Engines and Components› Camshafts and Valvetrain

Supertech

Performance Valve Spring Kit

$1,097.29

SKU: SPRK-TS1015/N35

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In Stock
Ships by Sep 12
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$100 Minimum Order
30 Days Return
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Overview

Developed for performance enthusiasts, these kits offer high performance, quality, and value. The springs are made from Superclean Chrome Silicon Vanadium steel alloy and undergo a gas nitriding process before shot peening to improve fatigue life.
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Each kit includes springs, retainers, and seat locators, all crafted from Superclean Chrome Silicon Vanadium steel alloy. This material is known for its toughness and is treated with a gas nitriding process followed by shot peening to enhance fatigue life. The specifications for this kit include a maximum lift of 14.50mm, a seat pressure of 82 lbs at 35mm, and an open pressure of 202 lbs at 10mm. The coil bind is rated at 20.70mm, with a spring rate of 12.10mm. The inner springs have an ID of 15.20mm and OD of 20.00mm, while the outer springs have an ID of 20.00mm and OD of 27.50mm. This kit is compatible with various Nissan and Infiniti models, including the 2001–2004 Nissan Pathfinder, 2002–2018 Nissan Altima, 2002–2006 Nissan 350Z, and 2002–2007 Infiniti G35 Coupe/Sedan, among others. This kit is sold without any express warranty or implied warranty of merchantability or fitness for a particular purpose due to the nature of its application.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandSupertech
Part NumberSPRK-TS1015/N35
CategoryEngines and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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