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The product is a great entry level/cheap head though so 5 stars! The J code 302-4V was only made in 68. Roush? I am presently installing a 302 clevor into a 83 mustang GT. I really liked my 69 428 CJ. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. installed the heads on a 1978 460 bored out .060 over went from 500 hp to 551 hp @4900 rpm on a dyno 8/9/19. I was still only available with the special 302ci 290 hp high output engine. Outperform many more expensive parts. Boss 302 - 1970 Boss. 9 intake valves since they bolt on easy with no modification necessary. Flat cylinder heads have large water capacity and excellent breathing characteristics. Above you see a casting with a D1ZE part number. pulled heads out of box, one head was in very nice shape, ready for service. This could easily cause a hot edge and create premature detonation of the charge. 70 Boss 302 intake 2.19 / exhaust 1.71. Find Parts and Accessories Boss 302 aluminum heads KEYWORD and get Free Shipping on Orders Over $99 at Summit Racing! 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. The factory Boss 302 did not have a deep sump pan although it did have a baffle in the sump, and yes it has 1.73 ratio rockers from Ford. My first work Dell was super slow and sluggish, so I was sent a new one. Like with standard 4V heads, you would have to machine the tops of the heads to accept screw-in, adjustable rocker studs. To pull this off, we needed a durable mule, so we chose Ford Racing's Boss 302 345-hp crate engine that comes with a set of aluminum heads actuated by a .480-inch lift B303 hydraulic. Intake - 2.23 inches Its all a win,win. It was a world beater and symbolic of the end of the classic muscle car era. . Their modern combustion chamber design helps to improve the combustion process and their larger-than-stock intake and exhaust ports help to move more air through your engine. I would suggest pulling the vavles and wiping everything down. Ford Aftermarket. but thesell work on a large engine and flow, too. We used Comp roller rockers for the remaining heads to level the playing field, but if you are considering a set of these heads, be aware that the rockers and fulcrums need to be considered as well. We learned on the first few pulls that we had too much carburetor with our 750 cfm Holley 4160 and too little camshaft. No votes so far! 040 roller short block A little lope at idle but it pulls everywhere in the rpm range. They'll work but have you got the Boss heads? These lightweight aluminum heads bolt up to your small block Ford and feature 190cc intake/60cc exhaust runners, 60cc combustion chambers, and 2. Though I rated the overall part as good, the areas that really count are just average. The Coyote V8 engine also concurrently debuted in the 2011 Ford F-150. True but it seems excessive to me. Renegade Street. A guy near here used the advice on the link below, starting with a 67 289 2V engine. crank, offset-grinding it to a smaller crankpin diam. Cylinder heads casting ID decode for 260 289 302 351 390 406 427 428 429 460FE Boss Shelby. 302/351 X2 Head. Semi or Farm tractor repair shops would probably have the location of one near you.Now, with all the Aluminum small block head available, you could create a real bad 6. 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. 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). The real question is, what do these factory motors make, and how do they compare to each other?. Boss 302 heads are unique.No other heads will work without some changes. 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. 1.290 in Spring. The BOSS 302 Registry is not affiliated with the Ford Motor Company. Exhausts have only a. No drilling is required since it appears they updated the manufacturing process to eliminate this need. 64cc Volume. JavaScript is disabled. 1/23 . The DZ 302 has a reputation for being a high-RPM screamer, and the camshaft is definitely part of that. Jeff Speegle Come see us @ ConcoursMustang.com MCA Shelby Judge, SAAC & Team Shelby Judge (in no particular order . Dells are ok computers. Crate Engine, 302 C.I.D. We will admit to you our results on the dyno were disappointing304 horsepower and 288 lb.-ft. of torque. The heads also required custom-length Comp Cams pushrods to compensate for the relocated valves. Boss 302. Cast from prime A356 T6 aluminum, these "Z" heads from Ford Racing were designed using solid modeling technology. 4V. Aluminum. Weve got 302 fords with gt40 3 bar heads making over 500 hp. The BOSS piston was a unique item, configured to use the 289HP rod with the 302 stroke. I wanted to built a great runing, mild street motor around a stock sbf 302 short block. 69 Boss 302 Mustang & Cougar . 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. So now, we have a pair of legends, being compared on the dyno. The Duntov cam that GM used in the DZ 302 had over 250 degrees of duration at .050 [inch]! Holdener explains. To pull this off, we needed a durable mule, so we chose Ford Racing's Boss 302 345-hp crate engine that comes with a set of aluminum heads actuated by a 0.480-inch lift B303 hydraulic roller cam, and 9.0:1 compression. Works with most standard components. Still have lots of racing Boss and Hipo parts. The supply chain issues are eliminating a lot of choices. Factory was1.73 IIRC. Your email address will not be published. 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. You might even be able to get some rejects since you'd be cutting them up and remaching anyway. . Other than this the heads flow nicely on the street. Evidently youre research people are either misinformed, or just dont really care about building anything ford. Fig. Won't work with the 289 stroke. Opens in a new window or tab. Are you looking for a set of entry-level street performance heads for your modern street rod, musclecar, or truck? I think the higher RPM one had larger valvesand ports, right? They are Worth it. they mandated a 5.0-liter displacement limit. I first installed an oil trap in the PVC thinking something went wrong with the piston rings. (Image/Jim Smart) Although these are 1969-70 BOSS 302 heads, they []. The cylinder head also contains the spark plug and fuel injector(s). 1-330-630-1555 1-888-841-6556. . Heads are sold individually. Original aluminum Boss 302 valve cover brackets for the spark . However, it also led to a lot of upset Bowtie fans for some reason. extreme amount of burrs left all around the rocker shaft mounting pads. These are perfect for a street build and the price is outstanding!!. These heads are screaming on the 302 I just built and are great quality. Typical rebuild, headers, Competition solid lifter cam, 1.73 Crane roller rockers. 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. See it here: yes its ben done. The cylinder head is bolted to the engine block and sits above the pistons. The result of this engineering effort was the BOSS 302 engine, which became the Trans Am mill of choice for 1969-70 and beyond in SCCA competition. The BOSS 302s biggest shortcoming is port sizing, which is something Ford has rarely been able to get right. 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. All rights reserved. We got our answer. The Cleveland heads can fit a 302 with the appropriate water passage mods and shouldered bolts to compensate for the bolt hole difference. Great article is there a video available ? legend . Henry Ford II wasnt going to have it any other way. These heads are really impressive!!!!!! instead of 50 oz. 98 sold Other than that it was OK. 1969 mustang fastback boss 429 351 race car front end. You are better off buying model 5023 with 1. THE FIRST SET I PURCHASED WERE LIKE THIS AND I INSTALLED WITHOUT CHECKING THEM. The Ford roller rockers use a fulcrum base and a 5/16-inch bolt to attach the rockers to the head. But there is absolutely something else wrong. DART . I think I have seen afrermarket heads but cannot rememmber where. Classes? They used the 3 center sections of the heads. Ford's legendary racebred Boss 302 engine remains one of the most significant high-performance power plants in the company's history. 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. The Cleveland style head featured a staggered, canted valve arrangement. Well I have a 1977 copy of Pop. If you are looking for a set of World aluminum heads, you can find them at Bill Mitchell Products. Plus we used cam dial-in and it was only off a half degree. I have certificate for it. it boots up ok but not as fast as my other i5 laptop. The 240 and 300 are basically the same engine -- based on the same block design anyway. Plus, they give you more power behind the wheel and in your wallet! However, this time it boasted 412 Horsepower and 390 lb-ft Torque! I believe C.J. It's important to note that this was the only head in our test that required its own separate valvetrain. Intake - 2.19 inches Using the native mouse is awkward. This makes it easy to torque and lower cost for better aftermaket bolts and studs. JavaScript is disabled. 1.290 in Spring. We'll squeeze all of this into these few short pages, which means we have a long way to go and a short time to get there. Autozone has a great price on these heads. This combo has been dynod at 460-ish hp at 5000 rpm and 550 ft lbs of torque at 2000 rpm. The DZ 302 used a 1.5:0 ratio, while the Boss 302 head used a larger 1.72:1 ratio. The problem is the oil drain back passage has very poor alignment with the block and the valves are sitting in a pool of oil. 154-3607: SB Ford 289-302 standard 12pt Head Bolt Kit. Typing on the key kaed is cumbersome. However, way down low, where the big-port Boss 302 motor isnt supposed to work, it made decent low-speed torque. Where in the world did you come up with the "347s are not reliable"?. Chevy used higher compression and lots of camshaft, combined with mild cylinder heads. And like the others mention, it was C.J. Once I pick the heads I was going to find a good cam for daily driving/ performance. 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! I am through with their products. 18 Ft/Lbs - Aluminum Heads. 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. A tad shorter then a 351W but a little wider due to the size of the heads. It came with aluminum heads that were way too big for the cam and my use. Said to be "overvalved" for street performance. Russell; COMP Cams; TCI Auto; FAST; E-Comm Sales: Sales: 888-799-1135 Tech: 800 . high power capabilities. It had to sneak the GTO in under the radar of upper management. Wait 1.6 rockers? [] Heres a close up of the head Marvin is using on our 351C build. The 300 block may have a slightly taller deck height than the 240. ---185cc Aluminum Heads for SB Ford --- All Cleveland style heads including the BOSS has 1.73 to 1 ratio rockers. Ive had several other brands, but HP has been the best. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. They had to combine a four-inch bore from a 327 block with the three-inch stroke from the 283, Holdener elaborates. 340 HP Boss, Long Block, Assembled, Internal Balance, Aluminum Cylinder Heads, Ford, Small Block Windsor, Each Part Number: FMS-M6007X2302E ( 1 ) Free Shipping Special Order $10,649.99 Not Available At This Time This product cannot be ordered at this time. These aluminum heads are assembled with the perfect match of components for outstanding, trouble-free performance. Get big power on a small budget with BluePrint Muscle Series cylinder heads! 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. D. Hearne is on the money as usual. We started FORD Drag Club at Horn-Williams Ford in Dallas,Tx. Needless to say the head kicked ***. The compression ratio is 8. We did this to expand the scale to show the differences in power near peak horsepower. How can you call it racing if you're putting the brakes on before the finish line? http://forums.vintage-mustang.com/vintage-mustang-forum/721154-1970-mach-1-h-code-build.html. Street Cruiser Cylinder Head. 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. supershifter2 :shocked: :shaking: < :bs: ! Remember this correction adjustment is approximate and is only meant to get you close for the initial start up of the engine. You have to rev it to the moon to really make any power. Im trying to leave this pretty much as is, until I get a few good drives in. Bolts in anywhere a 302 will go with the right headers and pan. GT40 heads use 1.84 intake / 1.54 exhaust. I work in IT, so I know a good laptop/PC when I use one. D1ZE service block and aluminum rods. Comparing the cylinder heads on paper, using data collected by Holdener for a previous article, the Boss heads clearly come out ahead. That puts lift over .500 inch .514 according to our calculations, minus the lash, Holdener reveals. Top Rated Seller Top Rated Seller. One thing I found particularly awesome about these heads is the spark plug holes and threads. Pic 3 shows what looks like an area of casting slag that was missed when they were cutting and cleaning out the valve seats and runner. 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. 2. The advantage was better flow because the intake was on one side and the exhaust was on the other. 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 completed head is also wider so push-rod holes need to be cut-out on the block side, then sealed with "o" rings, etc. Exhaust - 1.72 inches. from United States. Today's small-block Ford street engine builder has it easy. Not sure about the 5089. Cylinder heads are available fully assembled or as bare castings. Thesecret to a long life stroker is to add wieght to the crank so you can exterally balance @ 28 oz. 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. They are also cast with combustion Better compression then stock, better breathing then stock. That may or may not make your ultimate choice any easier, but if so, you can thank us later. Ford has always been a car company that dared to go where no automaker had ever gone before. Ford New Boss 302 w/351C HDS Hex Head Stud Kit. At less than $950 for the pair, these Edelbrock heads may be the best bang-for-the-buck investment of all the Ford heads in this test. THAT IS UNACCEPTABLE IN MY BOOK. Im sorry guys but you somehow missed something there are boss 302s out there cranking out way more than what you guys are claiming. Experimental Boss 302 style heads . detroit metro auto parts "302" - craigslist. The Chevrolet used a 1.50:1 rocker, while on the Cleveland head, they used a 1.73 ratio. Tell ya what ,leave the ford enginrs to the ford guys, and you keep playing with that some ole cookie cutter bowtie garbage youre so used to. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Would modifying the heads bring down the value of the heads? On episode 19 of Engine Masters, David Freiburger explains cam lift, duration, lobe separation angle, and installed centerline. There are still 6 other steam holes not present in the 5073 head that are in the 350 block circa 1972. Aluminum Block Aluminum Heads - Subtract .012? This provided more room for larger valves instead of the standard side-by-side arrangement. To complete the Boss, we added an Edelbrock Performer RPM intake, a Holley 750-cfm, mechanical-secondary HP carb, MSD distributor, and a set of open dyno exhaust headers, and we were ready to rumble. Both 1969 and 1970 302 BOSS engines will run great with a properly tuned 750 Holley. View Details. 1970 They feature high-flow ports and steel alloy intake and exhaust valve seats installed (they do require a competition valve job and bowl blending). The intake is off a 1965 Shellby. You will need the boss piston to go with the canted valves.. No. 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. Edelbrock Performance Cylinder heads are manufactured of A356 aluminum and made in the USA for AMC, Buick, Chevy, Chrysler, Ford, Oldsmobile, & Pontiac engines. Well, I got about 500 miles on the engine now and couldnt be happier about the build. 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? Boss 302 is a Windsor engine; uses Windsor cam lobe profile & 1.6 Windsor rockers. Its useful for when you have a tight engine compartment and headers in a Falcon. It's all bracket racing. Cast aluminum block and heads: Intake Manifold: Composite Boss 302 Specific with shell-welded and runner pack: Exhaust Manifold: Tubular . Im not sure what has happened to Edelbrock, but their quality control sucks. Up front, upgraded upper and lower control arms fix some of the shortcomings of the original Ford bits, while out back, a Fays2 suspension Watt's link locates . At the brochure, the two engines are identical power-wise, according to Holdener, but we prefer to let the dyno tell us who makes what. These are certainly worthy of attention at this excellent price. one of the hotrod magazines did an article on the combo back in the 70's. Reworking Cleveland heads I think would require reducing the size of some of the water passages and I unsure of the block clearance . Would it mess with the computer really bad. These all-cast heads are designed for hydraulic flat tappet and hydraulic roller cam engines with hefty intake runners, stainless steel valves, Viton seals, and dual springs. The results of this test didnt really surprise me, except for one thing, reveals Holdener. stud kit is of poor quality everything else in my order was good quality. Absolutely no complaints, tons of flow and tons of fun. Years ago there was a six cylinder weight break for the late model classes at one of the local dirt tracks that I would frequent. A stock Boss head will support way over 500 horsepower, where the Chevy will struggle at 400 horsepower. Much of this gain over the stock 345-hp Boss 302 rating can be attributed to Westech's lower 140-degree engine coolant test procedure and open dyno headers. 2023 Power Automedia. Don't know if it's still good. reach with flat gasket seat. AFR - Airflow . They are rugged and ribbed internally and externally for more strength. The F code 302-2V was made from 68-73. Cleveland's Crown Jewel. Any who, this is a work laptop, and it started out pretty fast, but over time, it eventually slowed down. One side opted for mild lift and more duration, and the other went for more lift and milder duration. To conceive the BOSS 302, Ford had to develop a special forged piston with a significant dome that would reach deep into the 351C heads 64 67cc chambers. 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It's also worth mentioning that due to a variety of scheduling and deadline pressures, the offerings from Dart and Pro Comp Electronics, both of which fit within our price prerequisite, didn't make the test. Especially for the price, I would buy them again in a heartbeat. Cover Autolite 4V casting D0ZX9B48-3 . The result was a powerful 290-horse factory screamer with peak street power coming in around 6,000 rpm. The Ford, however, made a peak horsepower number of 374 horsepower at the same 6,700 rpm as the Chevrolet, and again, had the same peak-torque RPM as the Chevy, but made slightly less peak torque, at 324 lb-ft. For Use w/289/302/351 Windsor-Style Engines. Stroke that thing. 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. either way, Im so thrilled with this product that im picking up the 205s for a fast engine build. 1969 Intake - 2.23 inches Exhaust - 1.72 inches. So howd they stack up? we all have our shortcomings. So get comfortable, slip on your Ford-colored glasses, and hang on.