006-2015 (1F7) 2.0T EA113 FSI engines

VW & Audi - 2.0T TSI EA888 Gen 1/2 Engines

• Audi - A4 2009-2015 (B8 - B8.5) 2.0T TSI EA888 Gen 1/2 engines*
• Audi - A4 Allroad 2009-2015 (B8 - B8.5) 2.0T TSI EA888 Gen 1/2 engines*
• Audi - A5 2008-2015 (B8 - B8.5) 2.0T TSI EA888 Gen 1/2 engines*
• Audi - Q5 2008-2015 (8R) 2.0T TSI EA888 Gen 1/2 engines*
• Audi - A6 2012-2015 (C7 - C7.5) 2.0T TSI EA888 Gen 1/2 engines*
• Audi - TT 2008-2015 (MK2 - 8J) 2.0T TSI EA888 Gen 1/2 engines*
• Audi - A3 2006-2013 (MK2 - 8P) 2.0T TSI EA888 Gen 1/2 engines*
• Audi - Q3 2011-2015 (8U) 2.0T TSI EA888 Gen 1/2 engines*
• VW - GTI 2006-2009 (MK5) 2.0T TSI EA888 Gen 1/2 engines*
• VW - GTI 2010-2014 (MK6) 2.0T TSI EA888 Gen 1/2 engines*
• VW - Jetta & Jetta GLI 2010-2014 (MK6) 2.0T TSI EA888 Gen 1/2 engines*
• VW - SportWagen 2011-2014 (MK6) 2.0T TSI EA888 Gen 1/2 engines*
• VW - CC 2009-2015 (3C8) 2.0T TSI EA888 Gen 1/2 engines*
• VW - Passat 2006-2010 (B6) 2.0T TSI EA888 Gen 1/2 engines*
• VW - EOS 2006-2015 (1F7) 2.0T TSI EA888 Gen 1/2 engines*
• VW - Beetle 2011-2015 (MK2) 2.0T TSI EA888 Gen 1/2 engines*

Exhaust Valves

• Head Diameter: 28mm
• Stem Diameter: 5.97mm
• Overall Length: 102mm
• Tip Length: 5mm
• Triple-groove design – uses OEM valve locks

Why This Kit?

Upgrading individual valvetrain components without proper matching can lead to instability and premature wear. This kit is designed as a complete system, ensuring:

• Correct spring pressure matched to valve mass
• Improved durability and reduced component stress
• Reliable performance across street, track, and high-power builds