For a better experience, please enable JavaScript in your browser before proceeding. Stroke that thing. They are also cast with combustion pulled heads out of box, one head was in very nice shape, ready for service. [] Heres a close up of the head Marvin is using on our 351C build. These heads are screaming on the 302 I just built and are great quality. good luck with that. Edelbrock Performer RPM Cylinder Heads - Ford 351C Custom Camshafts, Valvetrain, Valve Springs, Push Rods, Timing Sets www.flowtechinduction.com "Generations above them were never perfect. It was what the SCCA mandated for street homologation. Won't work with the 289 stroke. edelbrocks were my first finned aluminum heads for a flathead25 years agoand they were o. k. for a 239 or a 255, due to small combustion chambers. Production casting part numbers: $ 5,595.00 Learn More. I believe C.J. This made-in-the-USA head is Edelbrock's value leader. FORD 5.0L/302 Cylinder Heads. That's what the TFS Twisted Wedge heads did here. For the testing, Holdener put together a non-numbers matching replica of the DZ 302. Because the BOSS 302s heads sported monster-sized intake ports, these engines had a high-revving demeanor with peak torque and horsepower coming in around 7,000 rpm instead of the Tunnel Ports outrageous nine grand. The Boss 302 and 351C-4V head casting are the same except for a minor difference in water passages. These aluminum heads are assembled with the perfect match of components for outstanding, trouble-free performance. 010 runout and wouldnt come out of the head without a lot of force (we never took it out). Up top, are a set of Ford Motorsports C302 cylinder heads, which have been worked over by Roush-Yates Racing. These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. The wide and large port heads with staggered valve placement give the 302 H.O. OK, you can do pretty well on a budget. 2/22 . Sizemore, formerly of Preperation H fame, did considerable valvetrain developement and terrorized the former checvvy stronghold of I and J/Gas. The factory 780cfm carburetors are really, really expensive, and we didnt want to spend a few thousand dollars on a carburetor, explains Holdener. Outperform many more expensive parts. You MUST flycut the valve reliefs on the pistons larger if using stock pistons. IF YOU DO THIS BE SURE TO USE PERMATEX #2 ON THE INTAKE STUDS. Batten of Romulus, Mich who did the furnance-blazed heads. These were available in stock and have the right size intake valves so I grabbed them instead. Original aluminum Boss 302 valve cover brackets for the spark . The Ford Racing X307 head is not the casting that comes on the Boss 302 crate engine, but its affordable price made it a natural choice for this test. There are plenty of them lying around used and new-old-stock. Jeff Speegle Come see us @ ConcoursMustang.com MCA Shelby Judge, SAAC & Team Shelby Judge (in no particular order . Best for 302-351 cubic inch engines. Assembled. Very limited suppliers of flathead parts always look to speedway for my hotrod items. Even the stock cam should peek higher than 5500 rpm. As fitted to the Boss, the heads feature steel spring seats, screw-in rocker studs, pushrod guide plates, and adjustable rocker arms. This is the 2012-2013 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. Marvin Shaw built us some nice HP heads for our later 1989 Super Stock Mustang driven by Charlie Ford who set 1/8th mile record under 6 seconds in 89/90 . I simply cant believe this is all youve got. . Boss 302. The power numbers are so close that if we had tested these heads in a typical street car, it's doubtful we would have seen much of a difference in performance among the middle four heads. I was going to have my reconnecting rods reconditioned with 5/16 arp bolts. I have not been able to specifically identify because the stamp on corner does not mach up with what it should be. 1.290 in Spring. Bought these and compared to the other (PC). Cylinder Head. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The TFS head looks much stronger than the Edelbrock version above 5,500 rpm, but the maximum differential is only 13 hp at 5,900 rpm. Inline and < 15* valve angle such as World Products Man O' War 10* heads promote very good performance. The BOSS 302 heads are known as "Cleveland style" heads as they are based on the head designed for the 351 Cleveland engine. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The Edelbrock 351C head shows a controlled "swirl ramp" that comes on lightly at 100 RPMs starting at .450" lift and increases steadily to 2000 RPMs at .600" lift. The cylinder head is bolted to the engine block and sits above the pistons. The modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through your engine for improve efficiency. 300 HP wouldn't be far off. It should be in the product description and specs. Single angle amateur valve job and it was pretty sad looking At this point I called edelbrock and they gave me the song and dance so I called Jegs and they issued a return. Perfect fitment, good quality heads on a budget! you could also get a 302 crank and rods with custom pistons, a 302 crank with 289 length con rods and off the shelf b2 pistons. it still has the vista 7 sticker on the palm rest area. saving. The RHS headsproduced the next-closest average horsepower and torque, with the Edelbrock and Ford heads very close behind. Bored out 70-thousandths to 310 cubic inches and with a laundry list of. I am presently installing a 302 clevor into a 83 mustang GT. very poorly packaged, opened it and there was no screen protection sheet between screen and keyboard. Just A Taste 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 and linking to Amazon.com. i knew a guy that put a set on his 65 shelby. Typing on the key kaed is cumbersome. searching. I have tried most all of it and now do what is known to work.. Well, this may be old info, since the warning tells me that the last post for this discussion occurred >100 days ago. but thesell work on a large engine and flow, too. High-Quality Details With the Edelbrock part #7129 Performer RPM E-Boss 302 intake manifold, you can build a mock Boss engine by using a standard 302 block and Edelbrock Performer RPM Cleveland cylinder heads #61699. The cam featured 290 degrees duration and .477 in (12.1 mm) of lift. Next, we test a low-rpm cam and a high-rpm cam in the same engine to demonstrate the power differences. What? I had 90 runs on an original Boss 302 in a 70 Mustang. For use only with Special heads . That made for an incredibly close series of tests, which proved that regardless of how you get your displacement, similar displacement engines will make similar power and respond similarly to modifications. The darned thing was rabid dog fast. 154-3607: SB Ford 289-302 standard 12pt Head Bolt Kit. The Edelbrock Flathead Cylinder Head is made of A356 aluminum T-6 tempered cylinder head. Hate to tell you this but a BOSS 302 has Cleveland type heads. No mention of those holes in the instructions. Enter Fords development of an all-new 351ci engine with poly-angle valve heads and tight-fisted wedge heads destined for a 1970 introduction. Edelbrock 5025: Cylinder Heads, E-Street, Aluminum, Assembled, 60cc Chamber, 170cc Intake Runner, Ford, 289, 302, 351W, Pair Are you looking for a set of entry-level street performance heads for your modern street rod, muscle car, or truck? The 1968 Trans Am season was a disaster. It was 351C heads, 3 of them, cut up into 6 pieces, then furnanced blazed. The 300 block may have a slightly taller deck height than the 240. Because of the pent-roof design of the heads, the Boss also had forged pop-up pistons to achieve the desired 10.5:1 compression ratio. Any who, this is a work laptop, and it started out pretty fast, but over time, it eventually slowed down. As with our small-block Chevy head test, we will evaluate each of these small-block Ford cylinder heads using several different categories in addition to peak torque and horsepower. 02 intake/1. . And torque is what gets the car moving from a stop, pushing you back in the seat. It was honestly a guess on my part and the Tech had no additional information or opinion to offer. I think it was based on the Cleveland design. The Boss 302 takes the Mustang GT's suspension and adds higher-rate coil springs, stiffer bushings, and a larger diameter rear stabilizer bar. Though that's significant, this is only reflective of a single point in the curve; it is more important to evaluate the entire length of this horsepower graph. 4V. A factory high-rise dual-plane intake manifold was used, with one part not period-correct. The advantage was better flow because the intake was on one side and the exhaust was on the other. Thx. 58 cc Chamber. These heads use the same valves, valve springs, retainers, and 7/16 in. The push-rods needed to be extended using a 2-piece design w/a small aluminum sleeve (that slides in the block) to join the 2 pushrods. He used a correct Duntov camshaft and set the lash a little tighter than the original spec, at .020-inch. Its main function is to seal the combustion chamber and provide a surface for the intake and exhaust valves. Classes? 2. 125 of gap at the front and rear ends and you are running a blower or a turbo then I would suggest making some spacers to take up the gap on the ends because anything over. Ive had several other brands, but HP has been the best. When you do that, you can see that the TFS head did substantially better than all the other heads above about 4,400 rpm. I am through with their products. 1970 Intake - 2.19 inches Exhaust - 1.72 inches. Put on a 351w in a 1979 Tbird. This provided more room for larger valves instead of the standard side-by-side arrangement. I personally know several guys with Boss 302s that have been secretly stroked to 347. Finding a Street Boss intake likely wouldn't be too difficult as multiple manufacturers have cranked them out over the years. 1.90/1.60 in Valves. 8:1 compression, TFS Stage 1 hydraulic roller cam, 1 5/8 headers, Summit Stage 1 dual plane intake, Edelbrock 650 AVS carb. Greg has spent eighteen years and counting in automotive publishing, with most of his work having a very technical focus. and if you want to use a high-lift cam or supercharger; thats no problem, either. First of all. However, in the upper RPM range, the Boss 302 shows a definite, significant advantage over the DZ 302. Its biggest weakness may be the price. Weve got 302 fords with gt40 3 bar heads making over 500 hp. You will need the boss piston to go with the canted valves.. No. Always interested in how things work, he enjoys sharing his passion for automotive technology with the reader. While the DZ 302 had a stronger midrange than the Boss 302, in stock form, the Boss reigns supreme in the higher RPM range. I used them with a Comp Cams 274XE cam and a QFT 600cfm carb. Combining with an iron block and aluminum heads, the 4.0L SOHC V6, made a substantial amount of more power than its predecessor, producing 210 horsepower at 5,250 RPM and 240 lb/ft of torque at 3,250 RPM. 3/1 . I personally dont think a prospective buyer should have to learn about this issue by reading reviews. writing. Before jumping right into the dyno numbers, we need to look at the engines backgrounds to truly understand why they were built, and why they are so equal. Today's small-block Ford street engine builder has it easy. For use on pre-pollution controlled vehicles only. Still have lots of racing Boss and Hipo parts. 2.02/1.60 in Valves. Cylinder Head 190cc Assembled. Im looking to build an engine that produces 300ish hp. Does anyone remember the six cylinder heads they made for Bruce Sizemore. For a better experience, please enable JavaScript in your browser before proceeding. As you can see from these numbers, the Cleveland-style Boss 302 cylinder heads offer significantly more airflow at each valve opening point over the DZ 302's fuelie heads. A guy near here used the advice on the link below, starting with a 67 289 2V engine. Ford Racing's Z heads (PN M-6049-Z304DA, 63cc chamber, 2.02-inch intake valve, $1,695) are the next step in bolt-on performance castings for small-block Ford engines that see street and on-track . Small Block Ford. 8l F250hd efi roller engine? If we've muddied the waters a bit, it's only the result delivering more information on the way to a decision. The 300 and the 240 are identical blocks,the heads are different and the 240 is basically a destroked 300 so it will rev a little higher. The Mustang 5.0L Coyote engine has evolved into the Boss 302, VooDoo 5.2L, and the Predator 5.2L. Expensive mistake. Edelbrock 5093: Cylinder Heads, E-Street, Aluminum, Assembled, 84cc Chamber, 210cc Intake Runner, Mopar, Big Block, Pair Are you looking for a set of entry-level street performance heads for your modern street rod, muscle car, or truck? It is now becoming sluggish, and I get LBSOD issues frequently because of the wifi. . It was rated at 10.5:1 compression and 230 bhp (Shelby was rated at 250). For what the (complete) Boss heads and a intake will run seems you would be better off just going with a good set of after market heads. [IMG]http://home.pacbell.net/kketell/USAFlag2.gif[/IMG][IMG]http://a8.cpimg.com/image/56/2C/8548438-4e05-00C8003F-.jpg[/IMG]. . The stroke difference between the two engines amounted . They'll work but have you got the Boss heads? So now, we have a pair of legends, being compared on the dyno. Ports 2.38" x 1.68" C9ZZ-9424-C. C9ZE-9425-A . The block is a 1980 302 Winsor. TRW developed these pistons and suppled Ford with them for both racing and production engines. Junk ass Chevrolet stroker engines.puleeeeeze. These new aluminum hemi heads will bolt directly to any small-block Ford from a 289/302 all the way up to 351W as well as Cleveland engines. "Basically, the DZ 302 shared all the specs with the previous 365-horsepower 327, with the fuelie heads, the Duntov cam, an aluminum intake, and Holley carb. So the induction system is kind of a toss-up. Ford brought back the iconic 5.0L in the 2011 Mustang. 1 on Pg 2 instructs the used to drill 3 holes if a 400 block is used. I was trying to find a set of heads that will produce 300ish hp. loading. Other than this the heads flow nicely on the street. The BOSS 302 heads used some of the biggest valves in the industry. I think the higher RPM one had larger valvesand ports, right? Ever wonder what those camshaft specification numbers really mean and how they affect engine performance? Having a hard time finding Boss 302 Heads online? They cut the center two chambers from three Boss 302 heads then welded them together to form an inline six head that bolted on a 300 block! Compatible with Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc Angled Plug Aluminum Bare Cylinder Head $238.88 $ 238 . Comparing the cylinder heads on paper, using data collected by Holdener for a previous article, the Boss heads clearly come out ahead. For a better experience, please enable JavaScript in your browser before proceeding. Just my thought. Rugged, ribbed internally and externally, with a large water capacity and excellent breathing characteristics. I wanted to built a great runing, mild street motor around a stock sbf 302 short block. The brute 427 FE Series big block that won Le Mans also reigned supreme in limited production 1964 Thunderbolt Fairlanes in NHRA competition. When I set the carb I get a bouncing vacum needle at idle, Ive been told thats a sign of a sticking valve. When we tore apart the first head it was full of shavings and one of intake valves was super tight and one of the exhaust valves was bent w/. 88 DNA Motoring LEPOW-038 Aluminum Bare Angled Cylinder Head [For Chevy SBC 302/327/350/383/400] 3 1/23 . The BOSS 302 Registry is not affiliated with the Ford Motor Company. These features improve an engines efficiency, resulting in more horsepower and torque and improved mileage potential. . The additional space improved the engine's breathing. My first work Dell was super slow and sluggish, so I was sent a new one. But it should be noted that Ak Miller built a '67 Mustang at about the same year and created a 300 out of a 240 ( for the younger ones a 300 used to be a truck engine and the smaller 240 was used in the cars,LOL) with a set of Webers and bigger valves and cam, it turned in the twelves, that's in the late 60s. The best aluminum heads for 302, without a doubt, have an effect on the vehicle's RPM. They are rugged and ribbed internally and externally for more strength. By doing the heads himself (he'd never tried it before), and using a 289HP air cleaner, 600 cfm carb, Edelbrock Performer RPM intake, stock distributor tuned to BOSS 302 specs, and a C9OZ-6250-C hydraulic cam, turned 323.5 hp @5300 rpm. For those who consider swirl a detriment to producing power this is a positive thing. SB Ford WP Man O'War iron block/Man O'War aluminum head Head Bolt Kit. 546hp @5600 rpm also had 630 ft-lbs torq@ 4400 rpm. BluePrint Engines HP9009: Cylinder Head, Assembled, Aluminum, 60cc Combustion Chamber, Square Port, Ford, 289, 302, 351, Stud Mount, Each Welcome to a new class of high performance cylinder headsBluePrint Muscle Series! crank, offset-grinding it to a smaller crankpin diam. Heads are sold individually. After a couple of good seasons of running competitively with the big blocks a couple of guys showed up with a custom head that consisted of two V-8 Ford heads that had a combustion chamber removed from each end and were furnace bronzed together in the middle. instead of 50 oz. I figured the Boss would make peak power. It's important to note that this was the only head in our test that required its own separate valvetrain. Peak power was good, at 349 hp, and torque is also reasonable. Fits factory 1979 - 1995 Mustang oil pan with custom oil pickup tube, part number: M-6622-BOSS302 NASCAR inspired front oil feed on both lifter galleys. Both 1969 and 1970 302 BOSS engines will run great with a properly tuned 750 Holley. $1,692.99. They pull much harder through the midrange than the 351W heads they replaced on my 302 Ford. Luckily I had the tools to put them back on but this could have been a issue and made them not bolt on heads. Edlebrock is one of the few companies making great performance parts for small block Fords. Though I rated the overall part as good, the areas that really count are just average. . The odds of you building a vintage Ford BOSS 302 engine are slim because Ford built so few and so many are already spoken for. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I changed the thermostat so it would dump alittle more gas in her no problems so for. You wont find heads of this quality at a better price anywhere. sbf 302 aluminum cylinder heads. Speedway and Try-State Cylinder heads both stand behind this product. The BOSS 302 engine could use better cylinder heads with right-size port and valve sizing in a set of Trick Flow cylinder heads and a more compatible roller mechanical camshaft. Not only did the TFS heads produce the most peak power, they also logged the best average torque and horsepower. Generator stud kit for 1938-48, use #8506. Typically these are seen in three different versions as shown. They feature revised valve angles and locations to reduce cylinder wall shrouding and improve flow, along with redesigned combustion chambers to accommodate the more centrally located valves. Typical rebuild, headers, Competition solid lifter cam, 1.73 Crane roller rockers. Install the gaskets with the raised seal towards the head and it will fit the ports much better. However, it is generally agreed that aftermarket cylinder heads can provide significant performance gains, and that aluminum heads are often the best choice for racing applications. You will certainly feel that in the car. Great article is there a video available ? Like with standard 4V heads, you would have to machine the tops of the heads to accept screw-in, adjustable rocker studs. After the engine is warmed up to its proper operating temperature range, you must go back and reset all the valves to the proper "hot" valve lash settings. Recently, we posted an article in which Richard Holdener dyno tested the five-liter powerhouses put out by the Blue Oval and the General in the 1980s. Aluminum will allow you 1pt up in compression for its ability to shed heat. http://forums.vintage-mustang.com/vintage-mustang-forum/721154-1970-mach-1-h-code-build.html. The intake is off a 1965 Shellby. This one appeared great at first use and for a couple of months. I was actually pleasantly surprised at the swirl polished valves and the large spring pockets for if you want to run larger springs with a monster cam! So your wrong. 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 . Im not sure what has happened to Edelbrock, but their quality control sucks. If you used windsor heads its not a BOSS. You would need a Boss 302 manifold for the intake. Sure there's someone on here that could tell you what heads you have would be better but with the right (mild) cam, good intake, etc. So get comfortable, slip on your Ford-colored glasses, and hang on. Sizemore, formerly of Preperation H fame, did considerable valvetrain developement and terrorized the former checvvy stronghold of I and J/Gas. It didnt conform to corporate protocol and invented the muscle car in its 1964 GTO. This new design offers a 25-50 HP increase over current Cobra Jet heads, depending upon displacement and camshaft. If you're drag racing in a class where the weight of the car divided by the cubic inches determines what class you run in, it may be advantageous to drop the displacement a little if it will allow you to get into the faster side of a slower class. quick fuel 650 performer rpm intake these heads smallest trick flow cam. FORD and Mustang Cylinder Heads (6090) 5752143: 59 332 352 . The heads were to big for a 351CLEVELAND. Fits on Dodge ramcharger, monaco, w100 series, sierra, pioneer, d300 pickup, d100 series, custom. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. We'd love to test 'em all, but we decided to line up as many performance small-block Windsor Ford heads as we could find, as long as they were available complete for less than $1,350 for the pair. The DZ 302 in the Z/28 was a natural marketplace competitor to the Boss 302 from Ford. reach with flat gasket seat. . Think of Ford as a free-spirited car company with a rich history, driven by ego, that took big risks much as it is doing today with electric vehicles. Since the Windsor block was already a thing, the Blue Oval team decided to fit a set of Cleveland style heads to the short-block and create the Boss 302. There is no flat spot and these engines will pull from 2000 against any rival including a Windsor. ), then the second-least-expensive headsthe Edelbrock E-Street headsreally begin to stand out. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. 9 intake valves since they bolt on easy with no modification necessary. BOSS Cars Nationals 2005 - BOSS Cars Reunited. Flashing in ports was unacceptable. Plus we used cam dial-in and it was only off a half degree. extreme amount of burrs left all around the rocker shaft mounting pads. The Fora platform includes forum software by XenForo. Locate Boss 302 Heads on sale below with the biggest variety of Boss 302 Heads anywhere online. The result was a powerful 290-horse factory screamer with peak street power coming in around 6,000 rpm. See it here: yes its ben done. When it comes to the valve events, Ford and Chevrolet took two different approaches. At RHP reasonably well ported (340+ / 200) set of iron heads with large S/S valves, manganese bronze guides, p/c seals, rocker studs and guideplates are $1,695 exchange. The real question is, what do these factory motors make, and how do they compare to each other?. This head is intended for a flat-tappet camshaft, so it was outfitted with a small-diameter spring that might have limited its performance in the midrange slightly. View Details. On episode 19 of Engine Masters, David Freiburger explains cam lift, duration, lobe separation angle, and installed centerline. Bob Perkins(WI) located it and restored it to original shape and build special plexiglass trailer for it to display. Im trying to leave this pretty much as is, until I get a few good drives in. Both had dual-plane high-rise intakes and big Holley carbs. It features a forged dome piston to bring compression up to the original 11.0:1 compression ratio with the 64cc 186 casting fuelie heads. Henry Ford II wasnt going to have it any other way. I have used them for over 35 years and never seen something like this. In the 1960s, Ford was an outspoken car company, much as Pontiac Division was within General Motors. stud-mounted roller rockers as the current Ford Racing 429 Cobra Jet heads, and the standard Cobra Jet intake and exhaust manifolds bolt right on. The product is a great entry level/cheap head though so 5 stars! No votes so far! Gurney Eagle : Gurney Eagle race heads : Application. This educational content is not intended to be a substitute for professional advice. Small Block Ford. E7 heads use 1.78 / 1.48 just like the 60s stuff. Raced and owned quite a few Boss 302s. 302 (may have been used on late 68 model year) 4V . My fault for not setting the intake on the engine to check my end gaps. All Edelbrock E-Street cylinder heads are assembled with manganese bronze valve guides, powder metal interlocking valve seats, and stainless steel one-piece valves with hardened valve tips. When the SCCA started the Trans-Am series. The cylinder head is an important component of the internal combustion engine in a Ford 302 car. Top Rated Seller Top Rated Seller. The .10 difference in bore spacing( but the bolt pattern is the same square four as the smallblock) makes me think 3. my signature linesnot really directed at anyone in particular.. Above you see a casting with a D1ZE part number. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Great velocity with these heads. Best heads for the price. Once I pick the heads I was going to find a good cam for daily driving/ performance.