1977 Cessna 340 RAM IV 650 HP
This 1977 Cessna 340A RAM conversion is one of the finest and most comprehensively upgraded examples of its type available today. Combining twin RAM factory-overhauled Continental TSIO-520-NB engines, a state-of-the-art Garmin G500 TXi glass panel, GFC 600 digital autopilot, and a meticulously preserved airframe, this aircraft represents the pinnacle of the pressurized piston-twin category. With complete logs since new, no major damage history, no corrosion, and consistent professional maintenance, this 340A delivers the comfort, capability, and safety demanded by discerning owners. Whether for personal or business operations, this aircraft is fully equipped and turnkey ready — a true blend of power, technology, and elegance in flight.
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General Information
Total Time (Airframe): 4,557 hours
Left Engine Time: 681 hours SFOH (RAM Factory Overhaul – Feb 2022)
Right Engine Time: 681 hours SFOH (RAM Factory Overhaul – Feb 2022)
Left Propeller Time: 681 hours SNEW (RAM Scimitar Prop)
Right Propeller Time: 681 hours SNEW (RAM Scimitar Prop)
Useful Load: 1,800 lbs
Condition: Used – Excellent
Paint Year: 2023 (New modern finish)
Interior Year: 2023 (Refreshed leather interior)
Flight Rules: Both VFR and IFR Certified (BTH)
Seating Capacity: 6
This Cessna 340A RAM exemplifies the evolution of the classic pressurized twin — a model that continues to deliver impressive capability and comfort nearly five decades after its debut. With its RAM Series IV powerplants, this aircraft achieves a perfect balance between performance, reliability, and efficiency. The total time reflects private use and consistent flight activity — currently flown weekly — ensuring systems remain exercised and operationally healthy.
This aircraft was never idle or neglected, a critical advantage for long-term reliability. Every inspection, upgrade, and flight has been logged and documented with precision. Always hangared and maintained in a dry environment, it exhibits no corrosion, no structural fatigue, and a clean history of careful ownership.
Airframe
Total Time: 4,556.7 hours
Configuration: Pressurized, all-metal twin-engine cabin-class aircraft
Condition: Excellent – always hangared
History: No Major Damage History (NMDH), with full logs since day one
Features and Modifications:
Factory-installed full de-ice system including wing, tail, and windshield boots.
Heated propellers and pitot/static systems for complete anti-ice protection.
New LED exterior lighting – bright, energy-efficient, and low-maintenance.
2023 exterior repaint – crisp, elegant finish reflecting modern color trends.
Upgraded oxygen system, fully functional and integrated with cockpit panel.
Pressurization system providing up to 5.5 PSI differential – maintaining comfort at altitude.
Air conditioning system completely overhauled in 2024 for exceptional cabin climate control.
All windows and seals inspected and in excellent condition; no fogging or leaks.
Updated static wicks, lightning protection, and bonding checks completed during last annual.
Always hangared – no evidence of UV wear, corrosion, or environmental exposure.
The Cessna 340A airframe remains one of the most structurally robust and aerodynamically refined designs of the 1970s. With its pressurized fuselage, wide cabin, and trailing-link landing gear, it delivers a smooth, stable, and efficient ride at altitudes where weather avoidance and fuel economy converge. This particular aircraft has benefited from a lifetime of care, and it shows in every panel line, rivet, and inspection cover.
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Engines
Model: RAM Continental TSIO-520-NB (Factory Overhauled by RAM Aircraft, February 2022)
Power Output: 325 HP per side (650 HP total)
Left Engine Time: 681 hours SFOH
Right Engine Time: 681 hours SFOH
Engine Features & Notes:
Both engines overhauled by RAM Aircraft (Waco, Texas) to factory standards.
Matched times between left and right engines – balanced performance and maintenance scheduling.
Chrome cylinder assemblies with factory-new internals and balanced crankshafts.
Turbocharged, fuel-injected system with intercoolers for efficient high-altitude power.
Equipped with JPI EDM 760 engine monitor for precise CHT, EGT, and TIT management.
Consistently excellent compression readings and smooth running characteristics.
Flown weekly to ensure lubrication and operational readiness.
Performance Highlights:
Cruise Speed: 210–220 knots true at 65–70% power (FL200).
Climb Rate: 1,800 FPM initial climb, sustaining 1,200+ FPM through mid-altitudes.
Service Ceiling: 29,800 feet.
Fuel Burn: Approximately 32–34 GPH total at cruise power settings.
The RAM factory overhaul ensures both engines meet or exceed factory-new specifications. The RAM Series IV modification enhances smoothness, cylinder life, and cooling efficiency — critical for maintaining reliability in a pressurized twin. Both engines operate with balanced fuel flow and uniform EGT distribution, indicating careful operation and proper tuning.
The JPI EDM 760 engine monitor allows pilots to observe every aspect of performance in real time, promoting lean-of-peak or rich-of-peak operation as desired while extending engine life. The engines are in excellent condition, with full RAM documentation and invoices available.
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Propellers
Make/Model: Hartzell Scimitar (3-Blade, Full-Feathering, Heated)
Left Propeller: 681 hours SNEW (installed new April 2022)
Right Propeller: 681 hours SNEW (installed new April 2022)
Condition: Excellent – dynamically balanced and regularly maintained.
Notes:
Heated propellers provide full compatibility with the aircraft’s de-ice system.
Modern Scimitar blades improve climb and cruise efficiency while reducing vibration.
Matched installation times ensure even wear and maintenance cycles.
No blade erosion or hub leaks; all ADs and inspections current.
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The Scimitar-style props not only enhance ramp appeal but deliver measurable aerodynamic benefits. Takeoff acceleration and single-engine climb performance are improved, while the aircraft remains notably smooth and quiet in flight. Their polished finish and heating capability make them both functional and visually impressive.
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Avionics & Equipment
Primary Flight Display: Garmin G500 TXi (touchscreen, glass cockpit)
GPS/NAV/COMM #1: Garmin GTN 750 (WAAS/LPV certified touchscreen navigator)
GPS/NAV/COMM #2: Garmin GNS (secondary unit with full NAV/COMM functionality)
Transponder: Garmin GTX 345 (ADS-B In/Out compliant, displaying traffic and weather)
Autopilot: Garmin GFC 600 (digital autopilot with coupled approach, altitude preselect, VNAV, and ESP stability protection)
Audio Panel: PSI Engineering 8000 BT (Bluetooth capable, providing crystal-clear audio and wireless connectivity)
Engine Monitoring: JPI EDM 760 (twin-engine graphic engine monitor with full data logging)
Fuel Management: Shadin Fuel Totalizer (digital display for accurate fuel flow and total remaining)
Additional Features:
Dual USB power ports in cockpit for mobile devices and EFB support.
Integrated ADS-B weather and traffic displayed on the G500 TXi.
Backup analog gauges remain for essential redundancy.
All avionics professionally installed and fully interfaced – no loose wiring or intermittent connections.
IFR certified and fully compliant with current FAA ADS-B requirements.
This Garmin-centric avionics suite represents the most advanced upgrade path available for legacy pressurized twins. The G500 TXi provides a crisp, full-color touchscreen display with synthetic vision, flight director integration, and full autopilot coupling through the GFC 600. The system enables precision IFR navigation with LPV approaches and GPS steering, giving pilots modern jet-like situational awareness.
With the addition of Bluetooth connectivity and digital engine instrumentation, cockpit workload is reduced, safety is increased, and operational management becomes intuitive. Every switch, button, and display reflects a modern, professional cockpit experience.
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Interior
Year Refurbished: 2023
Condition: Excellent – rated 9/10
Seating: Six seats in club configuration
Upholstery: Premium leather with contrasting stitching
Trim: Updated panels and carpet; clean, odor-free environment
Layout: Pilot/co-pilot forward seating, four-passenger club-style rear cabin
Features:
Freshly refurbished leather seats, soft and supportive for long flights.
Matching sidewalls and headliner finished in light tan tones for a spacious feel.
New carpet throughout, with reinforced entryway protection.
Fold-down executive tables and storage pockets in the club area.
Refurbished cabinetry and trim with satin accents.
Overhauled air conditioning ensures comfort even during ground operations.
Fully functional pressurization and ventilation systems with consistent cabin cooling.
Soundproofing and insulation maintained to original or better specifications.
The cabin of this 340A offers business-class comfort for up to six passengers, with legroom and quietness rivaling light turboprops. The refreshed 2023 interior presents like new — clean stitching, taut upholstery, and elegant color coordination throughout. The attention to detail is evident, from the smooth-operating seat rails to the functional lighting and window shades.
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Exterior
Paint Completed: 2023
Condition: Excellent – rated 9/10
Color Scheme: Contemporary design with metallic accents and clean lines
Storage: Always hangared
Corrosion: None reported
This 340A’s exterior shows beautifully, with a modern paint scheme applied in 2023 using high-quality materials and techniques. The result is a sleek, professional finish that enhances ramp presence while providing long-term protection from environmental exposure. The aircraft has been stored indoors for its entire life, contributing to its exceptional cosmetic and structural condition.
All control surfaces, fairings, and panels align properly, with no evidence of hangar rash, cracks, or fatigue. Landing gear components, wheel wells, and flap tracks are clean, lubricated, and corrosion-free. Every external lens and window is clear, and the LED lighting gives it a striking presence both day and night.
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Additional Equipment & Systems
Complete factory-installed full de-ice package (boots, heated props, heated windshield plate, pitot/static heat).
Cabin pressurization (5.5 PSI differential) allowing comfortable flight in the high teens and low twenties.
Factory-installed air conditioning, completely overhauled in 2024.
Built-in oxygen system with cockpit regulator and passenger outlets.
Full LED interior and exterior lighting conversion.
Wing lockers and nose baggage compartments clean and dry.
These systems make the 340A a true all-weather aircraft, capable of crossing the Rockies or the Midwest year-round with safety and comfort.
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Maintenance & History
Logs: Complete and consecutive since new
Damage History: No major damage history
Corrosion: None reported
Maintenance Status: Current inspections, consistent flight activity
Storage: Always hangared
Airworthiness: Maintained to FAA and manufacturer standards
All maintenance on this aircraft has been performed to the highest standard. The completeness of its logs provides full transparency, detailing each inspection, service, and upgrade since delivery. The engines, props, and systems are synchronized in hours and maintenance intervals, simplifying future upkeep.
Its history reflects careful ownership — flown weekly to maintain mechanical integrity and lubricate systems. This disciplined operation ensures smoother performance than aircraft that sit idle for long periods. The pressurization system, avionics, and flight instruments operate correctly, and the cabin environment remains tight and quiet.
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Remarks
This 1977 Cessna 340A RAM offers a rare combination of modern avionics, powerful performance, and pristine condition. With low-time RAM overhauled engines, matched Scimitar props, and a fully upgraded Garmin flight deck, it stands as a turnkey, no-compromise aircraft.
It has always been privately owned, hangared, and flown with care — a testament to its condition and dependability. Its complete logbooks, corrosion-free airframe, and absence of damage history make it a sound investment for any serious twin operator.
This aircraft is fully equipped for IFR and all-weather operations, providing turbine-like capability without turbine costs. Its pressurization, de-ice equipment, and efficient fuel management allow true cross-country comfort at 200+ knots.
Highlights:
Dual RAM overhauled engines (2022, 681 hrs)
Matched Scimitar props (heated, 681 hrs SNEW)
Garmin G500 TXi glass cockpit with GFC 600 autopilot
Full de-ice, pressurization, and oxygen systems
2023 paint and interior refresh
Always hangared, no corrosion
Complete logbooks since new
Flown weekly and ready for immediate service
Whether for private or business use, N40GB is a high-performance, pressurized twin ready to provide years of dependable service. Its blend of performance, capability, and refinement places it among the most desirable piston twins available today.
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Exclusive Listing Provided by Big Sky Aircraft
Acquisition Price: $429,000 USD
Contact: 701-367-8855