GM 3.6L LFX Engine: Complete Specs, Power, and Vehicle List for RX-8 Swaps
If you're considering an engine swap for your Mazda RX-8, the GM LFX 3.6L V6 engine is one of the best choices available. Found in several GM vehicles from 2012 to 2017, this modern, reliable engine offers outstanding power, efficiency, and aftermarket support. Below, you'll find detailed specifications, power output data, and a complete list of vehicle applications to guide your swap project.
Photo Credit: 3.6 VVT Engine – Chevrolet Camaro V-6 by Michael Sheehan, licensed under CC BY 2.0.
GM 3.6L LFX Engine Technical Specifications
| Specification | Details |
|---|---|
| Engine Code | LFX |
| Type | Naturally Aspirated, DOHC 60° V6 |
| Displacement | 3.6 liters (3564 cc / 217 cu in) |
| Bore × Stroke | 94 mm × 85.6 mm (3.7 in × 3.37 in) |
| Block Material | Aluminum Alloy |
| Cylinder Heads | Aluminum Alloy |
| Valvetrain | DOHC, 24-valve with Variable Valve Timing (VVT) |
| Fuel System | Direct Injection |
| Compression Ratio | 11.5:1 |
| Redline RPM | ~7200 RPM |
| Fuel Type | 87-91 Octane (Regular Unleaded) |
| Oil Capacity | Approx. 6 quarts (5.7 liters) |
| Engine Weight | ~360 lbs (fully dressed) |
GM LFX Engine Horsepower & Torque Ratings
| Vehicle Model | Horsepower | Torque |
|---|---|---|
| Chevrolet Camaro (2012–2015) | 323 hp @ 6800 RPM | 278 lb-ft @ 4800 RPM |
| Cadillac CTS (2012–2015) | 318 hp @ 6800 RPM | 275 lb-ft @ 4900 RPM |
| Cadillac ATS (2013–2015) | 321 hp @ 6800 RPM | 274 lb-ft @ 4800 RPM |
| Chevrolet Impala (2012–2013) | 300 hp @ 6500 RPM | 262 lb-ft @ 5300 RPM |
| Buick LaCrosse (2012–2016) | 303 hp @ 6800 RPM | 264 lb-ft @ 5300 RPM |
| Buick Regal GS (2014–2017) | 310 hp @ 6800 RPM | 282 lb-ft @ 5200 RPM |
| Chevrolet Equinox (2013–2017) | 301 hp @ 6500 RPM | 272 lb-ft @ 4800 RPM |
| GMC Terrain (2013–2017) | 301 hp @ 6500 RPM | 272 lb-ft @ 4800 RPM |
Vehicles Equipped with GM LFX Engine (2012-2017)
Cars and Sedans
- Chevrolet Camaro LT: 2012–2015
- Chevrolet Impala LT/LTZ: 2012–2013
- Chevrolet Caprice PPV: 2012–2017
- Cadillac CTS Sedan/Coupe/Wagon: 2012–2015
- Cadillac ATS Sedan: 2013–2015
- Buick LaCrosse: 2012–2016
- Buick Regal GS: 2014–2017
SUVs and Crossovers
- Chevrolet Equinox: 2013–2017
- Chevrolet Traverse: 2013–2017
- GMC Terrain: 2013–2017
- GMC Acadia: 2013–2016
- Buick Enclave: 2013–2017
- Cadillac SRX: 2012–2016
Why the LFX Engine is Perfect for an RX-8 Swap
The GM LFX engine offers excellent horsepower-to-weight ratio, proven reliability, affordability, and ease of tuning. Combined with aftermarket support from companies like Keisler Automation’s RX8 Totality LFX Swap Kit, the LFX swap provides RX-8 enthusiasts with reliable, high-performance results that retain the RX-8's iconic handling characteristics.
Final Thoughts
Whether you're just researching engine swaps or already in the middle of your project, understanding the technical details and vehicle applications of the GM LFX V6 is essential. Follow my personal RX-8 LFX swap journey here at Weekend Wrencher, articles start here --> RX-8 Shinka build
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