Supertech Dual Valve Spring Kit for 4G63 EVO/DSM/VR-4

This kit contains 16 dual springs, 16 titanium retainers, 16 valve seats, and reduced O.D. valve seals specifically designed for 4G63 Evo, DSM, and VR4 engines. There are four choices for the pressure seat, so thorough research and consultation with your engine builder are recommended.

Supertech valve springs are made with premium steel alloy for high performance & durability. Our computer-designed springs have controlled harmonics and ensure optimal stress levels for enhanced durability in extreme conditions. Our retainers are made with top-quality titanium alloy for a secure fit.

 

Choose between or Four options :

• SUP-SPRK-M1005D
• SUP-SPRK-M1007D
• SUP-SPRK-M1007D-2
• SUP-SPRK-M1007D-3

 

Specifications:

SPRK-M1005D 

• Seat Pressure: 80 @ 39.6
• Open Pressure: 200 @ 11.5
• Max Lift: 16.00mm
• Coil Bind: 23.50mm
• Rate: 10.5
• Inner Spring ID: 15.20mm
• Outer Spring ID: 20.00mm
• Outer Spring OD: 28.10mm
• Inner Spring OD: 20.00mm
  

 

SPRK-M1007D

• Seat Pressure: 92 @ 39.6
• Open Pressure: 235 @ 11.5
• Max Lift: 14.90mm
• Coil Bind: 24.70mm
• Rate: 12.5
• Inner Spring ID: 15.20mm
• Outer Spring ID: 20.00mm
• Outer Spring OD: 28.10mm
• Inner Spring OD: 20.00mm
  

 

SPRK-M1007D-2

• Seat Pressure: 100 @ 39
• Open Pressure: 243 @ 11.5
• Max Lift: 14.30mm
• Coil Bind: 24.70mm
• Rate: 12.5
• Inner Spring ID: 15.20mm
• Outer Spring ID: 20.00mm
• Outer Spring OD: 28.10mm
• Inner Spring OD: 20.00mm
  

 

SPRK-M1007D-3

• Seat Pressure: 110 @ 38.1
• Open Pressure: 253 @ 11.5
• Max Lift: 13.40mm
• Coil Bind: 24.70mm
• Rate: 12.5
  
• Inner Spring ID: 15.20mm
• Outer Spring ID: 20.00mm
• Outer Spring OD: 28.10mm
• Inner Spring OD: 20.00mm
  

 

 

Vehicle Fitment:

Lancer Evolution I-IX 1992-2006

Eclipse GSX/GST 1990-1999

Galant VR-4 1989-1993

Talon TSI 1990-1998

Laser RS 1990-1994