Chevy 3.6L LFX V6 Remanufactured Engine – 2012-2017
Description
Meet strict commercial fleet maintenance benchmarks with 370 lbs of precision-machined powertrain engineering that outputs dependable V6 pulling power throughout the Chevy 3.6L LFX V6 Remanufactured Engine for 2012 to 2017 Chevrolet Impala models. This integrated-exhaust-manifold direct-injected High Feature engine restores crisp acceleration and exceptional fuel efficiency across high-mileage patrol sedans.
A precision-cast A319 aluminum cylinder block features cast-in iron liners diamond-honed to a 45-degree plateau finish. The forged 4340 steel crankshaft features induction-hardened journals paired with forged powdered metal connecting rods and hypereutectic aluminum pistons. Cylinder deck surfaces maintain an Ra 30 micro-inch finish. Engine dry weight measures 370 lbs, matched with a 6.0-quart structural aluminum oil pan.
Key Features of Chevy 3.6L LFX V6
Fleet directors choose to buy Chevy 3.6L LFX V6 remanufactured engine assemblies to eliminate timing chain rattle and restore optimal direct injection performance. Advanced CNC machining standards preserve exact running clearances across all critical moving components.
- 0.0012-inch main bearing clearances preserve hydrodynamic lubrication under high direct injection combustion pressures.
- Integrated cylinder head exhaust manifolds accelerate catalytic converter light-off and reduce overall mass.
- Dual overhead camshafts with four-cam continuous variable phasing optimize torque across wide RPM bands.
- Composite roller rocker arms reduce frictional drag to maximize continuous highway fuel economy.
- Multi-layer steel cylinder head gaskets maintain combustion seal across extreme thermal duty cycles.
- Chevy 3.6L LFX V6 upgraded inverted-tooth primary timing chains resist elongation and pitch wear.
- High-capacity variable displacement oil pump provides stable oil pressure through all four camshaft phasers.
Thermal Profiles Compression Limits
Operating lubrication pressures span 20 PSI at hot idle to 65 PSI during continuous highway cruise speeds. Thermostatic cooling circuits regulate block heat between 195°F and 210°F across harsh weather extremes. Dyno validation confirms 305 horsepower at 6800 RPM alongside 264 lb-ft torque at 5200 RPM. An 11.5:1 compression ratio generates 195 to 215 PSI cranking compression, radiating 2,750 BTU per minute through the radiator.
Driveline Interface Snout Dimensions
The rear crankshaft features an 8-bolt flexplate flange engineered for transverse GM six-speed automatic transaxles. Crankshaft thrust endplay gauges at 0.0030 to 0.0065 inches across ground thrust surfaces. The front snout measures 1.180 inches with a broached keyway to lock the front crank dampener against rotational vibration, backed by a PTFE oil seal.
Break-In Mandate Excluded Usages
Technicians must pre-lube the engine with an external pump through the oil filter housing port before cranking the starter motor. This powertrain package is not engineered for aftermarket superchargers, nitrous injection, marine inboard propulsion, or vehicles operating past manufacturer gross vehicle weight ratings.
- Check engine oil dipstick level and coolant expansion tank fluid level each shift.
- Change motor oil and replace spin-on oil filter cartridge every 5,000 miles.
- Inspect cooling fan operation, radiator hoses, and serpentine drive belt every 12 months.
Commercial Warranty Package Manifest
This engine package includes a 3-Year / 100,000-Mile commercial fleet warranty protecting enterprise operations against premature mechanical defects. The shipping pallet contains a remanufactured long block engine, high-capacity oil pump, full engine installation gasket set, and a certified machine shop clearance validation record.
Chevy 3.6L LFX V6 Remanufactured Engine – 2012-2017 Additional Info
| Weight | 320 lbs |
| Dimensions | 38 × 38 × 38 in |
| Important Notes | Dual VVT with 51mm Thrust Bearing on Cams, No SMOG, Front Cover #12639740 |
| Block Casting | 12629402 |
| Product Type | Engines |
| Displacement | 3.6L |
| Number of Cylinders | 6 |
| Block Type | V |
| Head Type | DOHC |
| Number of Valves | 24 |
| Head Gaskets Included | Yes |
Chevy 3.6L LFX V6 Remanufactured Engine – 2012-2017 Vehicle Fitment
| Year | Make | Model | Engine | Note |
|---|---|---|---|---|
| 2012 - 2015 | Cadillac | CTS | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Flex & Gas Fuel, No SMOG, Dual VVT, Front Cover #12639740 - Not Included, #2 dsctn 3/19/24, Dual VVT, High Mount W/P, 51mm Cam Thrust Bearing, No SMOG, Timing Cover Not Included |
| 2012 - 2015 | Chevrolet | Camaro | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, No SMOG, Dual VVT, Front Cover #12639740 - Not Included, #2 dsctn 3/19/24 |
| 2012 - 2016 | Buick | LaCrosse | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, No SMOG, Dual VVT, Front Cover #12639740 - Not Included, #2 dsctn 3/19/24 |
| 2012 - 2016 | Cadillac | SRX | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Dual VVT, No SMOG, No Timing Cover, #2 dsctn 3/19/24, Front Cover #12639740 - Not Included |
| 2012 - 2017 | Chevrolet | Caprice | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Dual VVT, No SMOG, Front Cover #12639740 - Not Included, #2 dsctn 3/19/24 |
| 2012 - 2020 | Chevrolet | Impala | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Flex & Gas Fuel, No SMOG, Dual VVT, Front Cover #12639740 - Not Included, #2 dsctn 3/19/24, Dual VVT, No SMOG |
| 2013 - 2015 | Cadillac | ATS | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Dual VVT, High Mount W/P, 51mm Cam Thrust Bearing, No SMOG, Timing Cover Not Included, #2 dsctn 3/19/24 |
| 2013 - 2017 | Chevrolet | Equinox | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Dual VVT, No SMOG, Front Cover #12639740 - Not Included, #2 dsctn 3/19/24 |
| 2013 - 2017 | GMC | Terrain | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Dual VVT, No SMOG, Front Cover #12639740 - Not Included, #2 dsctn 3/19/24 |
| 2013 - 2019 | Cadillac | XTS | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Dual VVT, No SMOG, Front Cover #12639740 - Not Included, #2 dsctn 3/19/24 |
| 2014 - 2016 | Chevrolet | Impala Limited | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Dual VVT, No SMOG, Front Cover #12639740 - Not Included, #2 dsctn 3/19/24 |
| 2015 - 2016 | Chevrolet | Colorado | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Dual VVT, High Mount W/P, 51mm Cam Thrust Bearing, No SMOG, Timing Cover Not Included, #2 dsctn 3/19/24 |
| 2015 - 2016 | GMC | Canyon | V6 3.6L 3564cc | Right Head Cast # 12633959 NO SMOG, Left Head Cast # 12633958 NO SMOG, Block Cast # 12629402, Dual VVT, High Mount W/P, 51mm Cam Thrust Bearing, No SMOG, #2 dsctn 3/19/24 |
You must be logged in to post a review.
Reviews
There are no reviews yet.