An "interference" engine is an engine which the failure of the timing chain would cause damage to either the pistons or the valves, due to. 1.8L Gasoline Non-Interference The 4.0 OHV was also used in some Mazda trucks and SUVs. 1.6L SOHC (Prizm) Non-Interference The cookie is used to store the user consent for the cookies in the category "Other. This means that more air and fuel can be compressed into the cylinders, resulting in a more powerful explosion when combusted. Interference engines are four-stroke vehicle engines with fully open valves, such that the valves move towards any area that the piston travels. 2.5L DOHC Interference That saves a lot of time because you dont have to refer back to the component locator or circuit locations. The 302 block has slightly longer cylinder skirts to accommodate the 302's .013-inch longer stroke. An interference engine is one that has insufficient clearance between the valves. 1.6L 8 Valve Engine Non-Interference Thus, this way, they will be able to check if there are damages inside the cylinders. From 1983 to 1985, the 302 didnt change all that much. B234 (F, G) Intereference Just broken in good. The 4.0 engine was used in a variety of vehicles, including the Ford Explorer, Ranger, and Mustang. The Kei class was developed to promote small cars in response to oil shortages after World War II. Is the Ford 4.6 L an interference engine? Roush is a registered trademark of Roush Enterprises Inc. Eaton is a trademark of the Eaton Corporation. However, the Zetec ACTS as a freewheeling engine, given that Ford put recessed pistons in the engine to give the valves clearance to be fully extended and the crank can turn without the cams without damage to the pistons or valves. Posted by McNally on March 4, 2022. Posted on Aug 30, 2015 Not Helpful Comment Flag Testimonial: "Thanks, sounds like I better make time to do it myself." Ad Add Your Answer Video American 2V 351Clevelands came equipped with two barrelled carbs and as such the engine was designed to be the common version of the engine fitted to non performance cars. 2.0L DOHC (Probe) Interference 2.0L Diesel Interference 2.0L SOHC Gasoline (Escort, Focus & Tracer) Non-Interference 2.0L SOHC Gasoline (Capri, Pinto & Ranger) Non-Interference 2.2L Interference 2.3L Diesel Interference 2.3L SOHC Gasoline Non-Interference 2.4L Diesel Interference 2.5L SOHC 4 Cyl. 1.3L Interference Privacy Statement - Are there any Honda engines that are non interference? 3.0L 944 Interference At the same time, the valves will need to have a wider opening to improve airflow. The 4-barrel carb came with a redesigned automatic choke and was rated at 165 horsepower, which was 10 less than the manual. Does a Ford Fusion have an interference engine? Ford introduced the 5.0L V8 as an option for the Explorer in 1996. At first glance, the most noticeable change was the upper and lower intake manifolds. At this point I am going to pull the front apart, and replace the timing chain. The Ford 4.0 OHV is a V6 engine that was produced by the Ford Motor Company from 1986 to 2008. This product can expose you to chemicals including chromium (hexavalent compounts), which are known to the state of California to cause cancer and birth defects or other reproductive harm. Free shipping for many products! This increases the lifespan of the engine and also makes it more efficient. 3.4L Non-Interference 3.2L Interference But it did have some issues for a number of drivers. 3.0L Inline 6 VVT-i (1998 2JZ-GE) Interference V8 engine 3.0L SOHC 12 Valve Engine Non-Interference 1.8L 4 Cyl. Ford Escort. Interference Engines - Complete List The following list will provide you the information on whether your car engine is an interference engine or a non-interference engine. Jun 15, 2012. If youre considering a vehicle with a 4.0 engine, its important to know the difference between the SOHC and DOHC versions. The 4.6 engine was extremely impressive Innovation when it was created in the early 1990s. Welcome to the forum.the Ford 302 in a truck app. To put it in simple words, in a non-interference engine the piston is situated at the top dead center so that it can never go higher than a fully open valve. One of the reasons why the 4.0 SOHC engine is so popular is because it offers a great balance between power and economy. 1.6L DOHC (1989-92 Prizm GSI) Non-Interference it had 220k before it blew but now im selling parts of which is still good which is quite a bit of them. I have a 302 ('86 block, 28oz imbalance) with '65 289 heads (round pushrod. And for one final tidbit of random information, there were roughly 10,000 of these engines shipped to Ford of Australia to be used in its Falcon line. Ford Escape Abs Sensor Problems Cause & Fix, Can You Change Rod Bearings With Engine In Car, Ford Econoline Door Lock Problems (Full Guide), Ford E250 Transmission Problems (You Need To Know), How to Improve Engine Sound With A Camshaft Lobe Lift. A Ford interference engine is an engine where one or more of the valves protrude into an area through which the piston may travel meaning that if something goes wrong with the timing belt or chain, serious engine damage could occur as a result of a collision between valve and piston. When the engine is running, the valves open and close to allow air and fuel into the cylinder and exhaust out. It was a 4.2-liter or 255 cubic inch variant of the 302 which had a smaller bore of 3.68 inches. What characteristics allow plants to survive in the desert? Just clear tips and lifehacks for every day. Moreover, its valves are completely open and extend into areas through which the piston can travel. The Ford 4.0 engine is a V6 engine that was first introduced in the 2006 model year. 2.3L Non-Interference a rocker arm is too loose, except perhaps a bit of a deeper tone. Registered. 1.6L SOHC Interference When the piston is at the top dead center (TDC), both intake and exhaust valves are closed. On the left is a 1970 vintage 302 harmonic dampener with a 28-ounce offset balance. If your 4.0 SOHC engine is making noise, it could be an indication that the timing chain needs to be replaced. Overall, the Ford 4.0 V6 is an excellent choice for a car or truck engine. R. 1.8L DOHC (Storm) Interference, All Honda engines are interference except 3.0L & 3.2 which are Non-interference, 1.5L Interference Find many great new & used options and get the best deals for 289 302 Engine Rebuild Kit w/ Flat Top Pistons FITS 1964-1983 Ford 5.0L 4.7L V8 at the best online prices at eBay! Yes your vehicle is an interference engine, therefore if the timing belt breaks then engine damage will result. 1.6L DOHC Interference (B2300) Non-Interference The pistons also move up and down, but they dont actually touch the valves. The distinctive fifteen-inch air cleaner assembly was derived from the 351 Ford LTD H.O. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. But opting out of some of these cookies may affect your browsing experience. It was equipped with a standard two-barrel carburetor and was rated at 145 horsepower at 4400 RPMs and 216 lb-ft of torque at 2200 RPMs. 1.8L Diesel Interference Please consider this a guide only. Answer (1 of 2): That depends on the manufacturer (there are several that make 3.5L engines). I'm looking to do a full rebuild/engine build with mostly new parts. 3.0L SOHC Interference 3.0L SOHC Interference, Villager 3.0 Non-Intereference The following list will provide you the information on whether your car engine is an interference engine or a non-interference engine. CAFE stands for Corporate Average Fuel Economy. B204 (E, F, GT, FT) Interference 3.5L DOHC Interference, 2.5L Non-Interference 4.0 timing chains get sloppy, being off enough to make noise and driveablity concerns is different than the utter chaos that ensues when a timing belt breaks in an interference engine. Is a 302 Ford an interference engine? Non-Interference 2.5L V6 Non-Interference 3.0L SOHC Interference 3.0L & 3.2L SHO Non-Interference 3.3L Interference, 1.3L Non-Interference 1.6L DOHC Non-Interference 1.6L SOHC Interference 1.8L Non-Interference 1.9L Non-Interference 2.0L DOHC (Contour, Escape, Focus, Mystique, ZX2 & 1999-2002 Cougar) Non-, Get the BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manualsperiod. (Image/Jim Smart) Be careful not to damage the gasket surfaces when doing this. Check with an engine shop, they should be able to tell you when Ford finally woke up and made the improvement. Alldatadiy.com offers redrawn diagrams as well as factory diagrams. 1985 was the last year of the carbureted 302 in the Mustang. These cookies track visitors across websites and collect information to provide customized ads. You can do it by improving the compression ratio and allowing the valves to improve airflow. From 1979 to 1995, the Mustang 302 was a liquid-cooled, overhead-valve, 90-degree V-8 engine. 2 Is my motor interference or non interference? Owners of Ford vehicles equipped with interference engines and timing belts rather than timing chains should follow the automakers recommendations for changing timing belts. The 5.0L became available in the AWD Ford Explorer in 1997. For 1997, revised cylinder heads increased output of the 5.0L V8 to 215 hp. FK Non-Interference engine By clicking Accept All, you consent to the use of ALL the cookies. 3 Is the 4.0 L SOHC an interference motor? My #8 intake valve makes a ticking/tapping noise. If you see an oil leak, its best to get it fixed as soon as possible to avoid any further damage to your engine. If the timing belt or chain breaks, the valves can hit the pistons and cause severe damage. The cookie is used to store the user consent for the cookies in the category "Analytics". Manage Preferences - 1.6L SOHC 16 Valve Engine (Tracker) Interference Posted 5 months ago in San Antonio, TX. 2.0L 8 valve Non-Interference (However therehave been instances of bent valves) 1.8L 124 Series Interference Eliseo Carrillo (7) offer up reviews. This cookie is set by GDPR Cookie Consent plugin. Is a 2002 Ford Focus a non interference engine? The result is usually catastrophic engine failure. In thinking about this situation, the 302 might go either way on the freewheeling issue. All 2019 Ford Fusion engines have a timing chain and are interference. First, its a very reliable engine that is known for its durability. 4.0L Interference Belt driven engines like some of the 4 cylinders are not interference, but the valves will still hit if the belt breaks at 6000 rpm (Zetec for example). The Coyote had to remain the same size as the outgoing 4.6-liter V8. 1.6L DOHC Interference The engine is called an interference engine for a purpose; because the piston interferes with the completely open valves and occupies the same space. Acura All except SLX Interference SLX Non-Interference Chrysler In this video, LMR goes over everything you need to know about the small block Ford 302 engine for 1979-1995 Mustangs. Best Tuner for 6.0 Powerstroke [Review and Buying Guide]. On the contrary, a non-interference engine does not allow the piston to travel into any area where the valves open. If there isnt much clearance, its likely that your engine is interfering. There is no standard repair process for bent valves. 3.3L V6 Non-Interference 4.7L Interference, 1.5L Non-Interference 3.3L Interference, 1.0L Interference However, if youre looking for better fuel economy, the SOHC version may be a better choice. If Im going to spend the big bucks, it will go toward an engine that does better than 185 Hp, and 10 mpg for sure. The result is usually catastrophic engine failure. Ford Focus (2005-2011) Compact cars like the Ford Focus have been around since 1998. Reviewers love the 4.6-liter V8. However, when you own a vehicle, you must know its features. Late Model Restoration has no affiliation with Ford Motor Company, Roush Enterprises, Eaton, or Saleen. I recently started a blog about welding gear.I am also a DIY welding enthusiast because it is affordable for any household work. Is a 302 Ford an interference engine? You can have several timing belt components replaced too. Can I just replace my timing chain or is there potential valve damage? The Coyote V8 engine also concurrently debuted in the 2011 Ford F-150. An interference engine is one that has insufficient clearance between the valves and pistons if the cam stops turning due to a broken timing belt. In 1984, Ford added its CFI or central fuel injection to the 4-speed automatic transmission Mustangs. * 3.5LV-6 Non-Interference This is the definition of an interference engine: the valves, when fully open, extend into the cylinder area. Non-Interference We also use third-party cookies that help us analyze and understand how you use this website. 2.0L DOHC Interference The 302 cubic-inch engine was first referred to by Ford as a 5.0-liter V-8, which was a metric unit of measurement rather than the U.S. customary notation. Fords interference diesel engines include 2.0-liter, 2.3-liter and 2.4-liter units. This engine was rated at 118 horsepower and 193 lb-ft of torque. When timing belt or timing chain snaps occur and the cam stops as a result, the engine remains intact, hence you only need to change the timing chain or belt. There is a sound coming from the engine that sounds like it could be the timing chain slapping the timing cover but I don't know. 1.6L (Chevette & 1000) Non-Interference Its twin snorkel design drew cool air through the inner fenders via flexible rubber tubes. 240DL 2.3 Non-Interference The Ford 302 has been used in quite a few Ford, Lincoln and Mercury models over the year including vans, pickup trucks and of course the popular Mustang. The camshaft was taken from a 351 Windsor engine that Ford used in their Torino and a double-roller timing chain replaced the previous silent-link chain. The timing chain on the 4.0 SOHC engine is made of metal links that are connected to each other with rivets. Alternative Views: ****A $410.00 core charge will be added during checkout****. 2.1L Diesel Interference Its a reliable engine that is known for its durability and performance. The Ford 4.0 V6 engine is a popular choice for many Ford vehicles. 4 When to know if your car has an interference engine? 2003 Ford Focus Timing Belt Or Chain All the North American 2003 Ford Focus models have timing chains or timing belts and are interference or non-interference depending on the engine. Remove the oil filter housing and dipstick tube. 3.0L SOHC 24 Valve Engine Interference +1 on the Gates look-up chart. The video below will also help you determine if your car has a timing belt or chain. This includes everything from the older 289/302/351 pushrod V8s to the latest OHC 4.6L and 5.4L V8s. Its also a powerful engine that provides good performance, and it gets good gas mileage. . Yes your vehicle is an interference engine, therefore if the timing belt breaks then engine damage will result. If you suspect an intake manifold gasket leak, its best to take your vehicle to a mechanic for diagnosis and repair. 1.3L Interference Non-interference engines on the other hand do not share the same powertrain components with normally aspirated, non-interference. 1.6L DOHC (1989-97 Prizm Except 1989-92 GSI) Interference Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. If there is no gap, it is an interference engine. It was used in a variety of vehicles, including the Ford Ranger, Explorer, and Aerostar. Thus, being placed so high, the piston can never interfere with the valves. 2.2L DOHC Interference The Ford Mustang comes with one of three engines a 4.0-liter V6 that makes 210 horsepower and 240 pound-feet of torque, a 4.6-liter V8 that makes 300 horsepower and 320 pound-feet of torque and a 5.4-liter V8 that makes 500 horsepower and 480 pound-feet of torque. Support the engine with a jack and remove the drive belts. 1.6L SOHC Non-Interference 1.6L DOHC (4A-F & 4A-FE) Non-Interference The firing order was also changed from 1-5-4-2-6-3-7-8 to the 351 Windsor sequence of 1-3-7-2-6-5-4-8 which we have detailed in the image below: The cylinder heads were larger than those of the 4.2-liter and most people referred to this as normal 5.0 intake ports. For 1985, the first roller-cammed 5-liter engine was offered. This timing chain cassette can be replaced without having to pull the engine out of the vehicle. The Ford small-block V8 design work originally began in 1960. This is a big job, but it can be done without pulling the engine. If the cam phasers can cause the valves to hit the piston if tuned wrong, then it has to be an interference engine in the first place. The Ford Mustang comes with one of three engines a 4.0-liter V6 that makes 210 horsepower and 240 pound-feet of torque, a 4.6-liter V8 that makes 300 horsepower and 320 pound-feet of torque and a 5.4-liter V8 that makes 500 horsepower and 480 pound-feet of torque. For instance, if the cylinders and pistons are damaged, there is no other option but to replace or rebuild the engine. 2.0L DOHC Interference 4.0L Interference Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum, Send a private message to flareside_thunder, 2006 F150 5.4 Sputtering - New thread CONDENSED, Do Not Sell or Share My Personal Information. It was also used in some Lincoln and Mercury vehicles. Is a 2003 Ford Focus an interference engine? In an interference engine, however, one or more of the valves protrudes into an area through which the piston may travel. Unbolt the power steering pump and remove it from the engine. The difference between an interference and non-interference engine is whether there is a gap between the valve that is fully open and the piston that is in the top position. I have heard that some 302 high performance engines in the mustangs were interference due to high lift cams but not in the trucks. Hello, Today my engine went kaput in my '75 Lincoln. This website uses cookies to improve your experience while you navigate through the website. 2.5L 4 Cyl. You also have the option to opt-out of these cookies. S/V/C 70 Interference You might ask, is it important to know whether your car has an interference or non-interference engine? The 302 cubic-inch engine was first referred to by Ford as a "5.0-liter" V-8, which was a metric unit of measurement rather than the U.S. customary notation. Is a 302 Ford an interference engine? Drop-In Ready Long Block Crate Engines BP3060CTCD Engine Assembly, Crate Engine, Ford, 306, Small Block, Each Part Number: MLL-BP3060CTCD ( 11 ) Estimated Ship Date: Monday 3/6/2023 Free Shipping $6,919.00 Add To Cart Compare Wish List 1.6L DOHC Non-Interference Not so with a non-interference engine. I, Dencan Brain BOIDAR, call myself a Torque master. This cookie is set by GDPR Cookie Consent plugin. 2.0L SOHC Non-Interference Make offer. Non-interference engines are generally cheaper to repair since there is less risk of damaging the valves if the timing belt breaks. PUSHROD CRATE ENGINES // 302. The 16 Valve Volvo engines are all Interference $542.02. 3.0L SOHC 24 Valve Engine Interference Non-Interference Not so with a non-interference engine. On the other hand, interference engines have a short space between the pistons and valves and when the . I have never had that happen but that doesn't mean it wont. These cookies will be stored in your browser only with your consent. 1.6L Non-Interference 2.3L SOHC Gasoline Non-Interference If there is no gap, it is an interference engine. Belt driven engines like some of the 4 cylinders are not interference, but the valves will still hit if the belt breaks at 6000 rpm (Zetec for example). These are typically found without variable valve timing (VTec) or variable cam timing (VTec-e). 1.6L 16 Valve Engine Interference We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. The 5. In 1979, the 5.0-liter engine was a carry-over from the 1978 Mustang 2. Yes to non-interference design on that model (some others like SVT were interference design) but there have been people who bent valves when timing belts broke at speed despite the theoretical non-interference design. Yeah it's an interference engine, there will be damage if the belts snapped. Yes, this is Ford 4.0 An Interference Engine. SHE MAIN . The compression ratio was 8.3:1 and an a/c compressor cutoff was added whenever the engine saw wide-open throttle. It has a cast iron block and aluminum heads and uses regular unleaded gasoline. 2.2L Diesel Interference All Honda engines are Interference except 3.0L & 3.2 which are Non-Interference. 1.6L 124 Series Interference Contact Us - 2.2L Interference With over 30 years of experience in remanufacturing stock replacement, marine and high-performance engines, Tri Star Engines is . The size zero (0) rating of the Kei class was instituted as a tax preference but also provided recognition that the small cars met Japans strict guidelines for road handling and safety. The first engine debuted in the form of a 221 cubic-inch small block that was offered in the Ford Fairlane. In an effort to avoid the federal governments gas-guzzler tax in 1986, the Ford engineers developed their sequential electronic multipoint fuel injection with speed density management. How many liters is a noninterference engine? Additionally, interference engines typically have better fuel economy due to their higher compression ratios. This can cause major engine damage and is why its so important to keep the timing belt in good condition and replace it every 60,000 miles or so. The cookie is used to store the user consent for the cookies in the category "Other. 2.8L Diesel Interference, 1.5L DOHC Interference This is an unusually early 1968 302 block factory assembled as a 289. 2.4L Diesel Interference With Ford, generally anything with a chain is gonna be interference. 1.8L Interference The Zetec IS an interference engine, give that regular pistons will hit the valves. 1.9L Non-Interference It reaches speeds of 200MPH with ease. 1.7L Non-Interference Interference engines are highly preferred because they are proven to breathe better, and their compression ratio is a bit higher, which guarantees better performance. The following is a list of popular Domestic and Asian engines and whether they or interference type or not. Non-interference engine animation. For this reason, its important to keep up with the recommended maintenance schedule for your 4.0L Ford engine, which includes replacing the timing belt every 60-90 thousand miles. These cookies will be stored in your browser only with your consent. Better yet, on your next oil-change schedule, ask the mechanic about it. List of Ford Interference Engines. Sequential multi-port fuel injection Configuration V Number of cylinders 6 Valves per cylinder 4 Valvetrain layout DOHC Bore, mm 95.5 mm (3.76 in) Stroke, mm 86.6 mm (3.41 in) Displacement, cc 3,726 cc (227.4 cu in) Type of internal combustion engine Four-stroke, naturally aspirated Compression Ratio 10.5:1 Power, hp If the timing belt or timing chain breaks, assess the damage as soon as possible. Free shipping-ENGINE REBUILD KIT- 1968-1984 . 3.0L Inline 6 VVT-i (1998-2006) Interference Chassis dynos proved these flywheel ratings were mediocre! For 1994 and 1995, Ford rated the high-output 302 at 215 horsepower and 285 lb-ft of torque. Thanks for the welcome. Yes, all 289/302/351 engines that I know of are definitely interference. Besides, it always pays to know. The torque output is 250 lb-ft at 4250 rpm. The cookies is used to store the user consent for the cookies in the category "Necessary". The difference between an interference and non-interference engine is whether there is a gap between the valve that is fully open and the piston that is in the top position. Scroll down . This 302 ran fine until this little boggle. 5.0L/302 5.0L/302 . Technicians also have service manuals to check if the vehicle model features an interference or a non-interference engine. If you have a Ford 4.0 Sohc engine, then at some point you will need to replace the timing chain. Pricing: ---Eautorepair.net--- 1 month subscription $19.99 per vehicle 1-year subscription $39.99 per vehicle 4-year subscription $59.99 per vehicle ---Alldatadiy.com--- 1-month subscription $19.99 per vehicle 1-year subscription $29.99 per vehicle 3-year subscription $129.99 Which one should YOU choose? This means that if the timing belt were to break, the valves and pistons would collide, causing major damage to the engine. 16 valve diesels Interference The engine has seen some revisions since then, the most recent being in 2018. These engines 'breathe' better than non-interference, and they often have higher compression, which equals more power. With Ford, generally anything with a chain is gonna be interference. A local highly recommended mechanic told me that based on my description, I need a new timing chain (this is an '84 with less than 80K miles!) With Ford, generally anything with a chain is gonna be interference. Oil leaks are one of the most common problems with the 4.0L V6 Ford engine. Finally, you can ask a mechanic to check for you. Just clear tips and lifehacks for every day. The following lists will allow you to determine whether your vehicle has an interference engine or not. In 1968, small-block Ford dampeners became wider as a means of absorbing more harmonics in Ford's quest for a smoother engine. Vehicle Transmission Drive Wheels [email protected] RPM Torque (lb-ft) @ RPM; Ford Edge Sport (2011 - 2014) Six-speed automatic: AWD: 305 @ 6,500 rpm: 280 @ 4,250 rpm It pays to know. The 4.0L V6 Ford engine has been around for a while, powering everything from the Explorer to the F-150. Yes ALOT of Ford smallblocks had the nylon coated teeth and they can play hell. The 4.0 SOHC is a reliable engine that is known for its high performance and fuel efficiency. While this engine produced less horsepower than the 85 version at 200 horsepower, it did make 285 lb-ft of torque which was an increase of 15 lb-ft. 1.8L DOHC (Prizm) Interference Late-1985 CFI-equipped engines received a bump in power to 180 horsepower and 260 lb-ft of torque. Moreover, it refers to a 4-stroke internal combustion piston engine where the valves are completely open. 3.2L Interference This engine type relies on timing belts, chains, or gears. 6XXX six-cylinder engines Interference 3.3L 3MZ-FE V6 W/ V VTi Interference The 2.0L Duratec engine in these models has a non-interference design.This engine is paired with either a 5-speed manual or a 4-speed automatic transmission and has a maximum output of 140 horsepower and 136 lb-ft of torque.. For anyone looking for a dependable, affordable, and fuel-efficient vehicle, the . The camshafts are what open and close the valves in each cylinder, so it is important that the timing chain stays tight and does not slip off of the sprockets. I question the timing chain on mine even tho its only got 123k on it. Necessary cookies are absolutely essential for the website to function properly. Sep 26, 2016 Svtzx555 said: I work at Ford and let me end this thread forever.. SVT zetec is interference 850 Interference The cookie is used to store the user consent for the cookies in the category "Analytics". Well, it might not be that important for you because you can always bring your vehicle to a car care shop when needed. Then its crate engine time, and Ill have a good quality, double roller timing chain to put on it! 1-8. . This 5.0 high-output engine was rated at 157 horsepower and 240 lb-ft of torque. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. With an interference engine, a malfunctioned timing belt can cause the pistons to strike the valves. It reaches speeds of 200MPH with ease. So, when the timing sprocket or chain breaks, the cam stops, and the pistons still moving at speed, start hitting opened valves. i think they will hit except anything with the E6 heads on it. Ford Interference engines list Ford Non Interference Engines list Ford Interference engines list 2.0L DOHC (Probe) Interference 2.0L Diesel Interference 2.0L SOHC Gasoline (Escort, Focus & Tracer) Non-Interference 2.0L SOHC Gasoline (Capri, Pinto & Ranger) Non-Interference 2.2L Interference 2.3L Diesel Interference All Suzuki engines are non-interference except for one, the Suzuki Kei car 1.0L 3-cylinder S-K series this engine is very popular in Japan. Essentially, it was a scaled-down version of the 302. Any usage or mentions of these terms throughout our website and print ads are used for identification purposes only. Ford used cast iron for the engine blocks and cylinder heads throughout the production of the 302 in Fox Body and SN95 Mustangs. The year Ford underrated its 302s in preparation for the complete Mustang redesign in 1994. 2.2L Diesel Interference is less likely than 1 or 2 with a problem. You can also have your vehicle checked for cylinder damage. The original Escort was powered by a 1.6L 4 cylinder, 69 horsepower engine with a two barrel carburetor. The 4G63 is an interface engine. Reply Like # 2 3.2L Interference Next time. Interference engines are common among the latest automotive models. What are some interference engines made by Ford? Yes, all 289/302/351 engines that I know of are definitely interference. 3.5L Interference I am wondering if the noise I am hearing near the front of the engine is the timing chain slapping the side of the timing cover. He is a professional car buyer and consumer advocate working closely in the industry to improve the buyers experience. 4.0L 740I Interference, All except SLX Interference Joel. The fastest Ford on Earth is the GT supercar, with an incredible 740HP.