Supertech Dual Valve Spring Kit | Multiple Nissan / Infiniti Fitments (SPRK-N370Z-1)

Nissan VQ37VHR Dual Valve Spring Kit by Supertech

Supertech Spring / Retainer kits are precision matched sets for a complete valvetrain overhaul. Developed for the performance enthusiast that wants the best the industry has to offer, Supertech Spring / Retainer kits are second to none in terms of performance, quality and value.

Features

• Seat Pressure: 70 @ 39.40
• Open Pressure: 197 @ 10
• Max Lift: 14.00mm
• Coil Bind: 22.80mm
• Rate: 12.7
• Kit spring: SPR-N370Z-IN ; SPR-N370Z-EX
• Retainer: RET-H55BE/T1 ; RET-TS5.5/T1F-BE
• Valve locks: KPR-5.5/7A-ST
• InnSpr.ID: 14.50mm
• InnSpr.OD: 24.20mm
• OutSpr.ID: 18.80mm
• OutSpr.OD: 28.00mm

Benefits

• Underwent a gas nitriding process before shot peening for improved fatigue life

Applications

• 2008–2013 Infiniti G37 Coupe
• 2008–2014 Nissan Skyline V36 370 GT Coupe
• 2009–2014 Infiniti G37 Sedan
• 2009–2014 Nissan Skyline V36 370 GT Sedan
• 2009–2013 Infiniti G37 Convertible
• 2009–present Nissan Fuga 370GT
• 2009–2013 Infiniti FX37 325 hp
• 2009–2013 Infiniti EX37 325 hp
• 2009–2020 Nissan 370Z/Fairlady Z
• 2009–2020 Nismo 370Z NISMO
• 2011–2013 Infiniti M37
• 2011–2016 Infiniti IPL G37 Coupe
• 2013 Infiniti IPL G37 Convertible
• 2015 Infiniti Q40 Sedan
• 2014–2015 Infiniti Q50 (VQ35 & VQ37)
• 2014–2016 Infiniti Q60 (VQ37)
• 2014–2019 Infiniti Q70
• 2014–2017 Infiniti QX50
• 2014–2017 Infiniti QX70

What's In The Box?

• 24 - Springs
• 24 - Retainers
• 48 - Valve Locks

Warranty

• Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.