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Dual valve spring kit

Dual valve spring kit
Dual valve spring kit
$489.00
For the most extreme Miata engine builds - with titanium retainers. Ooooo.

Availability: On backorder
You can place an order now and we'll reserve it for you. We are expecting the parts around September 21st, 2019.

Description

Details

For the most extreme Miata engine. If you're building a track car, are planning on extended run time above 7500 rpm or boost 18 psi or more - they're what you need.

Aluminum spring seat, chrome silicon steel springs and titanium retainer. Sold in sets of 16 for a complete head. Fits all NA and NB Miatas. NA valves will require the use of valve keepers from a NB engine (not included).

  Head Diam Pressure (lbs@mm) Max lift Coil Bind Rate
  O.D. (mm) I.D. (mm) Seat Open (lift) mm mm lbs./mm
1994-05 27.50 15.20 74 @ 34.2 177 @ 10.5 11.50 20.70 12.1
Additional Information

Additional Information

Part number 04-66602
TÜV approval available No
Fits: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004 (non-MSM), 2005 (non-MSM), MSM
Manufacturer Supertech
Flyin' Miata exclusive No
Fits Exocet? No
Proposition 65 Warning: Cancer and reproductive harm
California emissions No information at this time
Reviews
Instructions
Instructions for this part are not currently available online.