gt350 head flow numbers

Casting numbers accurately identify head castings. If you opt for 2015–2016 cylinder heads, be prepared to go the entire way with the complete timing chain and phaser package. These numbers should equate to a car that doesn’t have the ability to drive normally in a daily sense for most people. Ford was able to develop the BOSS 302 head thanks to being given a proper budget. With our tuning finally dialed in, the ProMaxx BBC heads demonstrated their worth on the 572 stroker by producing peak numbers of 850 hp at 6,800 rpm and 719 lb-ft of torque at 5,500 rpm. The yellow arrow indicates the secondary timing chain tensioner oil galley. To get longevity and durability, a transmission must be properly … [Click here to read more...], Because the Modular V-8 has so many different applications, it is impossible to detail all the removal and installation specifics here. Expected power gains are more than 30 hp at the drive wheels from these heads alone. I … [Click here to read more...], Although I focus great attention on how a transmission is built, installation and proper adjustment after the unit is installed are just as important to durability and longevity. List, Lethal Performance, Inc. 3161 Fairlane Farms Rd Suite 8 Wellington, FL 33414. There are no variations. Because the Coyote’s 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. First, you need to understand some fundamentals of the Ford axles to help … [Click here to read more...], Ford’s AOD evolved into a highly successful mechanically modulated transmission from its 1980 introduction until production ended in 1991. Never has this been more crucial than with Ford’s Modular V-8 because of the many variations produced since 1991. They are factory production pieces for the flat-plane crank 5.2L 2015–2016 Shelby GT350. The Coyote’s generous exhaust ports provide exceptional scavenging compared to their Modular 4.6L/5.4L siblings. View as Grid List. One third of the valve cover extends over the intake casting, and the pushrods run through cast or machined passages in … [Click here to read more...], Few things determine an engine’s personality more than cylinder heads, camshafts, and rocker arms. Although flow numbers are not he most important aspect to a great cylinder head it is important. Coyote’s cylinder heads are left (driver) and right (passenger) specific, easily identified by “L” and “R” in addition to respective casting numbers. This is a left-hand 2015 cylinder head as indicated by the “L.” Visible here are intake and exhaust cam sensor ports and bolt holes (arrows). This creates interference issues with the 2011–2012 intake manifold because of its extensive ribbing. This Tech Tip is From the Full Book, HOW TO REBUILD THE SMALL-BLOCK FORD. These are nice, handcrafted pieces that you can bolt onto your Coyote. Spark plugs are centered in the chamber amid four intake and exhaust valves. Stock air flow on this head tops out at 190 cfm intake and 128 cfm exhaust. On top is the 2015–2016 head gasket with a revised VCV oil galley passage (arrow), which is larger. In addition, cooling passages are improved for better heat transfer. (Photo Courtesy Ford Performance Parts. • 351C-4V closed wedge chamber (bolt-fulcrum rockers) This means the block has the extra reinforcement webbing as well as the extra long head bolts. My philosophy is “There’s no replacement for displacement” when it comes to increasing performance, but the key is how you get it. TEA also stocks parts from all the leading valvetrain manufacturers and can supply countless variations of valvesprings, retainers, and valve materials. We want the best flow numbers with the smallest port volume and the highest velocity (up to a point). Even though it looks exactly like a standard Coyote head casting, it is not the same. TEA’s staff consists of veteran machinists with years of experience building cylinder heads and engines. Exhaust ports on the TEA Coyote CNC-ported head are hand worked after all CNC machining has ended. The BOSS head is cast of 356 aluminum alloy with a smattering of copper for both strength and good heat transfer. Romeo-style camshaft journal girdles were abandoned for Windsor-style camshaft journal towers. Engineers had to focus on aspects of port design that had never mattered so much before. So how do you improve an already great factory cylinder head? Like other stock castings, there is plenty of room for improvement with this head. You can be methodical and cover all the bases during a rebuild and still things can go wrong. It sports plenty of thick aluminum stock where it counts, at the deck and around the valves. The Coyote head’s development and execution was a remarkable turn of events for Ford because it had never been done. Shorter runners make horsepower at high RPM. Gen 3 Coyote Block. Ford engineers looked first to basic hotrodding tricks to achieve their goals and then went to work conceiving a better cylinder head. When “Undercover Ported“, the GT-40 head will flow 202 to 210 cfm intake and 145 on the exhaust side. (Photo Courtesy Ford Performance Parts). Size up the job … [Click here to read more...], This is where you combine the assembled differential with the gear case and hypoid gears. larger port volumes may flow more, but they kill velocity. Here’s a solid back-to-back on a set of unported 5.2 heads compared to a set of Frankenstein’s ported castings atop a Whipple-supercharged GT350. Your numbers could indeed be accurate from the bench they came from, but 310/255 is more on par with what the aftermarket sees on avg. Each sensor is cam specific to prevent installation error. JPC and RGR completely disassemble the heads, including the valveguides, for maximum porting during the CNC process.” JPC adds that turnaround time is approximately one week because they keep CNC castings in stock. It has all the bells and whistles and even gives us information that we didn't even ask for. We know what it costs. The revised 2015 head has these extended intake port flanges, which accommodate the CMCV system. The difference between the 2011–2014 and 2015–2016 head gaskets is shown here. Every set of heads is ready to install directly out of the box. The new Shelby GT350 5.2L head can also be included. Hardware: Varies Rocker Mount Type: Press in stud Runner Volumes: est 140cc int. It is a closed-chamber Cleveland head casting with cooling passages for the Boss 302 block and induction. JavaScript seems to be disabled in your browser. Port #2 and 7 exhaust flow numbers Heat transfer port plugged at intake.1 - 51.2.2 - 99.2.3 - 131.4.4 - 128.5 - 129.8.6 - 128.7 ... That looks to be the flow numbers for a GT40X head with the 1.94 intake valves. Improvement came with minute changes in port shape. (Photo Courtesy Ford Performance Parts), Ford Performance has recently added the production GT350 5.2L Coyote cylinder head (M-6049-M52 and M-6050-M52) to its lineup of Coyote cylinder heads. It has all the bells and whistles and even gives us information that we didn't even ask for. Port size on small-block Fords has … [Click here to read more...], It’s good to have a source to guide you when you’re struggling with troublesome transmission function. If you’re going to run the more aggressive 2015–2016 camshafts on 2011–2014 cylinder heads, you must use the 2015–2016 timing chains, sprockets, and cam phasers. Actually, they look like the numbers for the GT40Y heads. Be sure your harmonic balancer has its timing marks properly indexed. As engineers massaged intake ports they found that conventional port logic didn’t always net them improvement. If you liked this article you will LOVE the full book. Real power comes from engine tuning once you have the 5.2L together. 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.

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