MX5 NA/NB LSx Mounting Kit




V8 Roadsters LSx swap kit has lead the way for Miata conversions since 2007. Multiple years of engineering, R&D, and real-world testing, offer the best solution for mounting the 3rd or 4th gen LSx platform. Both manual and automatic transmissions can be fitted using the F-Body T56 or 4L60e transmission. Our tubular subframe maintains all OEM suspension pickup points and steering geometry, with our engine placement that retains the great balance characteristic which made the Miata legendary.  CNC formed frame rails are designed to increase the torsional strength of the uni-body while doubling as the transmission mounting support.

Kit includes

  • CAD designed and multi-year tested lightweight tubular subframe for LSx engines.
  • Lightweight engine plates and Energy polyurethane mounts.
  • Transmission cross member with provisions for 3 exhaust routing for T56 transmission and Energy polyurethane mount. Made from DOM tubing.
  • Laser-cut and CNC profiled frame rails for added torsional strength and uni-body bracing.
  • Necessary hardware to install grade 8 or better zinc finished.
  • Dark gray gloss powder coat.
  • Mounting kits are also available in RHD models. Please contact us for details regarding RHD and international shipping rates.

Mounting kits are built to order. Lead times vary and it is best to contact us for the current lead time.

New transmission options available from Magnum F – Tremec TUET16363(wide ratio) and TUEt16362(close ratio).

Additional information

Weight 75 lbs
Dimensions 12 × 36 × 28 in

Customer Reviews

Based on 13 reviews

So I’m doing an SBC swapped Miata and I ordered lots of stuff pre getting this kit (that came with everything I could possibly need) and I had bought aluminum adapters for LS to SBC… come to find out, the motor mounts that come with the kit USE SBC bolt pattern and just have a plate with the LS pattern bolted on so my motor literaly just dropped in place, anyways, exited to see how it turns out :D

Diego Gonzalez
V8r Miata subframe

Great product arrived on time in great condition made with great matízales and has very look to it

A1 Product

There is a reason why everyone knows v8roadsters. Top notch quality products. Excellent customer service. Everything was packaged neatly and arrived in pristine condition. The welds are beautiful and the finish on the powder coating is just awesome.

Zach H
Very solid

Makes life so much easier

Brice Bertelsman

Very good quality

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