EVO Natural Cylinder Kit 3-5/8 91-7200S

( Brand: Evo ), ( Manufacturer Part Number: 91-7200 ), ( Engine Type: 4-stroke ), ( Type: S S ), ( Finish: Unfinished )

Review EVO 3-5/8 Bore Natural Cylinder Kit fits 1984–1999

Introducing the EVO 91-7200S Harley-Davidson Cylinder Kit, a premium upgrade solution for Harley-Davidson motorcycles model year 1984 to 1999. This cylinder kit is specifically designed for 3-5/8 inch bore Harley engines. engine cylinder kitockistas strong dose of performance, reliability, and style for your cherished Motorcycle.

The EVO 91-7200S Cylinder Kit comprises of eight units: four pistons, four cylinders, eight piston rings, eight rings grooves, eight gudgeon pins, and eight cylinder studs. All components are crafted from high-quality materials, ensuring a perfect fit, outstanding durability, and enhanced power output.

The piston design features a uniquely shaped, domed top ring groove. This feature improves compression, promoting improved combustion and increased power. The piston is engineered with a nitrided skirt that enhances strength, reducing the possibility of scuffing or damaging the cylinder wall. This results in reduced friction, smoother operation, and better overall engine performance.

Each cylinder is precision machined, staying true to the original OE dimensions and strength. The cylinder bore surfaces have a perfect finish and are laser-measured for maximum accuracy. They ensure proper sealing, eliminating leaks and collecting unwanted combustion gases, which directly translates to increased engine efficiency and a more responsive feel.

The piston rings included in the kit are designed using premium material to offer superior sealing and longevity. This kit features a sequential firing ring set that follows the piston's direction of motion, minimizing ring drag and enhancing combustion efficiency. This results in an increase in power and torque, engendering a more enjoyable riding experience.

The gudgeon pins provided are made from high-strength, heat-treated steel, ensuring they can withstand the extreme forces experienced by the piston and connecting rod. Their precision design and manufacturing process ensure a perfect fit and long lasting performance.

The cylinder studs are essential components of the kit that maintain the structural integrity of the engine. These high-quality studs are made from heat-treated steel, and their heads are threaded for easy attachment of the cylinder heads. They undergo a thoroughTorq-setting process during manufacturing, which ensures a correct clamping torque, maintaining the externally balanced assembly and preventing potential engine damage.

With the EVO 91-7200S Harley-Davidson Cylinder Kit, you will experience the satisfaction of performance-enhancing upgrades without compromising the reliability and overall quality that Harley is known for. This cylinder kit delivers an excellent power boost, improved combustion efficiency, and peace of mind. Upgrade your engine with confidence when you choose the EVO 91-7200S Harley-Davidson Cylinder Kit.

Pros and Cons of Buying a Harley-Davidson 91-7200s Cylinder Kit (1984-1999)

a. Increased horsepower and torque due to larger cylinders and improved combustion volume.

b. Enhances the overall riding experience with smoother power delivery.

a. Larger cylinders contribute to a more muscular and commanding appearance.

b. May attract attention and appeal to those who appreciate performance upgrades.

a. Designed specifically for 1984-1999 Harley-Davidson models, ensuring accuracy during installation.

b. You can be confident that this kit fits your motorcycle properly.

a. Evo cylinders undergo thorough testing in the manufacturing process.

b. High-quality materials contribute to a long-lasting upgrade that can reduce the need for frequent repairs.

a. By improving combustion efficiency, the engine can last longer, decreasing maintenance costs.

b. Properly installed and maintained, this kit can lead to more time on the road.

a. The 91-7200 Kit provides an opportunity to build a unique motorcycle with enhanced capabilities.

b. In many cases, these customized engines can exceed factory specifications.

a. A high-performance cylinder kit is a significant investment. In some cases, the price tag can be prohibitive for some buyers.

a. Installing a performance cylinder kit requires specialized tools, skills, and expertise.

b. Finding a professional who is proficient in bike Customization may be difficult, or a costly expense if hiring a dealership.

a. A larger engine requires more care to ensure consistent performance and prolonged lifespan.

b. More frequent oil changes and regular upkeep are essential for maintaining the 91-7200s kit.

a. A modified engine, especially one with larger cylinders, may produce more noise than a factory stock engine.

b. This might require addressing noise emissions to remain compliant with local regulations.

a. Despite rigorous testing, there is still a possibility that parts could fail prematurely, necessitating replacement and additional costs.

Installing a 91-7200s cylinder kit on your Harley-Davidson can significantly improve performance and visual appeal while providing a unique customization opportunity. Yet, the investment in time, skills, and money required for the installation process could be a potential drawback. Before making a decision, carefully consider your budget, technical abilities, and long-term commitment to maintaining the upgraded engine.

If you're an experienced rider with a solid foundation of mechanical knowledge and a significant budget, upgrading to the 91-7200s cylinder kit may offer the potential for increased power, customization, and user satisfaction. If, however, you are a novice rider or have limited technical expertise, this complex installation may be better handled by experienced professionals. In such cases, it is advisable to look for less intensive performance improvements or explore alternative cosmetic customization options.

Details:

This is a new open box pair ofs3-5/8 Bore natural finish Harley Davidson EVO cylinders that fit 1984 1998 BT 1999 Softail model's. They were ordered for a do it your self customer back in 2020 before he had ever even broken down his engine to find out that the bottom end rod bearings also bad, so has asked me sell them him. They have never been mounted or anything down to them at all. These retail for $815.95 but his lose is your gain.

Please do your homework on fitment size before you purchase. I took them out of the original box to take photos that you see.

part #: 917200 prices

• $231.95-$840.95

specifications cylindermotorcycleiz:

• for makes: Harley
• for years: 1984-1999
• brand: Evo
• mpn: 91-7200
• engine type: 4-stroke
• type: S S
• finish: Unfinished

general cylindermotorcycleiz:

• condition: New other see details
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads

payments cylindermotorcycleiz:

• wallet: Paypal
• other
• credit card: Mastercard

returns cylindermotorcycleiz:

• policy: No Returns

offer cylindermotorcycleiz:

• best offers: True
• sold: 0
• started: January 30, 2025
• availability: In Stock
• options: Ship-to-home
• quantity: 1

shipping cylindermotorcycleiz:

• carrier: USPS
• service: USPS Priority Mail
• class: Expedited
• cost: $28.00
• type: Fixed
• transit: 5-11 Days

seller cylindermotorcycleiz:

• city: Lilburn, Georgia
• rating: 100.0%
• # reviews: 1479

Evo 91-7200 Is Similar To:

• 03-551 Arlen Ness Harley Evo (26.1% similar) We mark or stamp every product and take pictures of the so dont try to return your damaged, non working item us. No shipping outside the lower 48 states exception part location rack...(October 18th, 2017)
• 106-4570 Cylinder Cycle Heads Black Evo (27.2% similar) Port design increases flow, while maintaining velocity. Available in silver powder coat or black powder coat finish. Intake manifold and gasket kits are sold separately. 585 inch springs. Please with any questions or concerns and we'll be happy to help. The highest shipping price will not be ...(December 30th, 2014)
• Harley-davidson 16837-85b Cylinder Studs 15-043 Evo (40% similar) Please do your research before purchase. Free shipping. Custom chrome part replacement cylinder studs, replaces oem 85B. New in original unopened package of eight...(February 3rd, 2015)
• Cylinder Sportster 16684-87 1100 Xl Engine Harley Heads 16682-87 Evo (15.2% similar) Pictures are part of. This is a used set of harley Evo sportswear heads front and rear...(January 27th, 2015)
• 1669185 1669685 Harley Davidson Evo Front Rear Cylinder Head Set Flt Flhtc (34.3% similar) All fitment is best guess, verify with your local dealer that this right fit for year and model bike. You can expect normal ware, that may have minor dings, dents, scuffs, scratches or even some rust. They're mostly used parts, vintage knucklehead, pinhead, shovel head, iron head sportswear, some ...(December 25th, 2018)
• 16692-92 Harley-davidson Harley Evo Front (32.4% similar) Low mileage engine. Complete with valves. Good used front cylinder head as removed from a 1992 DNA model. Fits many other years and model's with Evo engine...(November 21st, 2017)
• 16696-92 Harley-davidson Harley Evo Rear (32.7% similar) Fits many other years and model's with Evo engine. Good used rear cylinder head as removed from a 1992 DNA model. Low mileage engine. Complete with valves...(November 21st, 2017)
• 16720-81b Harley Davidson Evo Heads (32.3% similar) I would recommend a valve job. Harley Davidson Evo heads oem 81B 84C 1340 cc came off a stock motor with bad bearing. I do not doctor items up to hide flaws. I do my best to describe each item and offer as many photos see the condition...(May 31st, 2018)
• Heads Harley Engine 16721-84a 16720-84a Cylinder 1340 Dual Plug Twin Big Evo (37.1% similar) Pictures are part of. This is a used set of harley Evo 1340 bottom breather cylinder dual plug heads...(January 11th, 2015)
• Super Breather Black 99 Oem Set 16721-84d 16720-84c 92-99 Mile Harley Head Softail Evo (31.6% similar) Up for grabs is a super sweet set of genuine harley Davidson Evolution 1340 breather heads. Will receive a shipping quote at the close of this offer. I ship ups USPS. Noted as fitting 1992 thru 1999 harley Evo big twin engines. Item verify your fitment before buying. All others such as APO,s and...(February 1st, 2015)
• 16721-84 Harley Davidson Evo Front And Rear Cylinder Head With Valves (37.6% similar) Please study the photos what you see in is get. Feel free to ask away. Buyer pays for return shipping. Unless advertised. I always combine shipping if possible. Contact me for details. Serious watchers buyers only please...(December 7th, 2018)