Harley Twin Cam engine problems

I believe that most of the issues with Harleys are the owners getting in above their heads and trying to do work they really shouldn't be doing and then blaming Harley or some aftermarket part maker for burning up their engine because they installed the product wrong And, what makes this runout situation worse? Harley-Davidson used to keep the crankshaft runout balanced to about 0.003″ but in the year 2011 to the current Twin-Cam engines the crankshafts leave the factory to allow as much as 0.012″ runout which is so huge you can't even install a gear drive kit

The cam chain tensioners is mostly a maintenance issue. The bearings well, Harley has this big theory that the ina bearings give better service. They don't, they had the same problem with evo's using the ina bearing. The torringtons are rated at a heavier load capacity than the ina bearings. It comes down to cost Includes all Twin Cam engines, from the Twin Ca... A frank discussion of the inherent flaws with the Harley Twin Cam engine, produced since 1999 to the present

It's not difficult to check. Will it be a problem if you don't take care of it? Yes. It's like any other machine, they need preventative maintenance. If you let it go then you're asking for bigger problems. A buddy of mine has an 2001 TC with no problems, mine is an '06 and my engine has been trouble free. Tensioner has minor wear on it Were there any problems with twin cam engines that I should be aware of? Someone told me the lifters suck and are foreign made. Was told they should be replaced. I have 30k on my ride and would rather be proactive than be broke down The 8 Most Common Harley-Davidson Problems & How to Handle Them 1. Cam Compartment Components. The cam tensioner, camshaft, cam bearings, and cam support plate are at risk for... 2. Cam Chain System. The cam chain system is a vital component in the functioning of a Harley's Twin-Cam engine..

Are there serious problems with twin-cam engines? Harley

• ated the need for it by taking a couple of cheap shots on the TC engine. I'll show you that in a few
• The early prototype Twin Cam engines had considerable trouble with the oiling system. These problems delayed release of the engine as scheduled for the 1997 model year. When the engines were run, oil came out any gasketed joint as well as the breather
• In addition to ownership problems, Harley has faced several recalls, including some as recent as 2017 and 2018. Also, their Twin Cam engine was defective from 1996 to 2003 and came with a chain tensioner problem. Although Harley has had its setbacks, it has still succeeded as a legend in the motorcycle world
• Harley Twin Cam, Cam Chain Tensioner issue. If playback doesn't begin shortly, try restarting your device. Videos you watch may be added to the TV's watch history and influence TV recommendations.
• e if there was ever catastrophic failure. Even if there was, it could have been thoroughly & correctly repaired. You can remove the cam cover to deter

Harley Davidson Twin Cam Chain Tensioner Problems 1999-200

1. The new design runs so cool, Harley's engineers were able to crank compression as high as 10.5:1; add that to an 8-valve engine with a 55mm throttle body flowing 50% more air than the Twin Cam, and they were able to crank a lot more power out of the new engine
2. While everyone experiences engine problems eventually, most would agree that they don't want this to happen while riding their Harley. The 2005 Softail Deluxe's twin-cam engine problem, is something you'll want to avoid, according to many reviewers on the web
3. One of the most central and most commonly overlooked issues with Harley Davidson bikes lies within their Twin Cam Engines, specifically, with the design aspect of the cam chain system. The plastic shoes rest on the cam chains and actually wear out over time. Talk about a design flaw
4. If the engine is under warranty, you may be lucky enough to get it replaced. However, the problem is waiting to zap you again, because a new engine usually includes the same weaknesses as the damaged engine. Oddly enough, not all Twin Cam cranks shift out of true and result in catastrophic engine damage. The problem is typically hit and miss
5. Newer Twin-Cam engines also have oil pump problems if ridden hard or the engine has been modified. The problem is not the oil pump's pressure side, but the suction evacuation side become overwhelmed and can not remove the oil fast enough from the crankcase

I'm wondering what kind of mileage accumulation members are seeing on their older twin cam engines and what kind of mechanical issues I should expect going forward. I have been inside the cam chest a couple of times for maintenance, including tensioner shoe replacement, servicing the oil pump, and cam bearing replacement, and I don't have a problem doing that Perhaps the biggest unforeseen problem with the brilliant new Twin Cam 88 was that it would not fit in the Softail bikes without a substantial redesign of the bike itself. The Softail frame was a tighter fit and did not provide room to rubber mount the motor like the Dyna and touring models do, which was considered a necessity due to the larger pistons and increased vibration The Twin Cam was designed to make factory assembly easier (and of course cheaper) at the cost of most of it being disposable rather than rebuildable. And then there is that heat issue. So if the only thing gained was power, the TC is a total fail. The EVO had plenty for what it went into One of the most revolutionary systems within Harley Davidson's 88 and. 88B twin cam engines is the dual coil system. This ensures that no. spark is wasted, and is another noticeable improvement over the previous. models of engine. In these, sparks fired unnecessarily and were wasted. occasionally ASK KEVIN: Why Does Harley Use a Cam Chain in the Twin Cam 103? By Kevin Cameron. August 20, 2015. More Ask Kevin. Ask Kevin. A Point About Two-Stroke Scavenging. Ask Kevin. How Motorcycles Carry.

Problems with all of harleys twin cam engines? - The eBay

• The Harley Davidson Twin Cam 96 is an air-cooled, push-rod operated, 45 degree engine with two cylinders in a V-twin configuration that first appeared on Dyna, Touring, and Softail motorcycles in 2007. This engine was the successor to the Harley Davidson Evolution engine and at present is used to power Dyna and touring models. The read mor
• Plus, it avoids the chain tensioner and other issues that plagued Harley's 1999-2006 Twin Cam engines, Haynes reports. But it's not just the engine that makes the Harley-Davidson Sportster an excellent used bike purchase, Motorcyclist reports
• Not to say Harley hasn't made design blunders in the past. Harley said thats about right for the twin cam engine. These motors run hot.I was told the same thing when I visited the Harley plant in York, PA. The Love Jug satisfied the hot engine problem but caused a scorching problem on to the right leg. Reply; Michael June 10th, 2016
• 2012 Harley-Davidson Twin Cam 103 V-Twin Engine Features and Benefits. WIN CAM 103™ ENGINE POWER . Live your ride to the power of 103. The air cooled Twin Cam 103 Harley Davidson® engine delivers more stump pulling torque, while its Electronic Sequential Port Fuel Injection jetting gives crisp, lively throttle reaction
• Harley also knew that a solid-mounted Twin Cam 88 engine would create too much vibration. The Factory's solution was the new Twin Cam 88B motor. The Twin Cam B-motor differs from an A-motor in that it has two counter-rotating balancers, one fore and aft of the flywheel assembly, that, together with the flywheels, negate nearly 100 percent of the engine's primary vibration
• The Harley-Davidson Twin Cam TC88 engine replaced the company's Evolution engine and, for the most part, improved on it. However, some riders found the TC88 to have a problem with its cam-support bearings. The problems occurred in only a small percentage of the bikes, and the company quickly identified and corrected the issue

HARLEY TWIN CAM ENGINE DESIGN PROBLEMS - YouTub

• The Harley-Davidson Twin-Cam V-twin was introduced in 1998. Here's a look at the technical elements and developments that allowed the 88-cu.-in. engine the increase power and reliability
• Two Harley owners from Los Angeles County allege that the Twin Cam 103 engine equipping their motorcycles emit high heat, which can burn riders, and shorten the life of the engine. A complaint was filed by attorneys Zimmerman Reed LLP and Boucher LLP on behalf of Michael Berke and Wolfgang Costelloon and all others similarly situated on December 2, 201
• If you have a Twin Cam engine manufactured before 2000 you may want to make sure you have the parts listed in the service bulletin below installed in your engine. There are documented problems where the cam bearing support plate and cam bearings fail. This is occurs on stock bikes and modified bikes. If the problem occurs, it can result in catastrophic failure of the cams, cam bearings, cam support plate, cam chain tensioners, blown oil pump and lifters
• Harley Tech Talk is a great forum, free too, but they don't mid a bit if you send a couple bucks in. Like others have said, do a test drive, then decide. IMO, the balanced engine feels more like riding an import, vibration wise. The rubber mount frames give you some thump when idling, but smooth out as the RPM increses. PoorU
• Harley-Davidson Twin Cam 103 V-Twin Engine for factory, Chilton & Haynes service repair manuals. Harley-Davidson Twin Cam 103 V-Twin Engine repair manual PD

Twin cam 88B engine problems V-Twin Foru

• Im a Harley Tech and have not seen this problem once so far in our dealership the expansion of the parts when at running temperature is considerable i can assure you that chain is to tight and will eventually damage parts in the drivetrain ie compensator / trans mainshaft bearings not to mention the very early wear of the tensioner shoe.. 7/8 cold and 3/8 hot is what it should have.. you should have moved it maybe one or 2 clicks at most so the chain just barley didnt hit the case.
• Jefe Smith's Harley-Davidson Twin-Cam Engine Rebuild. There have been a few complaints on YouMotorcycle about the rising prices of new Harley-Davidsons. There have also been comments from people hanging onto older Harley models because they like the old style more. To address these complaints and comments, there are many manufacturers of parts.
• The problem lies in the ability to allow the engine to breath better so its best to move away from all the stock exhaust and intake filter and cover. Also increasing the displacement is your best bet
• HARLEY TWIN CAM | animated-piston. Harley Davidson introduced the Twin Cam engine in 1998 as their successor to the Evo. The standard displacement was 88 cubic inches, approximately 1450 cc. They released a 95 inch upgrade kit a year later to increase the displacement to 1550cc
• Know your Harley Engines: Twin Cam, 1999 - 2016 The massively succ... essful Evo engine evolved into the Twin Cam 88 (for 88 cubic inches, or 1440cc) for the 1999 model year, named for the two chain-driven cams driving the valve system. Delivering more torque and power than the Evo, and with more powerful oil pump, the Twin Cam was available with either a 40mm carburettor or sequential-port.
• The Twin Cam 96Ci is a high-powered engine produced by Harley-Davidson Motorcycles. The engine was released in 2007 and, according to Harley-Davidson, the Twin Cam system provides cleaner burning and improved engine performance. The Twin Cam 96 engine replaced the Twin Cam 88, which was produced between 1999 and 2006. Engine Specifications. The Twin Cam 96Ci produces 1,584 cubic centimeters, or 96 cubic inches, of piston displacement
• Vad det gäller varvet så reglerar man detta gnm att byta utväxling 34 t framdrev ca 1500 + mont. Orig 3,15;1 3.06 eller 2,96: 1 funkar fint om man vill ha ner varvet. Softail EVO 94-99 har 3,15:1 utväxling och TC 88 99-06 har 3,15:1 (Original) Alltså vid 3000 rpm går båda hojarna ca 114 km/h orig stl bakdäck

As the engine rpm rises, the vibration becomes far less intrusive and the genius of Harley's mounting system comes into play, as the motorcycles are very smooth and comfortable at highway speeds These camshafts then align easily with other engine components with their two cam lobes. A chain, that is silent, drives the camshafts' operation. Although the lack of noise from the chain can be nice, this chain causes timing issues. To correct the problem, many Harley owners put in after-market camshaft drives See similar items $61.44 Buy It Now, $25.16 Shipping Estimate, Click to see shipping cost, eBay Money Back Guarantee. Seller: vintageruby30 (677) 100%, Location: Murphy, North Carolina, Ships to: US & many other countries, Item: 254893533108 Harley Davidson Twin Cam 88 Engine Model Testors? Complete on stand?

4 product ratings - Harley Davidson 99 - 06 Road King Softail Dyna Twin Cam 88 Engine Front Cylinder $15.00 Trending at $49.99 Trending price is based on prices over last 90 days The Harley V-Twin has it. That's not unique, lots of V-Twins have it, but it means that HD is not sitting at the back of the bus. The 2012 HD Big Twin 103ci engine produces 100-ft-lbs of torque. The 2012 Kawasaki Vulcan 1700 with the same size engine produces 108-ft-lbs My thoughts about engine rpm and how lugging your motor too often can eventually cause problems for your bike. Hopefully this will offer some insight into what can cause some motors to need a rebuild at 35K miles and other identical engines go 100K miles with few problems Cooling the cylinder heads with liquid has no effect on service interval: Harleys with equivalent Twin-Cooled and standard engines require service after the first 1,000 miles, and 5,000 miles thereafter. Incidentally, the new engines use the same coolant blend as the V-Rod, a 50/50 premix that uses long life coolant Feuling Vented Dipstick for Harley Twin Cam & M8 Touring Models. The Feuling Vented Dipstick can help motorcycles that experience what is called oil blow by. This is when oil is pushed out through the air intake. This problem is not only frustrating, it creates an oily mess and can even blow out oil onto the rider if the problem is severe

Any problems with 2011 twin cam engines? Harley Davidson

Today, Harley Davidson gives the rationale by stating that a liquid-cooled engine was the only possible evolution of its engine, making the following statement: If you started in 1909 with the very first Harley-Davidson V-Twin engine and worked your way up through every engine, every innovation, every improvement, every ride, every durability test in all those years and countless miles. New cam chain tensioners; Any other parts that are unserviceable will be replaced at extra cost. Engine Type. 1984 - 1999 Evolution Big Twin $4744.27; 1999 - 2006 Twin Cam 88 - 95 $4349.57; 2007 - 2017 Twin Cam 96 - 103 $4155.7 Så nu efter 18 år i tjänst får Twincam-motorn maka på sig, åtminstone i touring­modellerna, för att ersättas av en ny motor. 18 år är en lång tid, men det är inte den motor som Harley-Davidson haft i produktion längst. Den titeln går till Flathead-motorn, det vill säga sidventilaren på 750 kubikcentimeter The computer determines the engine temperature. If the engine is cold, then the fuel number is adjusted up by a pre-determined percentage. For example when the engine temperature is a 30 degrees F, the computer knows the engine is cold and needs more fuel, just like a choke on a carburetor According to Harley-Davidson, there's a 75 percent reduction in primary vibration at idle, so the motor will be dancing considerably less at stops. 7. Liquid cooling keeps the rider cooler. With.

The Harley-Davidson Engine Explained New Harley-Davidson engine designs arrive about every 15 years. Since 1936 engine designs released by Harley represented classic forms that the Big Twin has taken: Knucklehead, Panhead, Shovelhead, Evolution, Twin Cam, and the very large single-cam engines. A Harley engine is a two-cylinder piston engine 1999 - 2016 Twin Cam. The Twin Cam engine delivered more torque and power than the Evolution model and was originally available as a carburetor or with fuel injection. Problems with oil circulation in the Evolution engine prompted Harley-Davidson to equip the Twin Cam with a more powerful internal twin engine oil pump The heavy gauge steel construction and durable black powder coat make the Lowbrow Twin Cam A Motor Stand simple to use and stand up to use and abuse. Perfect for cradling your Twin Cam A motor whilst you work on your trusty steed. Twin Cam A motors are installed on a rubber mount in the frame, found on Dyna, Road King, and Electra. An easy way to spot an A motor is to look at the front motor.

One of the most endearing features of a Harley Davidson ® motorcycle is that throbbing V-Twin engine. They've been making them since 1909, and the 2008-2011 Harley Davidson Twin Cam 96 V-Twin and 2009-2015 Harley Davidson Twin Cam 103 V-Twin, are two of the most advanced potato guns to date The TC96B doesn't feel as strong or as willing to rev--Harley claims 90 pound-feet of torque at 2750 rpm--and it's not quite as smooth as the rubber-mounted 96 either I still like the Evolution engine for it's simplicity and longevity. My Twin Cams have Andrews gear drives in the chest, seem to work real well although they're noisier than stock chain drives. Rumor has it that this is the reason the factory didn't gear drive the twin cam. Not like they didn't have nearly 90 years of experience in gear drives.. The Axtell Twin cam iron liner for example is 280% thicker than the iron liner in the factory cylinder. A well designed all-aluminum cylinder will grow uniformly with minimal twisting and distortion, and will offer excellent heat dissipation and long life

Well Harley had a bad reputation for motors that had always broken.hence the wrench one dayride the next day..reputation so in 1981 the came out out with what was supposed to do the best motor Harley had ever made....breakthrough stuff like aluminum heads and block.this motor ran until 2000 and the birth of the twin cam engines.....your 1340 will last about 70,000 mile Forums > General Tech Harley Davidson > Engine, Fuel and Exhaust > adjusting valves twin cam 88. The twin cam has hydraulic lifters and the old sporty was solid lifters. Now my next problem is the top end seems to be running hot any ideas why? Fearless1, Oct 22,. Twin-Engine: The earlier twin-engines were called V-Twins, which were mainly produced for models prior to 1984. These engines are distinguished by their unique names such as Knucklehead, Panhead, and Shovelhead. Things changed with the introduction of Evolution in 1984, which was a solid 1,340cc engine. Subsequent upgrades were made by introducing Twin-Cam and Milwaukee-Eight Looking at the differences between the new Milwaukee 8 Engine from Harley Davidson with the old Twin Cam, you begin to see just where the improvements where HD focused in on. Lemmy at Revzilla broke down all the improvements on this here. I'm still road testing my new bike, so I'll need a few more miles to get a good opinion formed on it

The 8 Most Common Harley-Davidson Problems & How to Handle

• g Chain Guide Tensioner Compatible with 1999-2006 Harley Twin Cam Models. $8.99 $ 8. 99. FREE Shipping. Only 8 left in stock - order soon
• Twin Cam 88 Harley-Davidson Touring and Dyna models came powered by the new Twin Cam 88 engine in 1999. A counter-balanced Twin Cam 88B followed a year later for the solid-mount Softail models
• The Evolution engine (popularly known as Evo) is an air-cooled, 45-degree, V-twin engine manufactured from 1984 by Harley-Davidson for the company's motorcycles.It was made in the 1,340 cc (82 cu in) displacement for Harley-Davidson Big V-twins bikes, replacing the Shovelhead engine until 2000 when the last EVO was placed in a production factory custom FXR4 (FXR2 and FXR3 were the first CVOs)
• Le Harley-Davidson Twin Cam est une famille de moteurs de moto construits par Harley-Davidson depuis 1998. Bien que ces moteurs diffèrent de manière significative des moteurs Evolution dérivés de la série des moteurs simple arbre à cames et soupapes en tête de 1936, ils partagent un certain nombre de caractéristiques avec presque tous les moteurs précédents Harley-Davidson

Twin Cam advantages

Harley-Davidson's Twin Cam engines have been powering its Big Twins since 1999, so a replacement is due. So what do we know and what can we speculate? While we usually don't cite anonymous sources at Common Tread, I was told by a person who claims to know that H-D will debut a new engine their CVO models in the upcoming model year Leave other riders in the dust with the biggest, most powerful street-compliant crate performance engine Harley-Davidson has ever created. Built from the bottom up in Milwaukee, this street-tuned 131-cubic-inch Screamin' Eagle Crate Engine is designed to run with a wide open throttle at high engine speeds and provide instant passing power from cruising speed 103 Twin Cam Cylinder and Piston Kit Harley Twin Cam TC96 99-17 11-1752. $798.00. Add to Cart. 1550 Twin Cam 95CI Big Bore Cylinder Top End Gasket Harley Big Bore Kit. Regular Price: $129.95 Andrews 217554 554 Cam for Harley Milwaukee Eight Engines 17-20. Regular Price: $259.95 . Special Price $191.5 Orange Cycle Parts Oil Filter for Harley Milwaukee-Eight 2017-2018 and Twin Cam 1999-2017 Repl. #s 63798-99 and 63731-99A (Chrome) 4.4 out of 5 stars 2 $13.96 $ 13 . 9 It runs cooler, gets better fuel mileage and is easier to maintain. The Twin Cam runs super hot,and its cam chain tensioner is a nightmare to maintain. Its heads are underbuilt so people have to spend a lot of money to get better performance, especially from the original 88 engine. Crank runout is a major problem with the newer engines

Harley-Davidson Twin Cam engine - Wikipedi

Harley-Davidson has filed a patent for a new engine design that uses variable valve timing. Officially, the patent is not specifically for a VVT system but rather for a modular engine balancer that mounts on either side of a crankshaft 538 grind REAPER M-Eight Cam, Chain Drive Cam, 17-20 Part # 1351 $ 299.9 Fits 06 and later twin cam (except 08 later touring.) 4mm increase over 06 original equipment throttle body, high rate 4.9 injectors provide 25% more fuel to complement the increase airflow. Come fully assembled. (ECM calibration required) #27623-05A $365.4 The Twin Cam 103™ engine powers all 2012 Dyna®, Softail® and Touring models with the exception of the Dyna Street Bob® and Dyna Super Glide® Custom. This engine produces up to 100 ft lbs. peak torque, an increase of approximately 6 percent over the Twin Cam 96 engine it replaces as standard power for many of these models

Harley-Davidson unveils its eight-valve Big Twin in 107- and 114-inch variants. We look inside the all-new engine and ride the 2017 H-D touring motorcycles CARBURETOR FLEX MOUNTS, Problem - TC-301. Apparently the single most important lesson to learn about the MGA Twin Cam engine was not figured out by the factory until after this model had ceased production. The engine had been plagued by burned pistons, quite mysterious at the time You'll need some engine oil. The manual recommends no more than 3.3 Litres (3.5 Quarts) to fill the oil tank. I've found that around 2.5 Litres (2.65 Quarts) will fill the tank to the proper level on my '05 Softail. There is a myriad on engine oils out there on the market and choosing an oil for your Harley is a bit of a minefield As one of the youngest people to ever reach Harley-Davidson's Master Technician level, Marty Smestad of Capitol Speed Shop knows a thing or two about V-Twin work. He recently took parts from a 2007 Road King and 2015 Street Glide to build a customer a Harley-Davidson Twin Cam 107cid engine Twin Cam Harley Engine 143 2008 & Up; TWIN CAM HARLEY ENGINE 111/124 2007 & Up; Pumping air becomes a major problem for engines running at speed. This is why cylinder head porting is so critical to enhancing the performance of any engine. It is also why cylinder head porting by hand is so significant

TWIN CAM HARLEY REPLACEMENT ENGINE 143' : All joking about size aside, it does matter. The S&S 143 Long Block engine for 2008-later Harley Davison touring models is the largest S&S engine that will fit in a stock Harley Davidson chassis The Twin Cám 103 powertrain gives all Harley-Davidson Touring models assertive power for passing. On Touring modeIs, the Twin Cám 103 is equipped with an oil cooler. The air cooIed Twin Cam 103 Harley Davidson engine delivers more stump pulling torque, while its Electronic Sequential Port Fuel Injection jetting gives crisp, lively throttle reaction Forums > General Harley Davidson Talking > General Harley Davidson Topic > Twin Cam engine screensaver. Discussion in 'General Harley Davidson Topic' started by Andy Briggs, Nov 14, 2009. Page 1 of 2 1 2 Next > Andy Briggs New Member. 4 11 0. Just released on the animatedpiston site 2017 sees the launch of Harley-Davidson's new Milwaukee-Eight engine, so called due to its single-cam-actuated eight valves. Making 88.5bhp @ 5450rpm and 111lb-ft @ 32540rpm, the air/oil-cooled 107 (1745cc) motor currently powers the entire 2017 Touring Range of Harley-Davidsons. A 107 Twin.

14 Used Harleys Worth Every Penny (And 15 To Avoid At All

We offer three levels of CNC porting service for Twin Cam Heads: The Impact service treats your heads to our exclusive and proven 4-Axis CNC port treatment, followed by hand finishing, bronze manganese valve guides, a custom radius valve job, sizing of the chambers to achieve your desired compression ratio, and decking your heads to get a perfectly flat gasket surface The evolution engines are not counterbalanced and have a 4 3/8 stroke. They puke a lot when winding them up. I hate the breathing system in them. And they leak more than the Twin Cam. The cases are clamped in fixtures 13 times to machine them compared to 5 times for a Twin Cam

Harley Twin Cam, Cam Chain Tensioner issue

The engine Temperature range was from 230 - 250 degrees at the base of the V and the cylinder head temperature ranged from 320 Our test bike was ran with the Harley maintenance schedule of oil changes at every 5,000 miles. The Results. Twin Cam 1999-2006 primary chain replacement guide Fast Lane Head Work is the only specialist Harley Davidson head porting shop in the UK, and is dedicated to bringing you the very best in performance products and services for Harley Davidson Twin Cam, Evo & Sportster engines. My name's Alex and I've been around bikes for 39 years 19 of which have been spent riding and maintaining Harleys

Save 10% ($68.69) today when you shop RevZilla for your S&S Cycle Super E Carburetor Kit For Harley Twin Cam 1999-2005 ! Free Shipping, Lowest Price Guaranteed & Top of the Line Expert Service Twin cam Cable throttle 2001-2005: in most cases the stock injectors are large enough as they will support just over 115 Hp which cover bolt in cams and most big bore kits up to 100CI. If you have a larger displacement engine see the chart above Harley Twin Cam Parts The Evo is credited with turning the ship around for Harley. What came next, the Harley Twin Cam, is what shot the MOCO into another stratosphere. With the competition putting out engines with more power and were more durable, Harley needed to step up their game once again to keep up Harley-Davidson Twin Cam 88 and EVOLUTION engines. For Twin Cam 88 engine information, look for the TC88 label next to the horsepower number. Exhaust Systems Screamin' Eagle Slip Ons SuperTrapp 2-1 Cycle Shack 2-2 Slash Cuts ThunderHeader Hooker 2-1 Python II Generally, twin-cam 88 Harley Davidson engines feature higher horsepower, overhead valves powered by pushrods, as well as counterbalancing features that reduce engine vibration. Our selection of the best cam for the twin cam 88 Harley Davidson model comes with various unimaginable features that beat existing models