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SOHC Non-Interference, 1.3L DOHC Interference I Got A 1996 Ford 5.0 302 Engine Out Of A Explorer U Can Hear It Run Its All.complete With Transmission Good For A Hot.rod. PUSHROD CRATE ENGINES // 302. All Honda engines are Interference except 3.0L & 3.2 which are Non-Interference. Every engine is designed to be reliable and function without harming the engine, but when a foreign object breaks off and lodges in the intake or exhaust of an engine, thats when trouble begins. 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. The torque output is 250 lb-ft at 4250 rpm. Check with an engine shop, they should be able to tell you when Ford finally woke up and made the improvement. You also have the option to opt-out of these cookies. If a valve and piston collide, serious engine damage will occur. An interference engine refers to a 4-stroke internal combustion piston engine type. Moreover, you can bring your vehicle to a car care shop for a leak-down cylinder test or a valve-gap check. 3.0L DOHC Interference They should have cut reliefs in the pistons for valve clearance of course. With Ford, generally anything with a chain is gonna be interference. Interference engines are common among the latest automotive models. What is causing the plague in Thebes and how can it be fixed? Additionally, interference engines typically have better fuel economy due to their higher compression ratios. Stock, it may live, if you have larger valves or more cam lift, it will hit for sure. 3.3L 3MZ-FE V6 W/ V VTi Interference I hope this low performance, (185 HP @ 3800 rpm) engine uses dished pistons and low lift figures on the valves, while the Mustangs 302 HO (?) If it was me, I'd be ready for the worst, pull the engine and have at it. Simply as an Amazon Associate, we earn from qualifying purchases. +1 on the Gates look-up chart. When the piston is at the top dead center (TDC), both intake and exhaust valves are closed. 2.5L 944 Interference The video below will also help you determine if your car has a timing belt or chain. Its also a powerful engine that provides good performance, and it gets good gas mileage. All rights reserved 2023 Copyright RoadSumo.com. Ford engineers have taken into account the fact that not all cars are using the exact same size of the engine and when designing their engines, they need to be able to accommodate several different sizes. How many interference engines are there in a Suzuki? 3.3L Interference, 1.0L Interference A car engine that runs on water? See more at: https://carbuyingsupport.com/, Your email address will not be published. (That is, as soon as the temperature here gets into the 40 zone again.) Interference engines are highly preferred because they are proven to breathe better, and their compression ratio is a bit higher, which guarantees better performance. They include wiring diagrams and technical service bulletins. Yes, all 289/302/351 engines that I know of are definitely interference. If your engine interferes, it means that the valves and pistons share the same space in the cylinder. It has a cast iron block and aluminum heads and uses regular unleaded gasoline. Be careful not to damage the gasket surfaces when doing this. Does a Ford Fusion have an interference engine? 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. All 2019 Ford Fusion engines have a timing chain and are interference. 2.4L Diesel Interference Alternative Views: ****A $410.00 core charge will be added during checkout****. Modern interference engine models have bigger valves that open up to the combustion chamber. The "C8OE-6015-A" indicates a 302 block. S80 Interference In Canada, Ford had a V8 engine in 1956 and called it the Y-Block, based on the flathead design that was used a decade earlier. 3.0L & 3.2L SHO Non-Interference These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. This website uses cookies to improve your experience while you navigate through the website. The original Escort was powered by a 1.6L 4 cylinder, 69 horsepower engine with a two barrel carburetor. It reaches speeds of 200MPH with ease. 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. If you are not sure about the type of engine your vehicle has, the list above is expected to help you identify it. There were quite a few changes to this engine in 1986. But it does create an expensive repair for the vehicle owner. 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. 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. The Zetec IS an interference engine, give that regular pistons will hit the valves. 3.0L SOHC 12 Valve Engine Non-Interference Interference engines are common among the latest automotive models. The Ford 4.0 V6 engine is a popular choice for many Ford vehicles. 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. Welcome to the forum.the Ford 302 in a truck app. This includes everything from the older 289/302/351 pushrod V8s to the latest OHC 4.6L and 5.4L V8s. You can do it by improving the compression ratio and allowing the valves to improve airflow. 2.5L V6 Non-Interference Condition: Used (normal wear) Vehicles - Auto parts & Accessories. 1.9L Ecotec DOHC Intereference When to know if your car has an interference engine? I have heard it said Ford never put a belt on an interference engine, so if you have a chain your results may vary. 3.0L Inline 6 VVT-i (1998-2006) Interference Is a 302 Ford an interference engine? 2.5L Non-Interference From 1979 to 1995, the Mustang 302 was a liquid-cooled, overhead-valve, 90-degree V-8 engine. Per the OEM Manuals, the 4.6L is an interference engine. This cookie is set by GDPR Cookie Consent plugin. This 5.0 high-output engine was rated at 157 horsepower and 240 lb-ft of torque. The torque output is 250 lb-ft at 4250 rpm. If you see an oil leak, its best to get it fixed as soon as possible to avoid any further damage to your engine. 2.5L V6 Non-Interference Remove the oil filter housing and dipstick tube. Fords interference diesel engines include 2.0-liter, 2.3-liter and 2.4-liter units. There is no definitive answer to this question as it depends on a number of factors, including the make and model of the engine, driving conditions, and personal preferences. Pulled out the 302 out of my 1966 Mustang. In 1987, there were more changes to the 302. This makes it a good choice for those who are not experienced in working on engines, or for those who want to save money by doing their own repairs and maintenance. 1.8L Interference 4.7L Interference, TDI 1.8L 8 valve Non-Interference The cookies is used to store the user consent for the cookies in the category "Necessary". The best place to go for anything Mustang related! First, its a very reliable engine that is known for its durability. Our 302 Ford crate engines for sale use stock OE heads but have a mild cam to give your old 302 new life. Answer (1 of 2): That depends on the manufacturer (there are several that make 3.5L engines). 4.3L Interference 6 What makes a car an interference or non interference engine? 2.7L 944 Interference The automatic transmission-equipped Mustangs with CFI still used the non-roller engine and in early 1985 they were rated at 165 horsepower and 245 lb-ft of torque. Yes ALOT of Ford smallblocks had the nylon coated teeth and they can play hell. What Is a Hemi Engine? Come to think of it, Ive never seen a 302 in. The result is usually catastrophic engine failure. 3.5L SOHC Interference There is no standard repair process for bent valves. Remember that the timing chains have self-adjusting hydraulic tensioners, so there isnt a lot of slack when the get worn. The Coyote had to remain the same size as the outgoing 4.6-liter V8. The result is usually catastrophic engine failure. This means that there are two types of engines in this regard: interference and non-interference engines. A non interference, or free wheeling engine is an engine where the pistons will not contact any open valves at any time. B230E (high-compression) Interference But opting out of some of these cookies may affect your browsing experience. It refers to a 4-stroke internal combustion piston engine wherein the valves are in a completely open position. tag which was short for high output. It only uses a qt. Non-interference engines on the other hand do not share the same powertrain components with normally aspirated, non-interference. Another way is to find out your cars engine model and check its engine type using the lists below. These cookies ensure basic functionalities and security features of the website, anonymously. Registered. If they are interference type engines, Id pay close attention to the belt change intervals! 3.5L Non-Interference, 2.0L Non-Interference 1.6L SOHC Non-Interference It was also used in some Lincoln and Mercury vehicles. Yes, all 289/302/351 engines that I know of are definitely interference. 1.3L SOHC Interference However, the worst-case scenario is the possibility that the engine will get extremely damaged. The following is a list of popular Domestic and Asian engines and whether they or interference type or not. 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 302 block has slightly longer cylinder skirts to accommodate the 302's .013-inch longer stroke. 2.2L Diesel Interference 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. 3.2L Interference 2.3L Interference VR6 Interference, B200 (E, F, G, GT, FT) Interference The cookies is used to store the user consent for the cookies in the category "Necessary". In most cases, there is a bent valve if there is a large valve gap. 3.0L Interference Is a 2002 Ford Focus a non interference engine? For 1985, the first roller-cammed 5-liter engine was offered. is not a interferance engine .note I have never worked on a 302 square inch engine did they do that for hood clearance or what?.Just kidding. Does the f150 have an interference engine? In 1984, Ford added its CFI or central fuel injection to the 4-speed automatic transmission Mustangs. The engine block and cylinder heads were cast iron. 1.6L DOHC Interference Yes your vehicle is an interference engine, therefore if the timing belt breaks then engine damage will result. 2.7L DOHC Interference This website uses cookies to improve your experience while you navigate through the website. . Yes, all 289/302/351 engines that I know of are definitely interference. The Boss 302 and 302 Cleveland may also be commonly referred to as the 5.0 Liter or 302 5.0. This cookie is set by GDPR Cookie Consent plugin. police engine package. How To Know if you have a Timing Belt or a Timing Chain Watch on Audi 1.8L 1.9L Interference 2.8L V6 90 100 Quattro A4 A6 Interference BMW 2.5L 325I 525I Interference 4.0L 740I Interference Acura If there is no gap, it is an interference engine. 3.3L Interference Remove the radiator hose and coolant overflow bottle. Finally, another common problem with this engine is head gasket failure. Ford used its 2.0-liter engine in the 1993 to 1998 Probe, its 2.2-liter engine in the 1985 Ranger truck, and its 2.0-liter engine in the 1986 to 1988 Ranger. 2.2L Diesel Interference The same proven methods Greg uses when buying cars for his clients are available to you at: Copyright Greg Macke. Can I just replace my timing chain or is there potential valve damage? Interference engines have one thing in common: they all have multiple valves per cylinder. what year is your engine, stock or modified, on my 86 gt i cant really mess with the heads to much w/o notching the pistons for valve reliefs b/c of the flattops I think your safe with one of the newer engines 88-95. why do you ask??? . Its durable, powerful, efficient, and easy to maintain what more could you ask for? Oil leaks are one of the most common problems with the 4.0L V6 Ford engine. Eautorepair.net redraws factory wiring diagrams in color and includes the component, splice and ground locations right in their diagrams. However, to keep this article from getting too long-winded and boring you to death, we're going to cover some of the higher-level changes throughout the 1979 to 1995 era. This increases the lifespan of the engine and also makes it more efficient. If you have any engines that use a timing BELT, the Internet is stuffed with info on which are interference or free wheeling. The timing chain is located in the front of the engine and is responsible for opening and closing the intake and exhaust valves in each cylinder. Although, early 87 cars did have E5TE cylinder heads which were first used on the 1985 truck engines. How to Distinguish Interference from Non-interference Engine The latest vehicle models feature interference engines. im not to keen on that use of the term "may live" haha, Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W), Do Not Sell or Share My Personal Information, 2023 Super Duty Order Tracking / No Off Topic Please, 73 F100 302 with Mustang 5.0 stock headers. Early Access To Exclusive NEW Products, News, Tech & MORE! 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. In 1980, Ford introduced a new version of its small-block V-8 engine. This may also cause one of the timing chains to break (typically the front left chain). In this video, Landan goes over everything you need to know about the small block Ford 302 engine for 79-95 Mustangs. i think they will hit except anything with the E6 heads on it. Toyota Non Interference Engine List 1.5L (3E-E & 5E-FE) Non-Interference These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The 4.2-liter engine, fortunately enough for enthusiasts, was only around for two model years which were 1980 and 1981. Instead, you can have the cylinder head rebuilt and the bent valves replaced. The roller design allows for more cam lift and more aggressive lobe profiles than traditional flat tappet designs. With Ford, generally anything with a chain is gonna be interference. Find FORD 5.0L/302 Ford small block Windsor Crate Engines and get Free Shipping on Orders Over $99 at Summit Racing! The camera will be inserted through the spark plug hole. The 4-barrel carb came with a redesigned automatic choke and was rated at 165 horsepower, which was 10 less than the manual. Not so with a non-interference engine. 2.3L 4 Cyl. 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. XC90s Interference, Greg Macke is a car blogger and author of My 7 Secrets to Buying a High Quality Used Car. Non-Interference 2.0L Diesel Interference 1.6L 124 Series Interference it had 220k before it blew but now im selling parts of which is still good which is quite a bit of them. This is because vehicle manufacturers aim to make engines increase their efficiency. 1.8L DOHC Gasoline Interference One of the reasons why the 4.0 SOHC engine is so popular is because it offers a great balance between power and economy. The Ford 4.6L Crown Victoria had an interference engine from 1991 to 1998. Trucks/SUVs, yes. 2.4L DOHC Non-Interference (Valves may hit if camshafts turn out of time) The 5.0L became available in the AWD Ford Explorer in 1997. What is used by primase to synthesize a primer? This is a big job, but it can be done without pulling the engine. (Image/Jim Smart) Since we specialize in 1979 to present Mustang restoration and performance parts, we're going to talk about the history of the push rod 302 from 1979 to 1995. The new 5.0 carried an H.O. It is a V6 engine that features four valves per cylinder and dual overhead cams. Is Ford 2.0 an interference engine? With Ford, generally anything with a chain is gonna be interference. But it did have some issues for a number of drivers. Talk about your 8th and 9th generation Ford F150 trucks. R. California-bound cars saw the edition of a mass-air flow system in 1988, but all other cars were still speed density. Sep 26, 2016 Svtzx555 said: I work at Ford and let me end this thread forever.. SVT zetec is interference With Ford, generally anything with a chain is gonna be interference. If you suspect that your timing chain may need to be replaced, its best to take your vehicle to a qualified mechanic or Ford dealership for diagnosis and repair. If there is a gap, the engine is called a non-interference engine. Are there any Honda engines that are non interference? On the other hand, interference engines have a short space between the pistons and valves and when the . It uses forged rods and a forged crankshaft, as well as traditional fuel injection. 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 is an unusually early 1968 302 block factory assembled as a 289. Timing chain warns the driver unlike timing belts. Save my name, email, and website in this browser for the next time I comment. 3.6L Intereference, 1.0L Interference In 1979, the 5.0-liter engine was a carry-over from the 1978 Mustang 2. Crate Engine, Ford 302 Stock Drop In, Long Block, Assembled, External Balance, Cast Iron Cylinder Heads, Each. You can do it by improving the compression ratio and allowing the valves to improve airflow. I will not however, rebuild the engine if there was piston to valve damage. The 2V stands for, as it does most usually, 2 venturis, and describes a two barrelled carburettor. The Ford 4.0 engine is a V6 engine that was produced by Ford from 2002 to 2012. Yeah it's an interference engine, there will be damage if the belts snapped. 4.7L 928 Interference These are typically found without variable valve timing (VTec) or variable cam timing (VTec-e). Acura All except SLX Interference SLX Non-Interference Chrysler Required fields are marked *. Is the Ford 4.6 L an interference engine? In thinking about this situation, the 302 might go either way on the freewheeling issue. Yes its true! You can call me gearheads or petrolheads. If youre considering a vehicle with a 4.0 engine, its important to know the difference between the SOHC and DOHC versions. 2.0L DOHC (Contour, Escape, Focus, Mystique, ZX2 & 1999-2002 Cougar) Non-Interference, 2.0L SOHC Gasoline (Escort, Focus & Tracer) Non-Interference, 2.0L SOHC Gasoline (Capri, Pinto & Ranger) Non-Interference, 1.6L DOHC (4A-F & 4A-FE) Non-Interference, 1.6L DOHC (4A-GE & 4A-GZE) Non-Interference, 3.0L Inline 6 (Except 1998 2JZ-GE) Non-Interference, 3.0L Inline 6 VVT-i (1998 2JZ-GE) Interference, 2.8L V6 90 100 Quattro A4 A6 Interference, 2.4L DOHC Non-Interference (Valves may hit if camshafts turn out of time), 3.0L SOHC 12 Valve Engine Non-Interference, 1.6L DOHC (1989-92 Prizm GSI) Non-Interference, 1.6L DOHC (1989-97 Prizm Except for 1989-92 GSI) Interference, 1.6L SOHC 8 Valve Engine (Tracker) Non-Interference, 1.6L SOHC 16 Valve Engine (Tracker) Interference, 3.0L Inline 6 VVT-i (1998-2006) Interference, 2.0L DOHC (626, MX-6 & Protege) Non-Interference, 2.0L 8 valve Non-Interference (However, there have been instances of bent valves), B5XXX five-cylinder inline engines Interference, The 16 Valve Volvo engines are all 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). 240 SOHC Non-interference Most Popular for You: 11 Salient Questions to Ask When Buying A Used Car The timing belt or chain is responsible for keeping the pistons and valves in sync with each other; thus, if this component fails or stretches, it can cause the pistons to strike the valves. the 5.7 is an interference motor so there will probably be some kind of damage, anything from new heads to a piston, in either case head removal will be needed for diagnosis. 1.8L Diesel Interference Moreover, its valves are completely open and extend into areas through which the piston can travel. Its basically the same as any gadget or electronic items that you own. Ask. Ford Escort. B204 (E, F, GT, FT) Interference Non-Interference 2.0L DOHC Interference All Ford Taurus engines apart from the 3.2L and 3.0L DOHC (1989 - 1995) have a timing chain and are interference. Non-Interference 2.3L 4 Cyl. If the piston travels far enough in the cylinder to actually hit the open valves, that's an interference engine. 1.6L (Chevette & 1000) Non-Interference Additionally, the Ford 4.0 V6 is easy to work on and has reasonably priced parts. 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. 4.7L Interference, 1.5L Non-Interference 1.6L SOHC (Prizm) Non-Interference is 302 an interference engine? Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. 7 When to change the timing chain on a non interference engine? This may have been to distinguish the engines from the 300 cu Ford straight-six engine, otherwise known as the 4.9L. The Ford engineers supplied a larger mass air flow meter which was the same size as the '93 Cobra. It pays to know. 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. 1-8. . Is a 2003 Ford Focus an interference engine? 1.6L SOHC Interference Yes your vehicle is an interference engine, therefore if the timing belt breaks then engine damage will result. It was used in a variety of vehicles, including the Ford Ranger, Explorer, and Aerostar. 2007 GT: JLT intake, SCT tuner, Eibach Pro-kit (springs + struts/shocks), Currie Adjustable LCA's with Johnny Joint, BMR relocation brackets, MAC axleback exhaust, Powerslot rotors . It was a 4.2-liter or 255 cubic inch variant of the 302 which had a smaller bore of 3.68 inches. Sheesh, Im a victim of my own proofreading! 2.4L SOHC Interference His high quality car buying tutorials offer help to the car buying public. I recently started a blog about welding gear.I am also a DIY welding enthusiast because it is affordable for any household work. Per the OEM Manuals, the 4.6L is an interference engine. All rights reserved. I'm looking to do a full rebuild/engine build with mostly new parts. It is a DOHC engine with 24 valves and produces 250 horsepower at 6000 rpm. 2.3L Non-Interference Chains are longer lived than most timing belts, and there are no recommended chain replacement intervals published by Ford for these engines. This means that more air and fuel can be compressed into the cylinders, resulting in a more powerful explosion when combusted. However, when you own a vehicle, you must know its features. The following lists will allow you to determine whether your vehicle has an interference engine or not. Cookie Policy - 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. Moreover, these valves extend to any area through which the piston may travel. Finally, you can ask a mechanic to check for you. Besides, it always pays to know. With over 30 years of experience in remanufacturing stock replacement, marine and high-performance engines, Tri Star Engines is . 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. Tools Bible is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising & linking to Amazon properties. 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. 2.2L Diesel Interference Registered. What are some interference engines made by Ford? Both engines are available with either manual or automatic transmissions. Unplug the electrical connections to the starter motor and alternator. This iteration of the five-liter engine was rated at 175 horsepower and 245 lb-ft of torque. A thick timing belt, which looks sturdy, must be replaced if the belt is old because the threads weaken with age. CAFE stands for Corporate Average Fuel Economy. (B2500) Non-Interference Greg Macke is a car blogger and author of My 7 Secrets to Buying a High Quality Used Car. List of Ford Interference Engines. However, there are a few notable differences between the Coyote in the F-150 and the Coyote in the Mustang. With Ford, generally anything with a chain is gonna be interference. 2.0L DOHC (626, MX-6 & Protege) Non- Interference Other common brands coming with non-interference engines are Subaru, Suzuki, Volkswagen, and Volvo. When to change the timing chain on a non interference engine? 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. 850 Interference Manage Preferences - Until next time, for all things 1979 to present Mustang and SVT Lightning; keep it right here with the real enthusiasts, LMR.com! However, if youre looking for better fuel economy, the SOHC version may be a better choice. 1.6L Non-Interference 5.0Resto, SVE, LMR are registered trademarks of Latemodel Restoration Supply, Inc. Ford, SVT, Special Vehicle Team, Ford Mustang, Ford Lightning, Mach 1, Mach-E, Shelby GT500, GT350, GT350R, New Edge, Boss 302, 5.0, Cobra R, Fox Body Mustang, Ghia, Turbo GT, SVT Cobra, Cobra Jet, Bullitt, California Special, Cobra, GT, V6, S197, SN95, S550, S650, Dark Horse, F-Series, F-150, Triton, F150 Raptor, Raptor, EcoBoost, Bronco, Bronco Sport, Badlands, Big Bend, Black Diamond, Outer Banks, Wildtrak, and Sasquatch are all registered trademarks of Ford Motor Company. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Primarily, the 5.0L V8 in the F-150 received a lower compression ratio (10.5:1), intake camshafts with less duration, cast iron exhaust manifolds, and revised cylinder . The 4.6 engine was extremely impressive Innovation when it was created in the early 1990s. Not so with a non-interference engine. A single-snorkel air-cleaner was used and new for 1979 was an aluminum water pump and a single v-belt accessory drive belt. Required fields are marked *. (B2500) Non-Interference Greg Macke is a car blogger and author of My 7 Secrets to Buying a High Quality Used Car. 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. 2.0L SOHC Interference There are a few ways to tell if your engine is interfering.