Part #1422 & 1492 are street legal in 50 states for 1995 and older emissions controlled vehicles under CARB EO #D-250-3. Saleen is a registered trademark of Saleen Incorporated. then they got to blank slate a second set of heads and came up with the boss version, which shares nothing with the gt heads but outside appearance and valvetrain architecture. The Stage 1 heads supplied by JPC and RGR featured full CNC porting. Ford engineers looked first to basic hotrodding tricks to achieve their goals and then went to work conceiving a better cylinder head. Automotive Tech, Ford, Chevy, if it's tech, it's in here. M-6049-M50B Ford Performance Right Cylinder Head 55.9cc Chamber Volume (smaller versus 15-17 57cc) (Livernois Motorsports Ford Gen II Coyote 5.0L Cylinder Head Flow Chart) *Flown On 600 Flow Bench* Cam Lift: Intake : Exhaust .100: 99 . The Mustang 5.0L Coyote Engine Gen 1, Gen 2 & Gen 3 differences are explained by Landan with LMR. Equipped with the stock heads, this combination produced 515 hp and 450 lb-ft of torque. We actually havent had to go as far as swapping seats out on the Gen-3 heads for considerably larger valves because they flow so well from the factory. Ford used forged-steel I-beam connecting rods and forged aluminum pistons to handle the 12 pounds of boost the supercharger throws at the engine. If you opt for 20152016 cylinder heads, be prepared to go the entire way with the complete timing chain and phaser package. The 20112014 head has a shorter intake port flange. Using the stock retainers and keepers, the new springs offered 80 pounds of seat pressure and 200 pounds of open pressure. From a flow rate standpoint, the stock heads offered 306 cfm while ported heads stepped things up with 338 cfm. Total Engine Airflow CNC machines the intake and exhaust ports along with the combustion chambers. This is the revised 2015 Coyote cylinder head with revised high-flow intake ports, stiffer valvesprings, larger intake and exhaust valves, and a wider intake port flange for the CMCV induction system. It makes some serious horsepower, thanks to a 5.2L cross-plane crank and supercharger setup. ". The introduction of the Coyote was Ford's chance to speak to the enthusiast by bringing back the iconic 5.0L. Ford Performance is introducing the Shelby GT350 5.2L cylinder head at press time, along with the corresponding induction and cylinder block, making it possible to build a 5.2L Coyote with the cross-plane crank (more cubes for your Coyote project and the added benefit of these GT350 heads). The revised 2015 head from the exhaust port side. If youre going to run the 20152016 cylinder head on your 20112014 block, use the 20152016 cylinder head gasket with the larger VCT oil feed hole in front. The naturally aspirated port has a little longer and straighter intake port, whereas the exhaust port on the blower program is as big as we can get it. Information will be updated as the release of the new S650 is coming. Feel free to flood me with information so I can help. Kevin. Recommended for engines from 302-393 cubic inches, operating up to 6000-6500 RPM. PRO1 LS 15 205cc Heads; PRO1 LS 15 225cc Heads; PRO1 LS 15 250cc CNC Heads . It has a 161cc intake port that flows between 250-280 cfm at 0.600 lift, depending on the flow bench. You are using an out of date browser. Ive heard that boss heads don't have a lot left to port on them. Although the Coyote cylinder head appears to be a derivative of the Shelby GT500 head, it isnt. (Photo Courtesy Ford Performance Parts), The GT350 5.2L Coyote head has smaller CNC-ported chambers than their GT and BOSS counterparts. On its website JPC says, The Stage 1 CNC-ported heads increase flow 9 to 14 percent (depends on lift) and utilize OEM valves, valvesprings, and retainers. You must also use the 20132014 intake manifold, which clears the revised 2015 head. This meant smaller lash adjusters, springs, and rocker arms. -State of the Art CNC Head Porting -Valve Job -Pac Springs -Pac Ti Retainers **Must Ship your heads** Tweet You may also like What Makes The F150 Truck Coyote Engine Different? They have a ton of valve area, and over 100% volumetric efficiency stock. Below are some changes and improvements on the 2012-13 Boss 302 engine over the 2011-14 Mustang GT version. On the new S550 Shelby GT500, these monsters of an engine were mated to a Tremec 7-speed dual-clutch transmission to help ensure smooth and fast shifts. JavaScript is disabled. 2023 Power Automedia. Coyote Alternative: Trick Flow Gets 466 HP out of a Ford 2V Mod Motor; Back in Black Nighthawk LS . Equipped with the stock heads, this combination produced 515 hp and 450 lb-ft of torque. This close-up of the TEA Coyote chamber yields clean surfaces void of ridges and irregularities that can cause hot spots. With 444 hp, at the time, this was Ford's most powerful naturally aspirated engine they had ever produced. Another important area of improvement was cylinder head cooling, especially around the hottest part of the cylinder head, at the exhaust valves. For a better experience, please enable JavaScript in your browser before proceeding. While this does not sound like a huge improvement, the addition of the new 10-speed transmission perfectly paired with this new gen 3 motors to be the fastest factory Mustang GT ever! The stock heads were removed and replaced by the CNC heads from JPC/RGR using the stock head gaskets. From today's Detroit News: "The redesigned 5.0-liter V-8 engine pushes out 460 horsepower and 420 pound feet of torque. Read More DART MACHINERY, INC. 2097 Bart Ave . Many compare both the Pushrod vs Coyote motor so we have broken down everything you need to know when choosing the best engines for Fox Body Mustangs. because stocks heads flow great unless you're trying to go for 600+ WHP. They're also on sale for like 300.00 off right now. Off came the cam covers, damper, and front cover to allow access to the cam sprockets and timing chains. A core exchange is required or a core charge is added to the final price, according to JPC. Ford Coyote Gen 3, GT 350 engines ALL NEW RETAIL HEADS now SHIP FREE in the Continental US! 205cc Intake Port Volume Flow numbers as tested on a SuperFlow SF-600 flow bench In addition to enlarging and optimizing the intake and exhaust ports via CNC machining, the combustion chamber and valve areas also get serious attention from the 5-axis CNC. A new composite intake manifold uses taller ports, a larger plenum, and an 87mm throttle body. Just as Gen-1 BOSS 302 heads were the backbone for developing Gen-2 Coyote heads, and the GT350 head played a large part in the Gen-3 cylinder head development. A different part number seal is required to fit the larger brass guides. The engine increased displacement, all-new heads, and higher-lift cams contributed to the massive power increase. Below are some specific features unique to the 2011-2012 Coyote engine. A lot was learned from the GT500 head, yet none of it was carried directly over to the Coyote, according to Ford. Livernois has some great ports for Coyote heads. Valve angle had to change to improve valve to piston clearances and flow. Greater runner length gives you better low-end torque. Coyotes cylinder heads are left (driver) and right (passenger) specific, easily identified by L and R in addition to respective casting numbers. Powered by BigCommerce With 0-60 times coming in at 4.3 seconds, one 0.2 seconds behind the 5.4L Supercharged Shelby! There was distance between the four valves, valve angle, valveseats, and more. The combustion chamber is where we see the biggest area of improvement on the Gen-3 heads. Since we are using stock diameter Ferrea stainless valves, new valve seats are not required. It is suggested that you head-stud your Coyote build unless youre planning in-vehicle head removal. YOUR HEADS ARE REQUIRED, Valve Job is done on a CNC Newen Single Point Machine, Ferrea 1.452 Stainless Steel Intake Valves, Ferrea 1.222 Stainless Steel Exhaust Valves, New Bronze Valve Guides also removal,installation & sizing of bronze guides. You'll be first to know about Race Pages Digital latest news! The best place to go for anything Mustang related! Cylinder Head Gasket Ford 5.0L Gen-3 Coyote Modular V8 .040" MLS , 94.5mm Bore, LHS Cometic C15436-040 | Engine \ Brand \ Ford \ 5.0 V8 Engine \ Gasksets \ FORD | Official webstore of TurboWorks manufacturer. Starting with the 2015 S550 Mustang, we saw a version of the 5.0 officially called the gen 2 Coyote. | Sitemap, JPC Racing- CNC Stage 1 Coyote 5.0 Cylinder Heads, JPC Racing- CNC Stage 3 Coyote 5.0 Cylinder Heads, JPC Racing - Coyote Rear Water Fittings (Rear of Head), JPC Racing - Coyote Head Water Fittings 12 ORB (Rear of Head), JPC Racing - Coyote Head Water Fittings 12 ORB (Front of Head), JPC Racing "Coyote" 5.0L Short Block Rated 1100 HP, JPC- Tremec Magnum XL S197 Conversion Complete Kit, JPC- Custom Turbo Coyote Camshafts Stage 2 "2011-2014", Comp Cams- CR 2015+ Mustang GT N/A Stage 3 Cams, JPC- Custom NA Coyote Camshafts "2015-2017", Comp Cams- 2011-2014 Mustang Stage 3 N/A NSR Camshafts. These Aluminator Short Blocks serve as a strong foundation for the enthusiast that wants to spec and finish a Coyote build . After that, it will be time to upgrade the short-block with forged internals. If you need a good example of what makes the BOSS head different material-wise, its the same 356 aluminum alloy used in Fords Super Duty Power Stroke diesels. If ported the heads flow well but are limited by piston to valve clearance and you can only add duration that limits what the engine can do. Despite this slight drop, torque on the MPR port wins above 5,900 rpm. Answer inside this article! Search: Coyote Head Flow Numbers. "Flow numbers are just one variable used for various equations to analyze port characteristics in a very complex system. I used Gen1 timing procedures because my car is using a Gen1 ecu.. Performance & security by Cloudflare. Look forward to hearing from you! (817) 556-2434 (888) 774-8802 sales@frankensteined.net. Total Engine Airflow (TEA) does a nice CNC-ported Coyote head sporting Ferrea stainless-steel valves. The as-cast port dimensions (170cc intake and 66cc exhaust) compared very favorably to the stock E7TE 5.0L head castings. Big Block Edelbrock RPM Heads Edelbrock 60929, 60829, 5093 You can email the site owner to let them know you were blocked. (Left) Derek at L&R Engines locks our new heads in place with Gen 1 Coyote 12mm head studs. Ported it can go to 362 CFM at .550" S Sohcgt96 Registered Joined Feb 29, 2004 508 Posts Luke About | Contact | Terms | Privacy, Production cylinder head for the 5.2L GT350, Fully CNC-ported intake ports, exhaust ports, and combustion chamber, Larger port sizing than the 2015 5.0L Coyote CMCV cylinder heads, 38.3-mm intake valve and 32.5-mm exhaust valve; 2015 5.0L Coyote valve sizes are 37.3-mm intake, 31.8-mm exhaust, New valvetrain geometry allows for greater valve lift, Lightweight hollow-stem intake valves and sodium-filled exhaust valves, Heads do not include camshafts, rocker arms, and lash adjusters, Requires unique camshaft due to valvetrain geometry (M-6550-M52), Also requires 5.2L rocker arms and lash adjusters (M-6564-M52), Fully CNC port intake and exhaust runners, Precision grind all 32 valves with backcut on intake valve, Custom assembly ensuring all tip heights are at stock height, Trickflow/Pac racing 85-pound valvesprings, FORD COYOTE ENGINES: HOW TO BUILD MAX PERFORMANCE. It was as simple as sending out a mass email to the group for name ideas. The Gen III engines were the firstborn from the original LS1 in 1997 through 2002. s550 mustang Cylinder heads cannot be removed in the vehicle if you use head studs. Call it the team approach to induction, cams, and heads. 26125CTS-KIT COMP Cams Valve Spring Kit with tool steel retainers 2 The Gen 2 heads can be used on the Gen 1 Coyote block as long as the Gen 2 Head Gasket (included in PN M-6067-A50) is used due to the oil feed hole Gen 2 Cylinder Head PN - Cookie Duration Description; cookielawinfo-checkbox-analytics: 11 months: This cookie is set by GDPR Cookie Consent plugin. S2000 head flows similar to the coyote head and it makes 120hp/L flow numbers are not everything. Ford Performance Mustang GT GEN 3 Coyote 5.0L Cylinder Head RH (2018-2021) Ford Performance Mustang GT GEN 3 Coyote 5.0L Cylinder Head RH (2018-2021) Retail Price: $1,040.00 You Save: $235.05 (23%) Our Price: $804.95 or 4 interest-free payments of $201.24 with FREE Shipping Part Number: 161 M-6049-M50B MPN: M-6049-M50B Add to Cart Write a Review We sell tune parts for cars. When it came to porting our Gen-3 heads, we turned to MPR Engines. | Sitemap, JPC Racing- CNC Stage 1 Coyote 5.0 Cylinder Heads, JPC Racing- CNC Stage 2 Coyote 5.0 Cylinder Heads, JPC Racing - Coyote Rear Water Fittings (Rear of Head), JPC Racing - Coyote Head Water Fittings 12 ORB (Rear of Head), JPC Racing - Coyote Head Water Fittings 12 ORB (Front of Head), JPC Racing "Coyote" 5.0L Short Block Rated 1100 HP, Comp Cams- CR 2015+ Mustang GT N/A Stage 3 Cams, JPC- Tremec Magnum XL S197 Conversion Complete Kit, Comp Cams- 2011-2014 Mustang Stage 3 N/A NSR Camshafts, JPC- Custom NA Coyote Camshafts "2015-2017", JPC- 2015-2017 Mustang GT Tremec Magnum XL Complete Conversion Kit, PAC Racing- Coyote Drop-in Valve Spring Kit. The GT350 heads exhaust ports are CNC precision machined, which offer excellent scavenging. They are capable of handling upwards of 40lbs of boost and 9000 RPM. Cramming the cylinders full of air as efficiently and densely as possible equates to horsepower. Retiring from the company in 2016, Mark continues to expand his career as a car builder, automotive enthusiast, and freelance journalist to provide featured content and technical expertise. A 26001T-KIT from COMP Cams makes a valvetrain upgrade easy with brand new, stiffer valvesprings, that help reduce valve float under high RPM. Build 4: Gen 3 Type 65 Coupe #59. Neal has owned a 1996 3.8L, 2003 3.8L (Cobra Swapped), 2003 GT, 1998 3.8L (4.6L SOHC Swapped), 1990 GT Hatchback, 1990 GT Convertible, 2006 GT Single Turbo, and 2011 Twin Turbo/Cammed GT. Once again, the power came from Ford Racing in the form of a Boss intake manifold and matching throttle body. MMR World Class CNC ported cylinder Heads are now available to the public, whether it be a stage 1 for a Mild street car or a MMR stage 3 for total domination in classes such as Coyote Modified - MMR has you covered! Remaining inventories of new BOSS heads as well as used show up at swap meets and parts houses. This version of the Coyote engine would rev past 7,000 RPM with ease and produced 444 horsepower! Fasteners. is porting stock GT heads even worth it for forced induction applications for most street built applications? All numbers from a super-flow 600 @28 in on a 3.630 stock bore. Though we did not flowbench test the heads, JPC claims that the porting improved the flow rate of the Coyote heads from just under 300 cfm to over 330 cfm (roughly 10 percent). 4673-32 COMP Cams spring seats for MPR bronze valve guides. An Evolution Performance and L&M Engines built GEN 1 5.0L Coyote engine powers Cyrneks Mustang. According to Ford, theres a measure of copper in the 356 alloy, which improves heat transfer under extreme conditions. Most of the machining time, though, is spent on the valve job machine. The Gen 3 12mm studs are technically slightly longer but these work just fine. Slawko Racing Heads says these are the same CNC-ported Coyote heads used by Justin Cyrnek in his 2013 Mustang GT racecar. Solano Verde Water District. 5.0L GEN 3 ALUMINATOR NA SHORT BLOCK 12:1 - Just like the fully built up engines, Aluminator Short Blocks are hand assembled and use Manley connecting rods with ARP rod bolts and Mahle forged pistons. Next came the Comp cams from the stock heads, followed by the lifter/rocker assemblies (they were attached by a clip), and finally the stock head bolts. Build your own custom newsletter with the content you love from EngineLabs, directly to your inbox, absolutely FREE! Below are the differences between the 5.2 GT500 Predator engine compared to the 5.2L GT350 Voodoo engine. 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. ARP also supplied a set of main studs and damper bolt, but the main studs will have to wait until we upgrade the bottom end. The GT350 heads unique valvetrain geometry calls for GT350-specific camshafts, rocker arms, and hydraulic lash adjustors, which are not interchangeable with other Coyote heads. Exhaust flow with a 1 3/4 inch pipe and standard comp. (Photo Courtesy Ford Performance Parts). What brand and type of headers are you using? Exceeding 200 often takes a dedicated race motor with 13.0:1-plus compression, a solid-roller cam, and dry-sump oiling system. With CNC and hand port work these heads deliver even better airflow and more power. Stage 3 cam specs are 236/243 Intake and Exaust at .050" and only .492/.453 I/E lift. There was a big debate among the group between naming it either Road Runner, Coyote, or other versions of Coyote but ultimately settled on the Coyote name that we love today. While sharing the same name, these engines had some significant differences for their specific applications. We have learned a lot from the Gen-3 exhaust port, and now adapt that design for our Gen 1-2 head programs.. 2023 Justin's Performance Center WHAT MAKES THE F150 COYOTE ENGINE DIFFERENT? Given our past experience with the valve float issue, we were excited about the increase in valvespring pressure. This is the as-cast factory chamber, which has not been CNC machined. GEN 3 Hemi Heads 5.7 Hemi Airflow @ 28" Flow tests below show results from our SAENZ 680 Flow Bench valves (2.100" int, 1.575" exh) 5.7 Heads 85.4cc comb chambers As you can see, these are extreme flow heads. Swapping a 5.0 Coyote engine has become one of the most popular engine swaps over the last few years and adds a significant amount of horsepower and torque. However, you are money and time ahead buying the Ford Performance Racing Parts CNC-ported head or sending your heads to Total Engine Airflow for CNC port work. THESE HEADS ARE ON AN EXCHANGE PROGRAM. But airflow is airflow and power is power. Having exhausted the basic bolt-ons, you might think we would be done with the Coyote, but youd be wrong. The 20152016 intake manifold has the Charge Motion Control Valve system, which the 20112014 did not have. (Photo Courtesy Ford Performance Parts). Mated to a new 10-speed automatic transmission, it drops the GT's -to-60 time to under 4 seconds when the pony car is set to Drag Strip mode." The action you just performed triggered the security solution. We have used them on a 740 HP, 392" engine running pump gas. Early Access To Exclusive NEW Products, News, Tech & MORE! gen 3 coyote head flow numbers. Plan on fresh gaskets and bolts whenever you swap heads. These changes include the following improvements and changes over the gen 2 GT Coyote variants. Our engine was already equipped with COMP Stage-II camshafts, MMR guides, MMR billet oil pump gears, and MMR HD secondary chains. When we first started this Killer Coyote series, we wanted to illustrate as many of the performance components available, so we followed up with a bonanza of bolt-ons, including Zex nitrous, a Kenne Bell supercharger, and we even swapped the stock cams for a set of Stage 2 NSR grinds from Comp Cams (PN 191100). Improvement came with minute changes in port shape. It appears it was designed to flow well at .500" and that's about all in stock form. Camshafts. In 1995 Mark started photographing drag races at his once local track, Bradenton Motorsports Park. (Left)The exhaust port is raised up slightly on a Gen-3 head, so the exit path is slightly different. In terms of power and function, how ever, it is surely a different head. I really doubt they flow close to that. Not compatible with OEM pistons. A common question among the Mustang community is "What is different about the Coyote Mustang engines through out the years?" Was wondering if anyone had any info on which heads would be better for an NA build. Email address We've learned a lot from the Gen-3 exhaust port, and adapt that design for our Gen 1-2 head programs. says Eichhorn. engine. Build Thread and Video. The most common comparison seems to be with the Yates D3 heads, which commonly have a peak intake flow of approx. Using the formula, the extra 32 cfm had the potential to increase power by 66 hp, but the head swap netted just 10 extra hp, from 495 hp to 505 hp. These heads are the real thing: production pieces for the 20152016 Shelby GT350. So stay tuned! Our final Gen 3 Coyote update arrived in the 2021 F-150. The Coyote engine, with its high revving powerband and desire for boost, is a real force to be reckoned with! This Coyote offered the best BMEP number weve ever tested on a street motor on pump gas. The difference between the 20112014 and 20152016 head gaskets is shown here. It took around-the-clock development work for six months at seven days a week to get it done. These CNC-ported heads are actually a joint venture between JPC Racing and Rich Groh Racing (RGR) Engines. Its the small, lightweight valves that allowed the engine to utilize such (relatively) light spring pressure. FOLLOW: Written by Jim Smart and Posted with Permission of CarTechBooks. Because the Coyotes top end was designed more as a package than just cylinder heads, cam, and induction, it produces impressive airflow numbers rarely seen from a factory Ford engine. The cookie is used to store the user consent for the cookies in the category "Analytics". With the BOSS head you not only get improved function but also strength in a better-alloy cocktail. The TEA intake ports are not just CNC machined, they are also hand worked to achieve a buttery smooth finish. #ford #mustang #coyote #compcams This is a quick video of me timing my 3-2-1 coyote engine. What would be best for an all out n/a build? This is the 20152016 head gasket with enlarged VCV provision (arrow). On top is the 20152016 head gasket with a revised VCV oil galley passage (arrow), which is larger. The S650 Mustang carries over the 10-speed 10R80 transmission, but the Dark Horse manual transmission gets the improved Tremec 3160 transmission. THESE HEADS ARE ON AN EXCHANGE PROGRAM. MPR installs new bronze guides on its ported head packages. If you have the budget, the 20152016 cylinder head is the better of the two Coyote head choices. Truck won't get here for minimum 12 weeks so Im using that time to prepare accordingly. In addition, cooling passages are improved for better heat transfer. Slawko Racing Heads is another source for CNC-ported Coyote cylinder heads that contributes a strong racing background and a wealth of experience. (Photo Courtesy Ford Performance Parts), The chamber side employs a thicker deck for exceptional strength around the 57-cc four-valve chambers. If you liked this article you will LOVE the full book. You cannot interchange 20112014 and 20152016 timing components. The all-new Coyote could make serious horsepower with many aftermarket parts while providing amazing driveability and reliability. Stick aroundthis killer Coyote is about to grab that Road Runner and ring his little neck. Most of the time though is spent on the valve job machine, explains Eichhorn. Unlike the pushrod 5.0L predecessor to the Coyote that was in almost everything Ford offered like the Crown Victoria, F-150 truck, LTD, Lincoln Towncar, Explorer, etc., the modern high revving Coyote was in two Ford Powered vehicles: Mustang & F-150. More power is good but more power everywhere is even better. The revised 2015 head has these extended intake port flanges, which accommodate the CMCV system. The one they decided to take was from John Norcott, who was one of their V-8 engine planners. We'll send you raw engine tech articles, news, features, and videos every week from EngineLabs. Though a head swap would be enough for most enthusiasts, we decided the Coyote needed even more power. Despite the fact that we have increased the power output of the Coyote by 123 hp and 45 lb-ft (from 448 hp and 405 lb-ft to 471 hp and 449 lb-ft), we want even more before giving the blower and turbo systems one more chance. Below are some changes and improvements on the 2013-14 Coyote 5.0L engine over the 2011-12 version. Since our mild Coyote was making nowhere near that much power, we couldnt help but question the logic of extra cardio for our Coyote. Install a 5/16" (0.3125) diameter restrictor in this hose." That would be why you don't want to just plug the heater hoses off! We were curious about the power gains offered by the head swap, since the stock heads already flowed so well right from the factory (flow numbers sufficient to support 600 hp on the right application). SBF SHP 205cc Aluminum Heads; GEN III LS NEXT. I'm assuming you are contemplating an aggressive cam setup? Mustang GT 5.0L Gen 3 aluminum cylinder head Improved flow compared to the 2011-2014 (Gen 1), and 2015-2017 (Gen 2) cylinder heads This compares to just 166 cfm and 112 cfm (from port volumes of 127cc and 44cc). Rough surfaces are gone. By Wolf Richter for WOLF STREET. Ford engineers also took what they learned from the 3.5L and 3.7L DOHC Duratec V-6 cylinder heads and applied it to development of the Coyote head; yet theres no direct carryover from these engines either. The stage 3 Cylinder head is our top of the line offering for the coyote, it features the following: 5 axis CNC machined Fully assembled w/o camshafts Custom CNC valve job Custom Ground Stainless Intake Valves Custom Ground Stainless Exhaust Valves Custom Valve Springs Stock Guides Upgraded valve seals TI Retainers Stock locks At the same time, we installed a set of early Gen-1 12mm ARP head studs that work perfectly on the Gen 3 engines, along with a fresh set of factory head gaskets. Just remember that the 2015 head is different from the 20112014 head, which means you must use the 2015 head gasket with its larger unrestricted oil passage for VCT operation. s197 Mustang racer Justin Burcham founded JPC Racing back in 2001 with the goal of providing something the industry long needed: customer service, hands-on experience and knowledge, and a straightforward approach to working with people. Known stock Coyote intake port head flow numbers are 289.4-cfm intake and 201.4-cfm exhaust at .500 inch, which is remarkable, but theres more. 37.7mm Intake Valve 1.484-inch (.4mm larger than 15-17) Given the impressive output, we were thankful for the Aeromotive A1000 fuel system employed on the engine dyno. Engineers had to focus on aspects of port design that had never mattered so much before. Weatherford, TX 76088 If youre going to run the more aggressive 20152016 camshafts on 20112014 cylinder heads, you must use the 20152016 timing chains, sprockets, and cam phasers. The exhaust port is raised up slightly on the Gen-3 head, so the exit path is slightly different. There are aftermarket aluminum blocks that boldly expand the bore to 4.185, but this is considered the maximum.