Supertech

Valve Spring Kit [7.70mm Rate, 12.80mm Max Lift]

$361.27

SKU: 151-147-016

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Supertech Conical Valve Spring Kit is engineered for enhanced performance in Mazda MX-5 NC (Mk3) 2.0 vehicles. This kit utilizes a dual spring design, offering a specific rate of 7.70mm and a coil bind measurement of 23.20mm. It is capable of supporting a maximum lift of 12.80mm, making it suitable for performance-oriented engine builds. The specifications include a press open force of 144 lbs at 10mm, and a press seat force of 67 lbs at 37.9mm. The inner spring has an ID of 14.4mm and an OD of 21.20mm, while the outer spring features an ID of 17.50mm and an OD of 24.30mm.

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.

Fitment

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Specifications

BrandSupertech
Part Number151-147-016
CategoryEngines and Components

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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

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