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. Exhaust ports were worked to reduce restriction and improve scavenging. Having exhausted the basic bolt-ons, you might think we would be done with the Coyote, but youd be wrong. MMR CNC Ported Coyote cylinder heads for 2011-2014 5.0 After that, it will be time to upgrade the short-block with forged internals. These are the Ultimate 5.0L Ti-VCT Cylinder Heads. Ford engineers worked day and night on intake and exhaust port shape with grueling dyno tests to determine how much they had gained. 2018 GEN 3 MUSTANG COYOTE 5.0L CYLINDER HEAD RH - Ford Motor Company The JPC Racing Stage 2 and Stage 3 CNC-ported heads have aftermarket oversized valves and upgraded valvesprings. Thanks, RGR/JPC CNC Stage 3 Coyote 5.0 Cylinder Heads - Justin's Performance Center, http://www.summitracing.com/parts/tea-lm4vfs-r/overview/make/ford. These engines used a 24x crankshaft trigger wheel and a cam sensor mounted at the rear of the camshaft. THESE HEADS ARE ON AN EXCHANGE PROGRAM. Corrected, we netted 630.6 horsepower and 479.8 lb-ft, giving us an overall corrected gain of 26.5 horsepower and loss of 5.4 lb-ft. so, much This has been achieved through six major revisions that have spanned eight years, to its current (only superseded by the latest generation GT500) Gen-3 Coyote architecture. whi. 2015 mustang Justin and his experienced staff bring many years of high-performance expertise to the table, along with several NMRA national championships. gen 3 coyote head flow numbers - zonen.ro M-6050-M50B Ford Performance Left Cylinder Head Ford Performance has a 1st Gen - 2nd Gen handbook on parts compatibility for the Voodoo/Coyote engines from 2011-2016. Two versions are available - 9.5:1 and 12.0:1 compression ratio. All rights reserved. Starting with the 2015 S550 Mustang, we saw a version of the 5.0 officially called the gen 2 Coyote. This engine featured a 9.51:1 compression ratio and a 1-5-4-8-3-7-2-6 firing order. full dyno results-stock vs cnc heads, stock vs boss intakes on both heads. Everything in the Coyotes cylinder heads had to be downsized to achieve a more petite cylinder head casting size. Variable cam timing (VCT) phaser bolts are new for 20152016 and must be matched to the 20152016 VCT solenoids. Power wise id like to be in the 500whp range on 93oct and maybe 520ish on e85, mid 10s with a higher 120's trap speed would be what i would really be looking for. 2018 GEN 3 MUSTANG COYOTE 5.0L CYLINDER HEAD RH Buy Now. What would be best for an all out n/a build? 2003-08 Mopar Gen. III 5.7L Hemi Engine Guide: Bore & Stroke, Cylinder The result is an exceptional Coyote head casting you can buy from Ford Performance Racing Parts. Below are the differences between the 5.2 GT500 Predator engine compared to the 5.2L GT350 Voodoo engine. The as-cast port dimensions (170cc intake and 66cc exhaust) compared very favorably to the stock E7TE 5.0L head castings. The Stage 1 heads supplied by JPC and RGR featured full CNC porting. You cannot interchange 20112014 and 20152016 timing components. MMR Starts with brand new cores (not used) and the magic begins. ,
Hemi Eagle head flow chart Article - RAM FORUM We received a brand new set of Gen-3 Coyote heads (P/N: M-6049-M50B and M-6050-M50B). 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). In 1995 Mark started photographing drag races at his once local track, Bradenton Motorsports Park. Sorry, flat-plane cranks are not expected from Ford Performance anytime soon. Cylinder Head. After the installation of the CNC-ported heads from JPC, the peak numbers jumped to 545 hp and 475 lb-ft of torque. Gen 3 crate Coyote. You can copy and paste this link to share: https://www.diyford.com/ford-coyote-engine-cylinder-head-performance-guide/. Looks like ill go with a ported coyote head then. 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. 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). Powered by BigCommerce
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. gen 3 coyote head flow numbers - funding-group.com SHARE THIS ARTICLE: Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. MMR stage 1 heads outflow th Valve angle had to change to improve valve to piston clearances and flow. On top is the 20152016 head gasket with a revised VCV oil galley passage (arrow), which is larger. Who makes big lift cams for these motors? Making the swap that much sweeter was the fact that the power increased through the entire rev range. Then you might be pretty excited about this ultimate 7.3L pushrod engine called the "Godzilla"! The BOSS heads ported outflowed the GT heads ported by over 11 cfm on the intake side when flowed at 28" and .550 lift. They are also blueprint, meaning all seat depths are equal from valve to valve and head to head. He became hooked and shot virtually every series at the track until 2007 until he moved to California and began working as a writer for Power Automedia. M-6049-M50B Ford Performance Right Cylinder Head All of this new power was thanks to a new, sexy intake manifold stamped with Boss 302 directly on top with velocity stack-styled runners. This new Gen 3 5.0L features many improvements to increase power output 25 horsepower and 20 lb-ft of torque. I ordered a new 2022 F150 with the Gen 3 5.0L V8 and was wondering what experienced owners of these tend to use for oil and filters. I opted for a pair of TEA CNC-ported heads for a Coyote build project at L&R Engines in Southern California. 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. Whats The Reason Enthusiasts Cant Get, Quicksilvers Crate Engine Program: Past, Present, And The, PRI 2022: FuelTech Talks About The Tech Of The FT700, PRI 2022: Concept Performance Now Offers Aluminum LTR, PRI 2022: Wiseco And K1 Launch 7.3L Godzilla Rod/Piston, SEMA 2022: Hedman Shows First-Gen F-Body LT V8 Swap, SEMA 2022: Adult Legos Trick Tools Icengineworks Modeling, Full Factory Tour: How Edelbrock Makes Its Cast Aluminum, High-Performance Racing Fasteners: How ARP Fasteners Are, Ford vs Chevy Comparison Size, Weight, and HP Per, Video: How To Install COMP Cams LS Rocker Arm Trunion Upgrade, A New Diesel Piston That Increases Power And Reduces Emissions, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop Shop, Video: Watching A Mechanical Fuel Injector Spray In Slow Motion, Cool Your Engine With Proforms 1-2-3 Series Radiator Systems, A Guide To Ford V8 Engine Block Casting Numbers, 1952-1996, Chevrolet Performance Releases The Impressive L8T As A Crate Engine, A Guide To Mopar V8 Cylinder Head And Block Casting Numbers, Melling Offers New Timing Kits for Ford 4.6L and 5.4L SOHC Engines. Ford 5.0L Coyote Dyno Test: CAI & E85 Tune Makes - It's Worn Your IP: Each sensor is cam specific to prevent installation error. Frankenstein Engine Dynamics, LLC. Bottom is the 20112014 gasket with a pinhole-sized galley passage (arrow). Gen 3 Coyote Performance Numbers - thefactoryfiveforum.com 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. With 444 hp, at the time, this was Ford's most powerful naturally aspirated engine they had ever produced. Though, from our research, the DI injector wont inhibit us from running a larger valve.. For this specific program, they held a contest among a small group to come up with a name. Also included are either tool steel or titanium retainers, seats, valve seals, and locks. Our concerns were quickly put to rest. Click to reveal These 5.0L Coyote engines produced lower emissions, better economy, more power, and less vibration than the old pushrod 302 5.0L engines. Website content, text, & images Copyright 2023 LMR.com - All Rights Reserved. Look forward to hearing from you! With 0-60 times coming in at 4.3 seconds, one 0.2 seconds behind the 5.4L Supercharged Shelby! It reminds me of a motorcycle valvetrain because it is so small. Build Thread FOLLOW:
Off came the cam covers, damper, and front cover to allow access to the cam sprockets and timing chains. Livernois Motorsports Gen 3 Coyote Stage 3 Cylinder Heads We decided to move forward, but this time, with the stock mechanical water pump and alternator robbing power. (Left)The exhaust port is raised up slightly on a Gen-3 head, so the exit path is slightly different. Roush is a registered trademark of Roush Enterprises Inc. Eaton is a trademark of the Eaton Corporation. Gen 3 Coyote 5.0L engine - 2018-20 Mustang; 2018-20 F-150 Each new Coyote generation brought improvements in horsepower, torque, and even rpm capability. The action you just performed triggered the security solution. Expect to see in excess of 320 cfm intake and 220 cfm exhaust with these heads. You are using an out of date browser. 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). Every set of heads is ready to install directly out of the box. If you give me a little more information I would be glad to go over the best options for you sir! However, the 3.5L/3.7L four-valve combustion chamber technique was applied to the Coyote to some degree in terms of shape and valve placement. The Road Runner Boss 302 5.0L engine, GT350 VooDoo 5.2L engine, and GT500 supercharged Predator 5.2 engine remain some of the most powerful engines that Ford has ever produced. 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. Fords Coyote engine is a real alternative to all of those who perform LS swaps in their cars. This is also a CNC-machined intake port. Oh sure, you can spend a lot of time hand porting this head if you have a lot of time on your hands. Total Engine Airflow CNC machines the intake and exhaust ports along with the combustion chambers. It is understandable to expect big horsepower numbers from a four-valve motor, but what really impressed us was the torque production. by | Jun 10, 2022 | spider man: no way home mcu timeline | harmon killebrew autographed baseball value | Jun 10, 2022 | spider man: no way home mcu timeline | harmon killebrew autographed baseball value TEA also stocks parts from all the leading valvetrain manufacturers and can supply countless variations of valvesprings, retainers, and valve materials. Ford Performance expects to have a complete 5.2L Coyote crate available by fall of 2016 that you can order with the cross-plane crank. 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. 185cc SBF Street Cylinder Head - Air Flow Research 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! While Im on the subject of cylinder head compatibility, also keep in mind that the 20152016 induction system is also different from 2011 to 2014 with ribbing that interferes with the 20112014 cylinder heads extended intake port flange. This engine is no longer the focus of ridicule like some of the 90s engines found in the Mustang. The best place to go for anything Mustang related! 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. . Exhaust flow with a 1 3/4 inch pipe and standard comp. Ford Performance Parts Gen 2 Coyote Cylinder Heads M-6049-M52X The 6.1L Hemi intake port flows 299 CFM at .500" and a maximum of 306 CFM at .650". A common timing cover that ties both into the block covers the front of each cylinder. Gen Gen 1 Gen 2 Gen 3 GT350 GT500 Quantity Add to Cart Frankenstein Engine Dynamics in association with Coyote Direct brings you the best cylinder head porting program for the Gen 1, Gen 2, Gen 3 Coyote and the GT350/GT500. Well i was planning on doing just a cam swap but now with the stripped header bolt hole i am planning on having the heads ported while they are off. gen 3 coyote head flow numbers why did blamire leave summer? (Photo Courtesy Ford Performance Parts. A new composite intake manifold uses taller ports, a larger plenum, and an 87mm throttle body. Using the stock retainers and keepers, the new springs offered 80 pounds of seat pressure and 200 pounds of open pressure. Legal 03/04/2020. A record year for power generation, after 14 Years of Stagnation. Weve seen this engine swapped into BMWs and even Scion FR-S! Everything You Wanted to Know About Gen III Hemi Engines JavaScript is disabled. Improvement came with minute changes in port shape. Improving The Best: Testing MPR-Built Gen-3 Coyote Cylinder Heads Coyote V8 5.0L Engine - Haltech Support Center This version of the Coyote engine would rev past 7,000 RPM with ease and produced 444 horsepower! The Third Generation Mustang Coyote Engine Most Popular in Mustang Engine Parts (53) MP Concepts V-Style Rear Spoiler; Gloss Black (15-23 Mustang Fastback) $164.99 (26) Form Lighting LED Tail Lights; Black Housing; Smoked Lens (15-23 Mustang) $499.00 (155) Valve Stem-Mounted TPMS Sensor with Rubber Valve (15-23 Mustang) $32.99 (447) This creates interference issues with the 20112012 intake manifold because of its extensive ribbing. 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. With CNC-ported heads in place, we installed the Comp cams, lined up and installed the timing chains, and buttoned up the front and valve covers. You can email the site owner to let them know you were blocked. Exhaust ports on the TEA Coyote CNC-ported head are hand worked after all CNC machining has ended. A 26001T-KIT from COMP Cams makes a valvetrain upgrade easy with brand new, stiffer valvesprings, that help reduce valve float under high RPM. What counts is what you get at the crank and rear wheels. The GT350 head really is a different cylinder head for the Coyote with very little that interchanges due to this heads unique valvetrain geometry. (Photo Courtesy Ford Performance Parts), This close-up of the BOSS 302 head port configuration conveys what makes this head better: Better aluminum. Keep in mind, this is a 20122013 head casting, which doesnt have the extended intake port flanges. In 2003, the 345-inch 5.7 Hemi received the first, followed in 2005 by the 6.1 hemi design. Even if someone doesnt want to do a port job, we at least recommend that they do bronze guides, new valves, and a valve job if they plan to make a lot of power, says Eichhorn. 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. (Photo Courtesy Ford Performance Parts). AFR heads are available bare (without parts), call our tech line for details. Some enthusiasts may be intimidated by the DOHC layout that includes variable cam timing, but the reality is that swapping the heads wasnt terribly difficult. i wish someone would publish a complete listing of casting numbers for the gen 3 hemi years 2003-2008, the years before the eagle head. Foyt had a four-valve V8 back in 69 and was the 1st Ford 4 valve ever made. The S650 Mustang carries over the 10-speed 10R80 transmission, but the Dark Horse manual transmission gets the improved Tremec 3160 transmission. After 2009, the 5.7 Hemi Eagle and 6.4 Hemi . What resulted were the left-hand M-6050-M50BR (driver) and right-hand M-6049-M50BR (passenger) heads. gen 3 coyote head flow numbers. This Coyote offered the best BMEP number weve ever tested on a street motor on pump gas. Designed for high rpm, the Boss lost power compared to the stock intake up to 6,500 rpm, but where the stock intake fell off, the power curve offered by the Boss kept climbing, right up to 7,500 rpm. Most of the machining time, though, is spent on the valve job machine. Ported Coyote Heads Dyno Test - Killer Coyote Cardio - MotorTrend Part #1422 & 1492 are street legal in 50 states for 1995 and older emissions controlled vehicles under CARB EO #D-250-3. While it did borrow the same displacement as the Voodoo engine mentioned above, it did not bring over the flat-plane crank. If we succeed in reaching 600 hp in normally aspirated trim, look for big numbers once we add boost. (Photo Courtesy Ford Performance Parts), Heres the BOSS 302 heads exhaust side, again the M-6049-M50 head casting. Stock GT heads can flow better after ported. The Third Generation Mustang Coyote Engine - AmericanMuscle.com A common question among the Mustang community is "What is different about the Coyote Mustang engines through out the years?" Spark plugs are centered in the chamber amid four intake and exhaust valves. 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. engine. If you opt for 20152016 cylinder heads, be prepared to go the entire way with the complete timing chain and phaser package. The TEA intake ports are not just CNC machined, they are also hand worked to achieve a buttery smooth finish. husband sarah gadon; difference between federal government and unitary government brainly; echo provider payments login; great skate birthday coupon; The Coyote four-valve cylinder head is one of the most advanced production Ford cylinder heads ever produced. -State of the Art CNC Head Porting -Valve Job -Pac Springs -Pac Ti Retainers **Must Ship your heads** Tweet You may also like It sports plenty of thick aluminum stock where it counts, at the deck and around the valves. The Gen 4 Coyote has the following improvements over the Gen 3 Coyote engine: At this time, the predator engine is currently the apex version of the Coyote-based motors. For those on a budget, any transmission from 1996 to current will technically bolt up to the Coyote engine, but it is strongly recommended to upgrade to the aforementioned T-56 6-speed or the TKO600 for manual options. Slawko Racing Heads says these are the same CNC-ported Coyote heads used by Justin Cyrnek in his 2013 Mustang GT racecar. "Flow numbers are just one variable used for various equations to analyze port characteristics in a very complex system. As Cast-Still Fast: Twisted Wedge Head Test - Street Muscle It makes some serious horsepower, thanks to a 5.2L cross-plane crank and supercharger setup. They are capable of handling upwards of 40lbs of boost and 9000 RPM. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Cylinder Head Tech: Airflow vs Power - Street Muscle Not a terrible difference but notable nonetheless! Just trying to wrap my head around the new ones. Was wondering if anyone had any info on which heads would be better for an NA build. The Coyote heads development and execution was a remarkable turn of events for Ford because it had never been done. -Strength wise the Gen3 block is probably slightly better as it has longer 12mm head bolts vs the Gen2 11mm but has a more open deck. The 5.0L Coyote V-8 continued to make impressive numbers, increasing 8 horsepower to 420 while keeping the same 390 pound-feet of torque as the previous 2011-2012 Mustang GT model. gen 3 coyote head flow numbersmarc d'amelio house address. Ford Performance Mustang GT GEN 3 Coyote 5.0L Cylinder Head RH - Steeda Contact Frankenstein Engine Dynamics Gen III Hemi Black Hawk Cylinder Heads SBC Eliminator - 23 Cylinder Head SBF Renegade - 20 Cylinder Head LS1 Mongoose - 15 Cylinder Head LS3 Mongoose - 12 Cylinder Head BBF Bullitt - 14 Cylinder Head BBC Magnum - 24 Cylinder Head BBC Magnum - 18 Cylinder Head 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. Charge Motion changes intake manifold runner length via flapper valves in the intake manifold. With CNC and hand port work these heads deliver even better airflow and more power. Palm Beach Dyno provided remote tuning services utilizing our HP Tuners MPVI2 dongle. Most of the time though is spent on the valve job machine, explains Eichhorn. He came up with Coyote because it originated with A.J. Livernois has some great ports for Coyote heads. Now for the automatic guys, the 4r70w that is built to withstand the higher horsepower or even the 6r80 from 2015 to current Mustangs will be great options to put behind this impressive engine! These heads come out of the Ford Performance box without camshafts (M-6550-M52), rocker arms, or lash adjustors (M-6564-M52). Slawko Racing Heads is another source for CNC-ported Coyote cylinder heads that contributes a strong racing background and a wealth of experience. Truck won't get here for minimum 12 weeks so Im using that time to prepare accordingly. On all of Fords engine programs, they use code names because they want to keep everything under wraps in case there is a leak from any part of the company. More power is good but more power everywhere is even better. Sold 09/07/2020. Filed Under: Ford Coyote Engines, Ford Tech Tips, 2023 DiY Ford. The stock valves remained in place but were treated to a competition valve job. If the Gen-3 head didnt have the direct injection and would fit on a Gen-1 or -2, it would really be the head to have. The engine increased displacement, all-new heads, and higher-lift cams contributed to the massive power increase. 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. Romeo-style camshaft journal girdles were abandoned for Windsor-style camshaft journal towers. Build Thread and Video Build 5: 35 Hot Rod Truck #138. Put into perspective, most street motors have BMEP numbers in the low-to-mid 170s with very powerful (high-compression) combinations touching 200. The TFS heads generated peak flow numbers of 250 cfm (intake) and 193 cfm (exhaust). They have a ton of valve area, and over 100% volumetric efficiency stock. 435 cfm. Trick Flow Specialties is a leading designer and manufacturer of high performance cylinder heads, intake manifolds, and engine components. 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. 404 | NMRA Digital . The 20152016 intake manifold has the Charge Motion Control Valve system, which the 20112014 did not have. The Gen 1 set the stage for all Coyote-based engines to follow 412 horsepower and 390 pound-feet of torque. Gen 1/2/3 5.0l Coyote Cnc Cylinder Head Porting These spring rates may not seem like much compared to race hardware for a traditional small-block, but remember, the Coyote sported four small valves compared to a pair of larger (and heavier) valves in the conventional small block. The Boss 302 modular engine was code-named "Road Runner" by the Boss development team, giving this engine a special designation over the normal Coyote engine. When a casting emerged from the Windsor foundry, CNC machines went to work to massage the unique BOSS casting which, to the naked eye, isnt much different from the standard Coyote head. These changes include the following improvements and changes over the gen 1 Coyote variants. (Right) Here you can see MPR ported and polished intake ports. This is the 20122013 BOSS 302 cylinder head casting, M-6050-M50 and M-6049-M50 (shown), which really is a different casting of an improved 356 aluminum alloy (versus 319 with base Coyote heads) with CNC-machined ports and chambers. In this article, we will touch on What Makes The F150 Coyote Engine Different. anshimo.sanita.veneto.it; Views: 18438: Published:-1.06.2022: Author: anshimo.sanita.veneto.it: Search: table of content. Gen III/Gen IV LS Engine: Specs, dimensions, and Engine History - Holley We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Rough surfaces are gone. Everything I've seen puts in the high 290s low 300s. When the Coyote was introduced in 2011, the media said that these heads actually outflow the Yates D3 small-block casting, which is a race head. Although the Coyote cylinder head appears to be a derivative of the Shelby GT500 head, it isnt. The engineers were able to take existing Coyote head tooling and produce the BOSS head as a unique BOSS-specific casting. Cylinder Heads - Air Flow Research The 2.18" valve listed above has 2.05 sq in flow area at the same lift. MKIV, IRS/TruTrack/3.55s, Coyote, TKO600, Wilwoods. Budget permitting, you can build a complete Ford Performance 5.2L Coyote to create a completely compatible mill. 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. Cylinder Heads: The 2015-16 Coyote (Gen 2) cylinder heads have improved ports and larger valves - and flow as good as the 2012-2013 Boss 302 CNC ported heads. (Photo Courtesy Ford Performance Parts). Stock compression with stock shortblock, billet oil pump gears, comp cam stage 3's, cj manifold, e85. Gen 3/4 LS. Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. 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. Under the Valve Covers of Dart's New LS7-Style PRO1 Cylinder Heads Dart's new line of LS7-compatible PRO1 heads package serious air flow with plenty of. Remaining inventories of new BOSS heads as well as used show up at swap meets and parts houses. I agree they are very nice engines. Email address