Miata NC LFX V6 Mounting Kit

(1 customer review)

$2,125.00

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SKU: V8R212 Categories: , , Brand:
(1 customer review)

The latest generation of V6 engines from GM has set the bar for performance and efficiency. The LFX is a DOHC 60 degree V6 rated at 320hp and 278lbs-ft and is used in many late GM model vehicles in different variants. With a 7200rpm redline, it matches closely to the Mazda BP engines. Direct fuel injected (flex fuel), and integrated exhaust manifolds should make for a 50 state CARB certifiable conversion. More info on the GM 3.6 liter V6 LFX engine. Our first thought on the conversion... AWESOME! The car brings OEM driveability with a smooth like stock feeling transmission and 7200rpm redline. The reliable 300+ hp and quick-revving make the car an absolute rocket ship. We were able to knock roughly 35lbs off the factory curb weight and retain a 52/48 distribution. With a baseline tune, the car averaged close to 30mpg round trip. With additional tuning and final adjustments to the intake and exhaust systems, we are confident we can exceed 30mpg for cruising. Part of the trip was working towards meeting California ARB standards. We've made a lot of headway here, and it's looking very positive.

The Kit Includes

All the parts needed to swap and mount the engine and transmission.

  • NC tubular subframe for LFX
  • Engine mounts with Energy poly bushings
  • Transmission mounts for MV5 or MV7 transmission

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

Additional information

Weight 70 lbs
Dimensions 36 × 29 × 11 in

1 review for Miata NC LFX V6 Mounting Kit

  1. Anonymous

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Q & A

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Good afternoon. I am interested in starting a Miata LFX build. I wanted to see are plans for an ND Miata LFX kit? Thank you. Tony asked on April 9, 2026

Hi Tony – Thanks for getting in touch! We currently don’t have plans to offer a DIY ND LFX kit.

Admin answered on April 14, 2026 store manager
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Given 8HP45 transmission popularity Will you be including this option For your complete LFX NC swap kit In the future? milnersXcoupe asked on February 1, 2026

Hi Brian - There are no plans to offer a complete kit for this transmission swap. The current components can be used with adapters if this is your preferred transmission.

Admin Admin answered on February 2, 2026 store manager
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Hi, what's the best donor car for the motor, trans and diff for this swap on a 2014 miata club please? And did you do a diy swap guide? Thanks! Yann Morlet asked on January 5, 2023

Hi Yann - the 5th gen Camaro is LFx. We provide a basic guide for the install and fabrication.

V8 Roadsters answered on January 16, 2023
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Is there a way to see what the mounts will look like Juan Garcia asked on November 22, 2022

Hi Juan - Please email us and we can provide pictures of the mounts for you. We do not have a way to attached them in this reply.

V8 Roadsters answered on November 28, 2022
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Are you going to be making a full kit like the LS swap? Zack asked on October 9, 2022

Hi Zack - no, not at this time.

V8 Roadsters answered on October 19, 2022
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