These cookies will be stored in your browser only with your consent. The Ford 4.0 an Interference Engine, meaning that the valves and pistons share the same space in the cylinder head. If it was me, I'd be ready for the worst, pull the engine and have at it. Does the 4.6 have cam phaser problems? They include wiring diagrams and technical service bulletins. The 4.0 engine was used in a variety of vehicles, including the Ford Explorer, Ranger, and Mustang. S60 Interference This is an unusually early 1968 302 block factory assembled as a 289. Required fields are marked *. VR6 Interference, B200 (E, F, G, GT, FT) Interference 2.8L Non-Interference 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. Still running strong! Privacy Statement - This website uses cookies to improve your experience while you navigate through the website. 3.3L V6 Non-Interference I've always been fascinated with cars and tools accessories. When the engine is running, the valves open and close to allow air and fuel into the cylinder and exhaust out. 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 R. With Ford, generally anything with a chain is gonna be interference. 1.6L SOHC Non-Interference V8 engine All Honda engines are Interference except 3.0L & 3.2 which are Non-Interference. Not so with a non-interference engine. S80 Interference This engine was rated at 140 horsepower and 250 lb-ft of torque with an 8.4:1 compression ratio. 3.3L Interference, 1.0L Interference This can be caused by overheating or by excessive pressure in the cooling system (from things like a blocked radiator). We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Stock, it may live, if you have larger valves or more cam lift, it will hit for sure. 1.6L DOHC 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. (B2500) Non-Interference Greg Macke is a car blogger and author of My 7 Secrets to Buying a High Quality Used Car. If a timing belt breaks in an interference engine while the engine is running, the pistons and valves may collide, because they do not have enough clearance between them if the cam stops . However, you may visit "Cookie Settings" to provide a controlled consent. 4.0L Interference From 1983 to 1985, the 302 didnt change all that much. 2.0L Non-Interference In 1987, there were more changes to the 302. SOHC Non-Interference, 1.3L DOHC Interference 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. It was used in a variety of vehicles, including the Ford Ranger, Explorer, and Aerostar. 2.4L DOHC Non-Interference (Valves may hit if camshafts turn out of time) 1.8L 131 Series, Brava Interference Oil leaks are one of the most common problems with the 4.0L V6 Ford engine. Share. The timing chain on the 4.0 SOHC engine is made of metal links that are connected to each other with rivets. A used but running unit will already do the job. This cookie is set by GDPR Cookie Consent plugin. In this video, LMR goes over everything you need to know about the small block Ford 302 engine for 1979-1995 Mustangs. This engine was a direct result of Fords efforts to meet the ever more stringent CAFE requirements for fuel mileage. 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. 4.19 out of 5 stars. Until next time, for all things 1979 to present Mustang and SVT Lightning; keep it right here with the real enthusiasts, LMR.com! For those of you that are thinking, that the 302 came way before 1979 trust us, we know that. The Ford 4.0 engine is a V6 engine that was first introduced in the 2006 model year. Is a 2003 Ford Focus an interference engine? 5.4L 928 Interference, DOHC Interference The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". This engine is used in a variety of Ford vehicles, including the Edge, Escape, and Explorer. 1.6L DOHC (Nova) Non-Interference Lastly, these valves extend to any area through which the piston may travel. Unfortunately, this scenario can damage the valves. If youre having trouble starting your vehicle or if its running rough, it could be due to ignition coil failure. Another advantage of the 4.0 SOHC engine is that it is relatively easy to work on, compared to other engines with more complex designs. It was also used in some Lincoln and Mercury vehicles. If there is a gap, the engine is called a non-interference engine. Cookie Policy - 3.0L V6 Non-Interference is 302 an interference engine? The garage and the belt kit should both have warranty to cover something like this, depending on whether it was a defective part or incompetence that caused the issue. 2.5L 944 Interference It pays to know. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. An interference engine is a type of internal combustion piston engine in which one or more valves in the fully open position extends into any area through which the piston may travel. The short block featured flat-top pistons without any valve reliefs. 1.8L V6 Non-Interference The 302 block has slightly longer cylinder skirts to accommodate the 302's .013-inch longer stroke. 1.6L SOHC Non-Interference This means that there are two types of engines in this regard: interference and non-interference engines. An engine with an intake and exhaust manifold fed by dual-intake throttle bodies, and three consecutive cylinders sharing a single cylinder head might seem to some as having the design characteristics of an interference engine. 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 . Interference engines made by Ford include its 1.6-liter single overhead cam engine, 2.0-liter double overhead cam engine, 2.2-liter engine, 3.0-liter single overhead cam engine and 3.3-liter engine. Finally, you can ask a mechanic to check for you. The video below will also help you determine if your car has a timing belt or chain. Ford Escort. . If you see an oil leak, its best to get it fixed as soon as possible to avoid any further damage to your engine. 6XXX six-cylinder engines Interference It was also used in trucks. With Ford, generally anything with a chain is gonna be interference. 3 Is the 4.0 L SOHC an interference motor? The Zetec IS an interference engine, give that regular pistons will hit the valves. Just as the title says - is the 5.0 an interference engine? Late-1985 CFI-equipped engines received a bump in power to 180 horsepower and 260 lb-ft of torque. 2.3L Diesel Interference Hopefully itll have the extra clearance to be freewheeling. The roller design allows for more cam lift and more aggressive lobe profiles than traditional flat tappet designs. Trucks/SUVs, yes. FORD 302 / 289 4.7L 5.0L V8 Master Engine Rebuild Kit w/ Stage-3 HP Camshaft. The result is usually catastrophic engine failure. Sheesh, Im a victim of my own proofreading! This iteration of the five-liter engine was rated at 175 horsepower and 245 lb-ft of torque. All 2019 Ford Fusion engines have a timing chain and are interference. 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 What is a Salvaged Car and Should you Buy One? All Honda cars from 1984 through 1996 have interference engines. Registered. Website content, text, & images Copyright 2023 LMR.com - All Rights Reserved. Non-interference engines on the other hand do not share the same powertrain components with normally aspirated, non-interference. The "7F29" casting date code means June 29, 1967 at Ford's Cleveland foundry. 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. Have used synthetic oil in it a lot, which seems to help. 4.7L Interference, 1.5L Non-Interference It has a cast iron block and aluminum heads and uses regular unleaded gasoline. meaning, do the valves come far enough down into the combustion chamber that they overlap where the piston raises to before detonation (meaning they could be bent/shattered by the piston in the event of a timing chain failure)? Ford replaced the 5.4 V-8 in 2010 with the 411-horsepower 6.2-liter V-8, although the 2011 Ford Shelby GT500 still used the four-valve 5.4 V-8. 4.0L 740I Interference, All except SLX Interference The compression ratio was 8.3:1 and an a/c compressor cutoff was added whenever the engine saw wide-open throttle. 1.8L DOHC (Storm) Interference, All Honda engines are interference except 3.0L & 3.2 which are Non-interference, 1.5L Interference 3.2L Interference If your engine interferes, it means that the valves and pistons share the same space in the cylinder. The first engine debuted in the form of a 221 cubic-inch small block that was offered in the Ford Fairlane. If there is no gap, it is an interference engine. Better yet, on your next oil-change schedule, ask the mechanic about it. tappet cam. The Ford engineers supplied a larger mass air flow meter which was the same size as the '93 Cobra. Its also a powerful engine that provides good performance, and it gets good gas mileage. 2.4L Diesel Interference Save my name, email, and website in this browser for the next time I comment. Yeah it's an interference engine, there will be damage if the belts snapped. 3.2L Interference n2.2L Gasoline Interference This is because pistons will continue moving, which will most likely hit valves in a completely open position. Either than or the AIR pump making noise. Member since Apr 2021. 3.0L V6 Non-Interference It is a DOHC engine with 24 valves and produces 250 horsepower at 6000 rpm. Be careful not to damage the gasket surfaces when doing this. but he said in his experience, these old 302's have very little valve clearance and it probably isn't worth the $500 to replace the timing chain since it is almost certain that I have bent valves as well These engines 'breathe' better than non-interference, and they often have higher compression, which equals more power. The F150 5.0L engine has a displacement of 3.9L while the F150 6.2L has a displacement of 4.6L, as well as the 6.8L and 6.9L models with a displacement of 5.4L and 5.5L, there is also the 6.7L with a displacement of 6.8L, 6.9L with a displacement of 7.0L, and the new Power Stroke 9.0L which has a displacement of 9.3-liters. Is the 302 in / 5.0 Liter an interference engine? This is because vehicle manufacturers aim to make engines increase their efficiency. Required fields are marked *. I'm looking to do a full rebuild/engine build with mostly new parts. 240 SOHC Non-interference Make offer. 2.2L Diesel Interference 940 SOHC Non-interference You might ask, is it important to know whether your car has an interference or non-interference engine? 1.8L DOHC Interference The cookie is used to store the user consent for the cookies in the category "Analytics". 3.0L Interference The cookie is used to store the user consent for the cookies in the category "Analytics". The Ford small-block V8 design work originally began in 1960. The Ford 4.0 L V6 is a popular engine choice for many Ford vehicles. 1.8L DOHC (Prizm) Interference 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 interference between the top of the piston at TDC, & any opened valves. Unbolt the power steering pump and remove it from the engine. 1.6L DOHC (Storm) Interference Jun 15, 2012. In 1968 Ford began to produce what would become one of the longest-running production engines ever. If you have a Ford 4.0 Sohc engine, then at some point you will need to replace the timing chain. Reviewers love the 4.6-liter V8. 1.8L Gasoline Non-Interference Bubbabud 2011 XLT SCAB Ecoboost, The following errors occurred with your submission, Ford F150 Forum - Community of Ford Truck Fans. 2.0L DOHC Interference, 1.5L (1A-C, 3A-C & 3E) Interference 3.3L 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. This cookie is set by GDPR Cookie Consent plugin. Read More About Ford Escape Abs Sensor Problems Cause & Fix. 2.4L SOHC Interference Is a 302 Ford an interference engine? A car engine that runs on water? Is there a way to check the slack in the timing chain without pulling everything apart? It was a 4.2-liter or 255 cubic inch variant of the 302 which had a smaller bore of 3.68 inches. These cookies will be stored in your browser only with your consent. 3.0L SOHC 24 Valve Engine Interference Our Price (USD): $3,394.00. Part Number . 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. 1.6L DOHC (1989-92 Prizm GSI) Non-Interference Thanks for the welcome. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. a rocker arm is too loose, except perhaps a bit of a deeper tone. The 4.0 SOHC engine was introduced in the Ford Explorer in 1996, and it quickly became one of the most popular engines in the Ford lineup. The 2.0L 110 hp and 130 hp North American 2003 Ford Focus models have timing belts and are non-interference. Villager 3.3 Non-Interference, 1.5L Interference 4 When to know if your car has an interference engine? The camera will be inserted through the spark plug hole. 2.0L DOHC (Probe) Interference Just clear tips and lifehacks for every day. 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. Yes ALOT of Ford smallblocks had the nylon coated teeth and they can play hell. 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 . No compression on all cyls. These leaks can come from a variety of places, including the oil pan gasket, front crankshaft seal, and rear main seal. With Ford, generally anything with a chain is gonna be interference. 2 Is my motor interference or non interference? The 16 Valve Volvo engines are all Interference Yes, all 289/302/351 engines that I know of are definitely 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. 1.6L DOHC Non-Interference Simply as an Amazon Associate, we earn from qualifying purchases. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. But opting out of some of these cookies may affect your browsing experience. 3.8L Interference 1.8L Diesel Interference Crate Engine, Ford 302 Stock Drop In, Long Block, Assembled, External Balance, Cast Iron Cylinder Heads, Each. VW Beetle Sculpted Into A Sphere Cars as Art. So here comes 1993! SHE MAIN . Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. The 5.0L became available in the AWD Ford Explorer in 1997. I have heard it said Ford never put a belt on an interference engine, so if you have a chain your results may vary. * 3.5LV-6 Non-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. 1.8L Interference 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. I couldn't tell you the last time I saw an oil pressure gauge stock in a car. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. 3.0L SOHC 12 Valve Engine Non-Interference 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. This is because repair options vary, depending on the type or severity of the damage. The year Ford underrated its 302s in preparation for the complete Mustang redesign in 1994. If you are not sure whether your vehicle has interference or a non-interference engine, bring it to a car care shop. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Does anybody know if the 460's in 1975 were interference engines? Toyota Non Interference Engine List 1.5L (3E-E & 5E-FE) Non-Interference 3.0L Inline 6 (1992-97) Non-Interference Registered. B5XXX five-cylinder inline engines -Interference Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. Yes! He is a professional car buyer and consumer advocate working closely in the industry to improve the buyers experience. The Kei class was developed to promote small cars in response to oil shortages after World War II. 3.5L SOHC Interference 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. The 302 is freewheeling. Fortunately, the 4.0L SOHC is not an interference engine so a timing chain failure wont bend the valves. Non-interference engines are generally cheaper to repair since there is less risk of damaging the valves if the timing belt breaks. While still very debatable, the power improvement over the 1993 engine was primarily from airflow improvements. Eliseo Carrillo (7) offer up reviews. They should have cut reliefs in the pistons for valve clearance of course. Is the Ford 4.6 L an interference engine? SLX Non Interference, 1.4L, 1.5L & 1.6L Interference 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. Its a reliable engine that is known for its durability and performance. 1.6L (Chevette & 1000) Non-Interference Pulled out the 302 out of my 1966 Mustang. Check with an engine shop, they should be able to tell you when Ford finally woke up and made the improvement. 2.4L DOHC Interference With Ford, generally anything with a chain is gonna be interference. 3.0L SOHC 24 Valve Engine Interference When to know if your car has an interference engine? The engine is called an interference engine for a purpose; because the piston interferes with the completely open valves and occupies the same space. 3.5L Interference 7 When to change the timing chain on a non interference engine? What is your definition of an interference engine? Non-Interference All Honda engines are interference except 3.0L & 3.2 which are Non-interference 1.8L 4 Cyl. The short block featured a redesigned forged piston with a 30-thousandths deep dish and valve reliefs which netted a 9:1 compression ratio. 1.4L Non-Interference 1.8L DOHC Gasoline Interference 2.2L Diesel Interference The Ford 4.0 engine is a V6 engine that was first introduced in the 2006 model year. On the right is a 5.0L dampener with a 50-ounce offset balance. What makes a car an interference or non interference engine? 2.0L Brava, Spider Interference, 1.3L Non-Interference This means that more air and fuel can be compressed into the cylinders, resulting in a more powerful explosion when combusted. What characteristics allow plants to survive in the desert? It only uses a qt.