high power capabilities. Original aluminum Boss 302 valve cover brackets for the spark . The runners are as cast and a bit rough. The Fora platform includes forum software by XenForo. ENGINE BLOCKS . I am running them on a 302 and purchased this set for a 351 build. 154-3701: SB Ford Boss 302 12pt Head Bolt Kit. Does any 351 Cleveland head fit it? 4V. 98 sold We certainly don't want to ignore the peak numbers, and that's where the TFS Twisted Wedge heads really earned the spotlight. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. Like with standard 4V heads, you would have to machine the tops of the heads to accept screw-in, adjustable rocker studs. I think it was based on the Cleveland design. While the DZ 302 had a stronger midrange than the Boss 302, in stock form, the Boss reigns supreme in the higher RPM range. With such great success under its seat belt, Ford decided to dabble with the 289 and stroked 302 to see what could be done to further its performance image. 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. Great article is there a video available ? Batten was at the top of their game then and were welding up and porting the best bow tie heads on the planet back then, besides all the othher stuff. Sign up for a free trial to MotorTrend+ today. I first installed an oil trap in the PVC thinking something went wrong with the piston rings. 2/22 . 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. It didnt conform to corporate protocol and invented the muscle car in its 1964 GTO. It's important to note that this was the only head in our test that required its own separate valvetrain. 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! Still have lots of racing Boss and Hipo parts. Jeff Speegle Come see us @ ConcoursMustang.com MCA Shelby Judge, SAAC & Team Shelby Judge (in no particular order . I figured the Boss would make peak power. The term refurbished was definitely stretched here: the screws are different colors from the black casing, the bottom rubber footers are looking like they have decayed so that the laptop wobbles, the side has a port that was left wide open with a broken/cracked piece and then when you try to open it, the screen side sticks to the keyboard side like it has a gummy residue of some sort on it. (BOSS) I assumed thats how they went and I also used the end seals. I believe C.J. What I got was good, but the quality control person should not have let these go out the way they are. Aluminum. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. I just got a block that is 289 .30 over and I wanted to reuse my pistons I think they are sealed power 7006p (obsolete now). Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! All in all, Im not a fan of this series from Dell. Exhausts have only a. Best for 302-351 cubic inch engines. All they had to do was make the piston dome bigger on the 302 to keep the same 11:1 compression ratio.. my signature linesnot really directed at anyone in particular.. The only caveat to all this is that the Twisted Wedge heads do limit valve lift (0.600 inch) and duration on stock pistons due to their repositioned intake valvejust so you know. The combustion chambers are filled with a 2.150-inch, 7mm-stem titanium intake valve, and a 1.60-inch, 7mm-stem titanium exhaust valve. 546hp @5600 rpm also had 630 ft-lbs torq@ 4400 rpm. The cam featured 290 degrees duration and .477 in (12.1 mm) of lift. BOSS Cars Nationals 2005 - BOSS Cars Reunited. 625-HP Ford 'Boss 300' Inline-Six Destroys V8s Without Forced Induction Ford Coyote Engine Cylinder Head Performance Guide Max effort class rule stuff runs over $2K. Luckily I had the tools to put them back on but this could have been a issue and made them not bolt on heads. If it is, then you know what you need to do. Sold individually. JavaScript is disabled. The Boss was topped off with an original aluminum. There is a lot he did to this engine, if you're interested but he kept the orig. Using the native mouse is awkward. THE NEXT ISSUE WAS VALVE SPRING INSTALL HEIGHT. Small Block Ford. The TFS heads appeared to be the big dog in the room when it came time for testing. Today, the aftermarket lineup of Ford cylinder heads has plenty of castings from which to choose. I HAD TO CHANGE OUT THE SPRINGS FOR ONES WITH MORE PRESSURE DUE TO VALVE FLOAT AND I AM ONLY RUNNING AN E303 CAM. Street Cruiser Cylinder Head. i drank a bottle of 10,000 rpm and thode a rod !!! Both 1969 and 1970 302 BOSS engines will run great with a properly tuned 750 Holley. The heads are Cleveland heads. Is the Ford 302 a Good Engine? - VehicleHistory The heads also required custom-length Comp Cams pushrods to compensate for the relocated valves. The DZ 302 in the Z/28 was a natural marketplace competitor to the Boss 302 from Ford. Bolt-On Hemispherical Heads for a Small-Block Ford - Street Muscle This minor tune-up would really improve the flow curve and add a measurable amount of torque. These are perfect for their intended use, the street. The less you know the more you need vacuum secondarys. Like we said, if best power or least price is your only concern, then the decision is easy. It had a description amd Alan Johnson Cylinder Heads listed as the vendor and contact #805-922-1202. But the springs they come with are for a hydraulic roller cam. I never did own a Boss 302, but I was around them when they were new.I have had lots of 351C. These lightweight aluminum heads bolt up to your small block Ford and feature 190cc intake/60cc exhaust runners, 60cc combustion chambers, and 2. 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. Our test heads came with the larger intakes that clearly contributed to these heads' strong showing. 015 AND THE REST WERE. 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. 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. These Ford cylinder heads all feature between 170cc and 180cc intake port volumes and offer excellent performance potential over even the best production iron 5.0-liter heads. However, way down low, where the big-port Boss 302 motor isnt supposed to work, it made decent low-speed torque. Fords great success with its powerful V8 engines is legendary. Would modifying the heads bring down the value of the heads? Production casting part numbers:
The Boss 302 had been built using a Windsor 302-cid engine, but then Cleveland heads had been added to the block due to their larger ports and valves. Better compression then stock, better breathing then stock. 302 Engine Specifications | Classic Cars - CarMemories.com No drilling is required since it appears they updated the manufacturing process to eliminate this need. The product is a great entry level/cheap head though so 5 stars! Tech-Sheet. Renegade Street. Generator stud kit for 1938-48; use #8506. The Boss used a mild camshaft, mild compression, and lots of head flow, Holdener says. These Ford heads tied with the Edelbrock heads for third place in average torque and were extremely close to the RHS head's second-place power level. 154-3607: SB Ford 289-302 standard 12pt Head Bolt Kit. At the time the first heads were done, I think only cast iron were available so they were furnaced brazed.If you sliced them, any shop that repairs heads could do the work. Small block Ford PRO1 20 170cc Aluminum cylinder heads feature high flowing as cast ports with profiled valve guide bosses and are bowl blended on 5-axis CNC machining centers. They had to combine a four-inch bore from a 327 block with the three-inch stroke from the 283, Holdener elaborates. Cylinder Head. Boss 302 blocks are used all the time for Windsor headed performance buildups! We started FORD Drag Club at Horn-Williams Ford in Dallas,Tx. We tried this formula to see what our basically stock BOSS 302 would do. Other than that it was OK. 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. Heads are sold individually. Because they didnt allow destroking [of an existing engine design] initially, both companies had to build actual displacements of five liters, explains Holdener. Edelbrock aluminum 2V cylinder heads with a mild camshaft upgrade top its stock Boss 302 block, while a Tremec TKO five-speed gearbox sits in place of the factory toploader four-speed. The 240 and 300 are basically the same engine -- based on the same block design anyway. the second head had not been full deburred from the milling process. But as others have mentioned there are modifications that must be done to make it work. The Mustang 5.0L Coyote Engine Gen 1, Gen 2 & Gen 3 differences are explained by Landan with LMR. We should stress that during testing we optimized each set of heads for timing and jetting and then ran the engine for two near identical runs, which were then averaged to come up with the final power numbers. For the testing, Holdener put together a non-numbers matching replica of the DZ 302. Its useful for when you have a tight engine compartment and headers in a Falcon. Crate Engine, 302 C.I.D. Raced and owned quite a few Boss 302s. Ah now Plummer - it's not a secret if you post it on VMF! The BOSS 302s biggest shortcoming is port sizing, which is something Ford has rarely been able to get right. Cross Boss 302 Mustang off highway use. Next, we test a low-rpm cam and a high-rpm cam in the same engine to demonstrate the power differences. The DZ 302 has a reputation for being a high-RPM screamer, and the camshaft is definitely part of that. 3/1 . 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. 1/23 . Whenever youre running a flat tappet cam, always use a zinc additive, Building Classic Ford 351 Cleveland Power. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. Sign up for a free trial to MotorTrend+ today and start watching every episode of Engine Masters, plus much more! SB Ford Aluminum - Bill Mitchell Products I really liked my 69 428 CJ. The TFS heads made an honest 380 hp, but what we found surprising was how well the Edelbrock E-Street head did, with a peak of 371, substantially better than Ford Racing's 362-hp third-place finish. Dells are ok computers. Assembled. All Rights Reserved. I'd have to look through some old books, but I think it took 3 heads to get 1, although it may have been 2. The Fora platform includes forum software by XenForo. They dropped off after that. TRW developed these pistons and suppled Ford with them for both racing and production engines. So, instead, they ran a simple 750cfm Holley carburetor, along with 1-3/4-inch dyno headers. 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. Chevy used higher compression and lots of camshaft, combined with mild cylinder heads. Pair. Above you see a casting with a D1ZE part number. The finishing order for peak torque realigned slightly, with TFS out front, RHS coming in a strong second, and Edelbrock and Ford tied for third. Perfect fitment, good quality heads on a budget! We came to the conclusion 4 were 2 close to the sparkplug bore and 2 were to close the the intake runners to be safe to use on the 5073 aluminum head. from United States. LOOKS AND PERFORMED GREAT. but thesell work on a large engine and flow, too. 6 Budget Small-Block Ford Cylinder Heads That Work - MotorTrend 1969 Ford Mustang Boss 302 | Hemmings To minimize the grief of doing the math yourself, we averaged the horsepower between 3,000 and 6,000 rpm, then divided that into the cost of a pair of heads. Ford brought back the iconic 5.0L in the 2011 Mustang. IF YOU DO THIS BE SURE TO USE PERMATEX #2 ON THE INTAKE STUDS. second time I have been disappointed with Edelbrock. THAT IS UNACCEPTABLE IN MY BOOK. The completed head is also wider so push-rod holes need to be cut-out on the block side, then sealed with "o" rings, etc. You'll notice that we attenuated the horsepower graph to include just the power curve between 4,000 and 6,200 rpm. GT40 heads use 1.84 intake / 1.54 exhaust. I simply cant believe this is all youve got. THe new heads will have the same bolt-pattern as the original 6. You might even be able to get some rejects since you'd be cutting them up and remaching anyway. This one appeared great at first use and for a couple of months. Currently I have a set of 1969 302 d0oe heads, and a set of 1965 289 heads, I heard both of those won't do it without spending a lot of money porting etcI was thinking of gt40 heads. That may or may not make your ultimate choice any easier, but if so, you can thank us later. Im looking for three Ford Cleveland 4V engines. Aluminum will allow you 1pt up in compression for its ability to shed heat. 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. Not the 2012-13 Coyote DOHC BOSS, but instead the genuine pushrod original from an era when Ford did the unthinkable repeatedlyand won! 154-3702: SB Ford 302W 12pt Head Bolt Kit. For use on pre-pollution controlled vehicles only. 302 (may have been used on late 68 model year) 4V . Ford's original Boss 302 engine was only produced for two years (1969 and 1970), but it was so cool it's understandable why the little V-8 has gained such an . I think Im in love, lol!!. Hardcore Boss 302 Restoration Tech! - MotorTrend D. Hearne is on the money as usual. So Im into changing springs, retainers, locators, etc. This includes 260, 289, 302, Boss 302, 351W and related variants. That means 305 maximum cubic inches. Purchased a long block on CL. NOS 1969 1970 Mustang Boss 302 speedometer. Ford 260-289-302 Firing Order; Ford 351C 351M 400M Firing Order; Ford FE Firing Order; Ford 429 and 460 Firing Order; Chevy SB and BB Firing Order; So it can already be made to haul. Alum. 60 cc Chamber. Hot Rodding's Engine Annual and it lays out an article on Bruce Sizemore's I-gas Pinto which reads "How to Build a 500 hp 6-cylinder Ford. detroit metro auto parts "302" - craigslist would love to return this old jalopy back!!!. Plus, they give you more power behind the wheel and in your wallet! Edelbrock E-Street cylinder heads are just the ticket. The winner in this evaluation is almost always the least-expensive head just because of the way the math formula works. Ford's legendary racebred Boss 302 engine remains one of the most significant high-performance power plants in the company's history. which will help take the wait off the rear main bearing. Experimental Boss 302 style heads . Fords incredible 1969-70 Trans Am BOSS 302. It will have screw-in core plugs and a four-bolt main block if it is a Boss 302. I think I have seen afrermarket heads but cannot rememmber where. Ford took on the world with the GT40 supercar. Bolts in anywhere a 302 will go with the right headers and pan. Not even close to what I thought I should be getting in a brand new set of heads. I SENT THEM RIGHT BACK. We got more than 450 HP on Fords dyno when we blew right rear tire and it took out Ford training board. Then Ill be looking for upgrades. Weve got 302 fords with gt40 3 bar heads making over 500 hp. Its all a win,win. The Ford had slightly less compression, at 10.5:1, so out of the gate, Chevy had a little bit of an advantage.. it will be a "high winder" and with a bullet proof bottom end and a 4 bolt block could run to 10,000 rpm b 4 exploading ! Same transmission, run a 351W flywheel/flexplate (same as a C). Very limited suppliers of flathead parts always look to speedway for my hotrod items. If I wasnt on a time crunch, I would have returned these heads. This is where you must spend the money. 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. Prices listed are from the story's original publish date, February 1, 2013. . FORD and Mustang Cylinder Heads (6090) - mustangtek.com I just got a block that is 289 .30 over and I wanted to reuse my pistons I think they are sealed power 7006p (obsolete now). Alum. I think that a race head is available through someone that is all aluminum. You are better off buying model 5023 with 1. Not true! 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. Click to expand. The BOSS 302 heads used some of the biggest valves in the industry. BOSS 302 ENGINE BLOCK| Part Details for M-6010-BOSS302 | Ford 030 AND 2 OF THEM WERE. Can you further help me with where to buy this? I have used them for over 35 years and never seen something like this. Valve stem heights all the same, decent springs, work fine for my rolller cam, good fit and finish. There was a guy named CJ Batten who would cut up 3 boss 302 heads and put them on a 300 IL6.The one I remember was on in a rail type dragster. 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. The spark plugs are also positioned well, and I cant foresee any interference with any headers. Small Block Ford Head Torque Sequence | GTSparkplugs We evaluated each head on the flow bench, average overall power, and we calculated average horsepower-per-dollar. 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? 302 4v heads | Ford Muscle Cars Tech Forum When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Not sure about the 5089. But there is absolutely something else wrong. The F code 302-2V was made from 68-73. What Is the Boss 351 Mustang? - CJ Pony Parts Edelbrock E-Street cylinder heads are just the ticket. I installed these on a factory 302 HO in my 94 Mustang. While the Boss 302 was normally considered a 302 with 351 Cleveland heads, these canted-valve heads were used first on the Boss before the rest of the Cleveland was developed. 1969 - C9ZE-6090-A or C
Ford had and did a great job with Ford Motorsports programs which we were in . As fitted to the Boss, the heads feature steel spring seats, screw-in rocker studs, pushrod guide plates, and adjustable rocker arms. These heads are always perfect, but could use a little bowl work thanks team SUMMIT. We should also mention that although we didn't test a stock iron casting, it should be clear that even the heads on the lower end of our test would still be an improvement over stock factory castings. A recent test of a prototype set of Hammerhead's castings bolted on a 427ci small-block stroker produced over 600 hp with a streetable hydraulic roller camshaft and 600 lb-ft of torque. Im using a fairly mild flat tappet cam, so growing the installed height of the springs by 60 or 70 thousandths woul put both the seat pressure and open pressure weill within specs for a flat tappet cam. Evidently youre research people are either misinformed, or just dont really care about building anything ford. 1.90/1.60 in Valves. As the 1968 Tunnel Port engine turned into a disaster, someone at Ford Engine Engineering got the idea to put a set of Cleveland heads on a Tunnel Port block and thus was the beginning of what would become the BOSS 302 engine. These are certainly worthy of attention at this excellent price. A borescope down the intake revealed lots of oil in the intake runners near the valves. 1-330-630-1555 1-888-841-6556. . There was also drill flash from the machining of the bores for the valve guides and spark plugs. I did hear somewhere that there was a fellow using the late model chev heads and cutting those up and making a crossflow head for a 300 six..That would not be too hard to check out if a fellow had a 300 six block and some access to some of the late chev heads I think the LS6 heads..It took three of the heads to make one and since they are aluminum that resolves some of the fabrication issues..Is it true well I dunno for sure but it may be worth a looksee to see if it may work..