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300HP Engine Upgrade for the Cessna 180 Skywagon. STC approved for all C-180 models. Cessna 180 300 HP 158 ktas Cruise Speed 1650 fpm Climb Rate 420 ft. Take-Off Distance 24,000 ft. Service Ceiling 1900 hrs TBO 9% Cruise Speed 51% Climb Rate -33% Take-Off Roll 22% Service Ceiling 26% TBO Performance Increase Fuel reservoir tank, accessories and installation hardware Fuel Pump McCauley three blade propeller and assembly or Hartzell Scimitar three blade propeller Polished spinner assembly Engine isolator mounts with bolts Manifold pressure/fuel flow gauge Throttle mixture cable assemblies Check valve All new fuel and oil lines and scat-hoses Baffle mod components New prop governor Placards Hardware, switches and clamp kit STC Authorization, Drawings, and Installation Instructions Optional: New Seaplane West engine mount Complete Kit We provide an all-encompassing kit during the upgrade. We like to call it a NEW firewall forward upgrade. Our goal is to provide all the hardware needed to complete the installation with ease. Fly above the terrain and get there faster Take advantage of true airspeed at altitude Climb to new heights and find the tailwind REQUEST QUOTE Adventures If you are the lucky owner of a Cessna 180 you know you are special. You have it all. A capable airplane that can play well in the dirt with other taildraggers and still take you to the big airports without holding the traffic behind you. With a 300 HP fuel injected IO-550 we promise that it will be even better. Powerplant Factory rebuilt, zero time Continental IO-550-D engine equipped with Bendix Mags, wiring harness, spark plugs, non-congealing oil cooler, fuel injection , high capacity oil pump with integral oil filter adapter. New logbook and factory warranty. Why fuel injection? Anytime an engine generates more than 260 HP we believe that fuel injection provides the needed even fuel distribution on each cylinder to make your flying worry free. You will achieve more predictable CHTs and EGTs and enjoy a smoother ride with reduced vibration. This minimizes premature component failure. Did we mention 0% carburetor ice issues? Powerplant IO-550-D IO-520-D Horsepower 300 HP 300 HP Max. RPM 2700 RPM 2850 RPM* Compres. Ratio 8.5:1 8.5:1 Fuel Consumption 75% Power 17-18 GPH 15-16 GPH We offer several products that will enhance your aircraft and add more pleasure to your flying. During an engine upgrade we are able to install other products and accessories efficiently since we start with a clean slate. Accessories Electronic Ignition Engine Monitor Aircraft Interior Engine Pre-Heater Avionics Upgrades Auxiliary Tanks Installation With Air Plains there are a few options to get 180 horsepower into your Skyhawk. We do not sell the "STC Paperwork" only. This is because we believe that the kit parts that we offer with the engine upgrade is the "secret sauce" to a complete, safe and successful installation. We have added several more parts over the 40 years with our continual engineering. Our goal is to make the installer's job as easy as possible. Installation instructions and blueprints safeguard the procedures and standards for installation and maintenance of your new engine... no matter where you choose to have it installed. Did you know that in the state of Kansas there is no sales tax on aircraft maintenance or modification? REQUEST QUOTE Option 1 Install at Air Plains Purchase Complete Kit Engine Provided Installed at our Facilities One flat fee Use our Know-How 2 to 3 weeks Turn Time Option 2 Install at your FBO Purchase Complete Kit Installed by your mechanic Complete Hardware Instructions and Drawings Tech Support provided Customer Focus Besides customer satisfaction, one of our main goals is to provide continual airworthiness for your aircraft. We are never done adding more features to the upgrade kit. This is why we fabricate our FAA-PMA parts in-house. We are able to reduce cost significantly to save you more money and provide a product that meets our kit quality standards. We are here to provide future support in your maintenance. Visit our online store to find STC products and FAA-PMA parts. BUY PARTS $314 $940 OEM Vs. Air Plains $1,295 $11,935 $976 $324 $372 $264 REQUEST QUOTE On Water If you seek more adventures in the water we provide a few options to prepare your aircraft for floats or anphibs. Additional power will enable you to explore other uncharted territories and launch your airplane off the water much faster. Propeller All propellers have been matched to provide the best combination of airframe and powerplant thru flight test and vibration analysis. We offer several propeller STCs to make each aircraft unique. Model: McCauley Blackmac D3A34C401 /90DFA Engines: IO-520 IO-550 Diameter: 80-88 Model: Hartzell Trailblazer PHC-L3Y1F-1N /NG8301-5 Engine: - IO-550 Diameter: 80 PROPELLER STCs

Cessna 182 H thru R models are approved 300HP. Replace the original O-470 and step up to fuel injection and better performance with Air Plains. Cessna 182 300 HP 156 Ktas Cruise Speed 1750 fpm Climb Rate 450 ft. Take-Off Distance 24,000 ft. Service Ceiling 1900 hrs TBO 3100 lbs Gross Weight P and Q Models Fly at 20 In. Hg. and set a comfortable cruise 2400 RPM 155 KTAS Develop more power at altitude 14.6 GPH Rich of peak operation at 10,500 feet 20 In. Hg. Manifold Pressure Propeller Speed 2400 RPM True Airspeed 155 KTAS 14.6 GPH Fuel Consumption Need for Speed With additional power you will take advantage of better flying conditions at higher altitudes. True airspeed is your new friend. REQUEST QUOTE 9% Cruise Speed 51% Climb Rate -33% Take-Off Roll 27% Service Ceiling 26% TBO Performance Increase Powerplant IO-550-D IO-520-D Horsepower 300 HP 285 HP Max. RPM 2700 RPM 2850 RPM* Compres. Ratio 8.5:1 8.5:1 Fuel Consumption 75% Power 17-18 GPH 15-16 GPH Powerplant Factory rebuilt, zero time Continental IO-550-D engine equipped with Bendix Mags, wiring harness, spark plugs, non-congealing oil cooler, fuel injection , high capacity oil pump with integral oil filter adapter. New logbook and factory warranty. Why fuel injection? Anytime an engine generates more than 260 HP we believe that fuel injection provides the needed even fuel distribution on each cylinder to make your flying worry free. You will achieve more predictable CHTs and EGTs and enjoy a smoother ride with reduced vibration. This minimizes premature component failure. Did we mention 0% carburetor ice issues? Fuel reservoir tank, accessories and installation hardware Fuel Pump Two or Three Blade Propeller Polished spinner assembly Engine isolator mounts with bolts Manifold pressure/fuel flow gauge(if no primary EDM) Throttle mixture cable assemblies Check valve All new fuel and oil lines and scat-hoses Baffle mod components New prop governor Placards Hardware, switches and clamp kit STC Authorization, Drawings, and Installation Instructions Optional: New Seaplanes West engine mount Complete Kit We provide an all-encompassing kit during the upgrade. We like to call it a NEW firewall forward upgrade. Our goal is to provide all the hardware needed to complete the installation with ease. Muscular Climb Give your VSI a real workout with an aircraft that climbs with the determination of a homesick angel. Whether you're an experienced backcountry pilot seeking a new level of capability navigating thru the terrain or someone eager to embark in a new adventure, you can now fly with greater confidence. REQUEST QUOTE Gross Weight Trolltune Corporation offers STC SA03608AT which allows Cessna 182 models P and Q to increase useful load 150 to 160 pounds in most cases. If you want to get there faster you can carry an additional 25 gallons of fuel by taking advante of auxiliary fuel tanks Pack your extra bag for the trip and stay within the envelope of the weight and balance. Propeller All propellers have been matched to provide the best combination of airframe and powerplant thru flight test and vibration analysis. We offer several propeller STCs to make each aircraft unique. Model: Hartzell PHC-L3YF-1RF /F7691 Engines: IO-520 IO-550 Diameter: 77-78 Model: McCauley D3A34C401 /90DFA Engines: IO-520 IO-550 Diameter: 80-82 Model: Hartzell PHC-L3Y1F-1N /NG8301-5 Engine: - IO-550 Diameter: 80 PROPELLER STCs Installation With Air Plains there are a few options to get 180 horsepower into your Skyhawk. We do not sell the "STC Paperwork" only. This is because we believe that the kit parts that we offer with the engine upgrade is the "secret sauce" to a complete, safe and successful installation. We have added several more parts over the 40 years with our continual engineering. Our goal is to make the installer's job as easy as possible. Installation instructions and blueprints safeguard the procedures and standards for installation and maintenance of your new engine... no matter where you choose to have it installed. Did you know that in the state of Kansas there is no sales tax on aircraft maintenance or modification? REQUEST QUOTE Option 1 Install at Air Plains Purchase Complete STC Kit Engine provided Installed at our facilities One flat fee Use our Know-How 3 to 4 weeks turn time Option 2 Install at your FBO Purchase Complete Kit Installed by your mechanic Complete Hardware Instructions and Drawings Tech Support provided Customer Focus Besides customer satisfaction, one of our main goals is to provide continual airworthiness for your aircraft. We are never done adding more features to the upgrade kit. This is why we fabricate our FAA-PMA parts in-house. We are able to reduce cost significantly to save you more money and provide a product that meets our kit quality standards. We are here to provide future support in your maintenance. Visit our online store to find STC products and FAA-PMA parts. BUY PARTS $314 $940 OEM Vs. Air Plains $1,295 $11,935 $976 $324 $372 $264 Fly above the terrain and get there faster Take advantage of true airspeed at altitude Climb to new heights and find the tailwind REQUEST QUOTE Mr. Popular Like a swiss army pocket knife, many consider the Cessna 182 the best all-around general aviation airplane. That is why we offer several upgrades to make you even more unique. With 300 HP you will fly the best go-anywhere and do-anything aircraft ever made. Achieve better true airspeed, fly higher above the terrain and get to cruise altitude faster with Air Plains power. Go the Distance Stretch your reach in every direction, and give your aircraft the power it needs to fly faster and farther than it ever has before. If you desire running Lean of Peak (LOP) our fuel injected engine paired with an engine monitor is the prefect combination to stretch your range. EGT WELLINGTON, KS SUNDAY 03-APR-2022 07:54AM CDT LAL LAKELAND, FL SUNDAY 03-APR-2022 03:07PM EDT 6h 13m total travel time REQUEST QUOTE Fly non-stop to arrive on time at the destination 6:13 min 1,119 mi Cover some ground really fast in cooler air 186 mph Find the tailwind and enjoy the journey even more We offer several products that will enhance your aircraft and add more pleasure to your flying. During an engine upgrade we are able to install other products and accessories efficiently since we start with a clean slate. Accessories Electronic Ignition Engine Monitor Aircraft Interior Engine Pre-Heater Avionics Upgrades Auxiliary Tanks

Frequently asked questions page contains questions frequently asked by customers and answers within. Frequently asked questions Section One Is my cowl modified on my 172 for the 180HP engine upgrade? It depends on the model of 172: 172 B, C, D, E, F, G, H: Oil door is relocated to the right side of top cowl, and the dual exhaust holes are filled and replaced with a hole for the single exhaust. 172 I, K, L, M, P: No Cowling modification required. 172 N: Oil door is relocated to the right side of the top cowl, no modification necessary on bottom cowl. 172 R: No cowl modification required. What accessories and/or hardware do I keep from my existing engine to reuse on my new installation? It depends what engine is being replaced and for that reason it is best for the installing mechanic to keep the cores until the installation is complete. Where can I find performance data for my 172-180HP? We have prepared performance data to be used as reference only. This data is to be used for reference purposes only and reflects performance for aircraft at 2550 Lbs. Download it here. Why are the flaps restricted to 35 degrees for the 182-300HP engine upgrade? Cessna 182, when equipped with Air Plains 300HP, has a flap limitation of 35 degrees to allow enough rudder authority when in a full power stall. The extra power of our upgrade enables your aicraft to stall at a greater angle of attack. Where can I find the most recently updated Flight Manual Supplement? Right here on our website! Here is a direct link: https://www.airplains.com/file-share Why is my Cessna 188 not getting full redline with the prop STC for the Blackmac? Is your tachometer accurate? Check propeller blade angle per the STC SA00409WI. Propeller governor for the 88 inch propeller must be adjusted correctly. Typically maximum RPM will be achieved at 40-50 MPH. Why are the flaps restricted to 30 degrees on my 172-180HP engine upgrade? The flaps are not restricted because of the 180HP engine upgrade. To clarify, there are two STCs: 1. STC SA4428SW is the engine upgrade approved for 172B-P and R models and 2. STC SA2196CE is the gross weight increase approved for 172D thru P and R models. The flaps are restricted when STC SA2196CE is applied. During a go around with full (40 degrees) flaps, the aircraft must be able to achieve a minimum rate of climb at gross weight. At 2500 to 2550 lbs of gross weight the aircraft will not be able to achieve the required rate of climb with full flaps. Note: 172P flaps came from the factory with 30 degree flaps. Why is there an option to add an airbox for the 172R Upgrade to 180HP? For the installation using STC SA4428SW, the engine air induction system receives ram air through an intake on the lower front portion of the engine cowling. The intake is covered by an airfilter which removes dust and other foreign matter from the induction air. Airflow passing through the air control unit which is under the engine, and then is ducted to the engine cylinders through intake manifold tubes. In the event induction ice is encountered, or the intake air filter becomes blocked, an alternate heated air can be obtained from a shroud around an exhaust riser through a duct to a valve, in the air box, operated by the alternator air control located on the instrument panel. Unfiltered heated air is drawn from the lower cowl area around an exhaust riser through the shroud into a duct on the air box. Use of full alternate air will result in a loss of approximately 75 to 150 RPM. Read more on our technical support section. What are the tire pressures on my 172-180HP Skyhawk? To operate at the higher gross weight, the aircraft must be equipped with minimum of 6 ply tires on both the main wheels and nose wheels on all models. Tire pressure should be: NOSE GEAR.....................45 PSI MAIN GEAR.......................38 PSI Why are some performance charts not available? According to the CFR 21.5 any airplane less than 6000 lbs delivered before March 1979 was not required to have an Aircraft Flight Manual. After that, it was. Therefore, if an airplane did not have an AFM, an STC applicant would provide a Supplemental AFM. If an airplane did have an AFM, the STC applicant would provide an AFM Supplement. Because of the certification basis (CAR 3), takeoff and landing performance was not required to be provided for those aircraft. Thus, a SAFM was not required to have that performance. Unless otherwise addressed in the Flight Manual Supplement the performance numbers covered in the FAA approved Flight Manual are considered to be equal to or better than the listed numbers and they can be used for performance calculations. What spark plugs are on my Lycoming O-360-A4M? Champion spark plugs come stock on all Air Plains 180HP engine upgrades. Part number 1182-E7. Contact Air Plains for current price and availability. Can the Power Flow Exhaust System be used with the 172-180HP STC Kit? As with any STC it is up to the installing mechanic to determine the compatibility of combining STCs. If you already have Power Flow exhaust on your stock 172 it can be re-used with the new engine with the replacement of a few parts from Power Flow Exhaust Systems to accommodate the O-360 engine. Air Plains is a preferred Power Flow Systems Dealer. 149NL Starter is going to be used on 24v aircraft, what is to be done with the jumper? Many, not all, but many of Air Plains engine upgrades come with a new starter. The Skytec starter used is the NL model. Refer to Hartzell Engine Technologies Drawing ST25001, latest rev for instructions. Clickable link here. Why are there two options for the 172R upgrade? There are two options for the 172R upgrade, but both offer the same performance. Two STCs SA4428SW(Air Plains STC) and SA10406SC(owned by Air Plains since 2018 formerly owned by Alamo Aerospace). The main differences between the two is SA4428SW was approved and uses a new heated induction airbox duct and control cable compared to SA10406SC does not use an alternate airbox installation. See our technical support page for further description and comparison of the two. If I purchase an engine through Air Plains is there a core charge? There is a core exchange that takes place, yes. Air Plains must receive an engine core in exchange for the purchase of a new. The core exchange program is different depending on which aircraft and engine combination. Contact Air Plains for questions specific to your aircraft. Where can I find required placards? Required placards can be found in the Flight Manual Supplement. Supplements to the original POH can be downloaded directly from our website. What is the TBO on my Lycoming Engine? It depends which model you have and what the serial number is. For the O-360-A4M it could be 2,000, 2,200 or 2,400 depending on the usage. Be sure check Lycoming's most recent Service Instruction 1009, click here for direct link for your specific application. Is there a troubleshooting guide for my Lycoming O-360? Lycoming published a Reciprocating Engine Trouble Shooting Guide. The file can be downloaded here. Does Air Plains Services have to do the engine upgrade install or can my local A&P do the job? Air Plains does not have to do the engine upgrade installation at our facility. Visit with your local shop or have them contact us directly at sales@airplains.com At this time the R182-300HP installation can only be installed at our location. Please contact us for additional information. Can I get Flint Aero Tanks with my engine upgrade? Yes, and it can be done simultaneously to minimize down time. Call Air Plains for current pricing and lead times. What fuel can I use? The question of which fuels are approved for our popular Lycoming 180hp and 300hp engines is one of our most asked. The answer: It’s complicated. Keeping up with advances in engine and fuel technology can be daunting so we thought it would be handy to republish the updated Lycoming Service Instruction No. 1070 AB that includes an easy-to-read chart matching engine model numbers to approved fuels. What is the TBO on my Continental engine? In 2012, Continental Motors introduced its Gold Standard Factory Rebuilt and New Engines. These engines incorporate improvements in technology and manufacturing processes that have allowed Continental to increase the TBO. The increased TBO is affective on nearly all Continental Motors Factory produced engines beginning in February 2012 as designated by serial number 1006000 and higher. Nearly all models will receive the benefit of a 200 hour increase over the existing TBO. Aircraft owners that fly 40 hour per month will receive up to 400 hours. Contact Continental direct for further inquiries. What oil filter is used for the 172-180HP engine upgrade? The O-360 uses Champion CH48110-1 or Tempest AA48110-2 oil filters. Does my Lycoming Electronic Ignition System need the power conditioner? On 4 cylinder models as long as the EIS data sticker indicates the unit being Rev M or N there is no need for a power conditioner. SureFly states, "The SureFly PC17V Power Conditioner is used to eliminate noise spikes from the airframe input power that may, in some aircraft with a 28V charging system, be large enough to trip a SIM’s internal overvoltage protection causing a system reset. Resets of this nature may appear as engine “stumbles” or “rough running”. The PC17V Power Conditioner is installed in series between the SIM battery fuse and the SIM power terminal." For latest information check Surefly's website for latest revision of SF2001 Installation Instructions and Service Instruction SI-920: https://www.surefly.aero/

The instructions below will cover the proper way to install our airbox and support bracket in your Air Plains 172-180HP engine upgrade. 1. Apply silicone seal Apply a very thin bead of silicone to the airbox surface where it will make contact to the adaptor plate. 2. Attach airbox Use provided bolt for the left rear attachment. Do no tighten all the air box fasteners. They should be loose until all components are together. 3. Fasten the machine screws. Do not tighten! 4. Alternator bracket Attach Alternator bracket to the engine. Forward bolt will be used to attach the support bracket to the airbox. 5. Support Bracket Slide support bracket thru cover plate. Note that cover plate must be on forward side of the baffles. 6. Support bracket attachment. Slide support bracket thru cover plate. Note that cover plate must be on forward side of the baffles. 7. Install cover plate Use PK Screws and tinnermans to install the cover plate. 8. Final installation and fitment Once all the hardware is assembled tighten all the fasteners to ensure that the air box is installed without any binding or jamming. If your support bracket is too short it may need an aluminum filler plate between the bracket and the airbox. If the bracket is too long make sure you are using the correct attachment holes in the air box. Our bracket is identical to the factory size and although it should work with minimal modification it may require you to rework the bracket.

Air Plains Services , a world leader in general aviation engine and avionics upgrades, announced today it has gained Parts Manufacturing Approval (PMA) from the Federal Aviation Administration for its forward spinner bulkhead  for a number of Cessna 172 models. This component joins the Air Plains parts catalog that includes the Cessna 172 aft spinner bulkhead PMA component and the forward and aft bulkhead assemblies designed specifically for any Cessna 172 with the Air Plains 180hp engine upgrade STC. “We’re always looking to expand our PMA range of parts for Cessna pistons, focusing on high quality and low market cost,” said Katie Church, Air Plains president. “We’ve already gained design and production expertise for this part through the STC process, so expanding the PMA product line to include legacy aircraft models was a logical extension.” The forward PMA spinner bulkhead (Part #APS0550321-4) is approved for Cessna 172 I through P models and for French-made 172 L through P models. Air Plains produces hundreds of PMA and STC parts for a wide variety of Cessna single-engine piston such as components for the air induction system including airboxes, collars, gaskets, adjustable brackets and baffles assemblies, all available at the company’s online store . For information about the new spinner bulkhead or any Air Plains product, call 1-800-752-8481 or +1-620-326-8904 or send an email to sales@airplains.com .

WELLINGTON, KS (July 31, 2025) – Air Plains Services , a world leader in general aviation engine and avionics upgrades, announced today it has gained Parts Manufacturing Approval from the Federal Aviation Administration for the airbox filter seal assembly  for Cessna 172 L and M model aircraft. “The seal assembly is an important part of the cooling system and plays a key role in proper CHT management,” said Katie Church, president of Air Plains. “We specialize in PMA parts for Cessna piston, particularly the cooling system, and when we find ways to improve on an original design, we want to add it our product range.” Mechanics at Air Plains report the absence of the filter seal assembly on many L and M model Cessna 172 Skyhawks coming in for engine upgrades. This can cause a change in designed air flow over the engine, resulting in higher CHTs, as much as 10 to 15 degrees F. “The seal is essential to achieve a greater pressure differential in the engine compartment that strengthens the flow of cooler air over the engine,” Church said. “As we’ve done with other components such as the airbox, we’ve made it better, easy to install and less expensive than other options.” Air Plains opted for a special, lightweight polycarbonate plastic due to its higher temperature resistance, weight and strength. The fiberglass-reinforced silicone material is a single piece seal that provides the best differential pressure between the upper and lower cowl and is designed for easy installation. Air Plains offers a wide range of PMA parts for the induction system including airboxes, collars, gaskets, adjustable brackets and baffles assemblies, all available at the company’s online store . For information about the new airbox filter seal assembly or any Air Plains product, call 1-800-752-8481 or +1-620-326-8904 or send an email to sales@airplains.com . ### Air Plains Services, based in Wellington, Kansas, is a leader in general aviation aircraft upgrades, specializing in high performance engine upgrades  for most Cessna 172, 180 and 182/182RG piston aircraft, avionics systems  and components as well as custom avionics panels, high quality spare parts  and enhanced performance systems, and aircraft modification and maintenance . Air Plains stands apart from most other companies, shipping complete, ready-to-install engine upgrade kits anywhere in the world. Air Plains Services, serving the aerospace industry for more than 40 years, is also the home of the Inpulse ADI modification that allows high compression aircraft engines to use 91 octane auto fuel. Air Plains also owns Petersen Aviation  of Minden, Nebraska, known worldwide for its wide inventory of Supplemental Type Certificates (STCs) that allow general aviation aircraft owners to use less expensive, unleaded auto fuel instead of 100LL avgas.  For more information, visit the Air Plains website at www.airplains.com  and follow the company on the Air Plains Facebook  and Instagram  pages. For information on Air Plains’ Inpulse system for unleaded auto fuel, visit www.flyinpulse.com .