Hack said: The size of 302 valves has varied a little in some performance versions over the years. one of the hotrod magazines did an article on the combo back in the 70's. Ive built 302/347 engines with stock heads, Roush180/Windsor Jr. , and Trick Flow Twisted Wedge heads. The supplied ones are generic and poor fitting. So, instead, they ran a simple 750cfm Holley carburetor, along with 1-3/4-inch dyno headers. Im looking for three Ford Cleveland 4V engines. Ford's legendary racebred Boss 302 engine remains one of the most significant high-performance power plants in the company's history. 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. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. legend . Building LS garbage? The Ford had slightly less compression, at 10.5:1, so out of the gate, Chevy had a little bit of an advantage.. Renegade Street. 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. 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. These elements made the BOSS 302 a unique mill compared to what the rest of Detroit had to offer at the time. 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. Absolutely no complaints, tons of flow and tons of fun. stud kit is of poor quality everything else in my order was good quality. How can you call it racing if you're putting the brakes on before the finish line? FLO-TEK Performance cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. The drag strip in my area doesn't have any classes. Aluminum. The most notable thing about the Flo-Tek heads available through Speedway Motors is the pricethat's $739.98 for a complete, ready-to-bolt-on pair of aluminum heads for a small-block Ford. Pontiac was the outlaw division. 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. Because they didnt allow destroking [of an existing engine design] initially, both companies had to build actual displacements of five liters, explains Holdener. Having a hard time finding Boss 302 Heads online? In the 1960s, Ford was an outspoken car company, much as Pontiac Division was within General Motors. Once those two tasks were completed, the heads delivered the best peak horsepower and torque numbers of the entire test, knocking down an excellent 380 hp at 6,000 rpm. I didnt and I think some of that lube got burned on the valve seat and causing it to not seal but, will have to open it up to find that out. This particular evaluation only works, however, if lowest cost is the highest priority. Outperform many more expensive parts. You may also cruise the online auctions for a vintage 5.0L roller block (F1AZ-6010-B). JavaScript is disabled. Your email address will not be published. Here you can see exactly where each engine outshined the other, and by how much. The block is a 1980 302 Winsor. 69 Boss 302 Mustang & Cougar . Suddenly these heads arent so appealing. from United States. The intake valves all have. 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. instead of 50 oz. What type of heads fit a Boss 302 block? Our test heads came with the larger intakes that clearly contributed to these heads' strong showing. Though the average power was down compared to the TFS, RHS, and Edelbrock heads, the power is still acceptable, especially if you are more interested in getting a nice pair of aluminum heads than ultimate power. The Good and Bad of the head bolts on the SBF is that their are only 8 of them. The Chevrolet used a 1.50:1 rocker, while on the Cleveland head, they used a 1.73 ratio. Not sure about the 5089. 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. You have to rev it to the moon to really make any power. 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. This minor tune-up would really improve the flow curve and add a measurable amount of torque. JavaScript is disabled. i knew a guy that put a set on his 65 shelby. Twisted Wedge and Canted valve (TFS and C302b) in aluminum promote even better performance. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Exhaust - 1.72 inches. Wait 1.6 rockers? If ultimate power is not the most important point, then you could easily choose any of these heads and make a good decision. 125 of silicone is likely to blow out. Alum. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4 reach with flat gasket seat. Im looking to build an engine that produces 300ish hp. saw a pair of Boss 302 heads online for $400 and thought why not. They use a Cleveland style quench chamber and standard 302 Boss/351 Boss/351C/351 SVO valve train parts (will accept 2.19"/1.71" valves). And really, its a difference in the philosophy behind these two motors. A forum community dedicated to hot rod owners and enthusiasts. 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. Boss 302 blocks are used all the time for Windsor headed performance buildups! Edlebrock is one of the few companies making great performance parts for small block Fords. 1970 Intake - 2.19 inches Exhaust - 1.72 inches. and if you want to use a high-lift cam or supercharger; thats no problem, either. Do 302 cylinder heads increase RPM? Then Ill be looking for upgrades. BluePrint Engines Ford 302 C.I.D. The BOSS 302 heads are known as "Cleveland style" heads as they are based on the head designed for the 351 Cleveland engine. Intake - 2.19 inches
Inline and < 15* valve angle such as World Products Man O' War 10* heads promote very good performance. They had to combine a four-inch bore from a 327 block with the three-inch stroke from the 283, Holdener elaborates. Great option. Valve stem heights all the same, decent springs, work fine for my rolller cam, good fit and finish. These features improve an engines efficiency, resulting in more horsepower and torque and improved mileage potential. Ive had several other brands, but HP has been the best. The TFS heads appeared to be the big dog in the room when it came time for testing. THe new heads will have the same bolt-pattern as the original 6. stock rebuild,. We'll send you raw engine tech articles, news, features, and videos every week from EngineLabs. PRO1 170 Ford Tech Sheet - H30. They'll work but have you got the Boss heads? Opens in a new window or tab. Other Intakes >> Application. The cylinder head also contains the spark plug and fuel injector(s). I have not been able to specifically identify because the stamp on corner does not mach up with what it should be. 185 cc Intake. What? This one appeared great at first use and for a couple of months. The 240 and 300 are basically the same engine -- based on the same block design anyway. All in all, Im not a fan of this series from Dell. There was also drill flash from the machining of the bores for the valve guides and spark plugs. 030 shim. They used the 3 center sections of the heads. All they had to do was make the piston dome bigger on the 302 to keep the same 11:1 compression ratio.. Plus we used cam dial-in and it was only off a half degree. (BOSS) It collects next to nothing. LOOKS AND PERFORMED GREAT. Don't know if it's still good. I would however like to be able to buy a set of heads and not have to go through them like I had to with these. I have certificate for it. Aluminum will allow you 1pt up in compression for its ability to shed heat. Not too much carb for this engine. pulled heads out of box, one head was in very nice shape, ready for service. ported and polished heads can also provide good results, but they may require more work to install and tune properly. They dont flow as well as some of the more expensive options available but they flow way better than OEM cast iron heads. When I set the carb I get a bouncing vacum needle at idle, Ive been told thats a sign of a sticking valve. Bored out 70-thousandths to 310 cubic inches and with a laundry list of. 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. No drilling is required since it appears they updated the manufacturing process to eliminate this need. Moving to the Blue Oval, we see that they went with a milder profile. The 302 has a 9:1 compression ratio, while the 347 and 363 have 9.6:1 and 10.2:1, respectively. 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. 1969
The less you know the more you need vacuum secondarys. It took about 500 honest HP to break into the 11s with a little bit heavier car than your mustang. quick fuel 650 performer rpm intake these heads smallest trick flow cam. If I wasnt on a time crunch, I would have returned these heads. 2/22 . Search 6 Hohenthann siding contractors & companies to find the best exterior and siding contractor for your project. These heads are screaming on the 302 I just built and are great quality. . This educational content is not intended to be a substitute for professional advice. Click to expand. Required fields are marked *. . Stroke that thing. RHS shipped the heads with what should have been a sufficient single 1.460-inch-diameter valvespring, but the horsepower graph reveals that above 5,800 rpm the power trailed off, leading us to think that perhaps with a better spring this head could have carried the power out beyond 6,000 rpm, which would have improved its peak horsepower number. Perfect fitment, good quality heads on a budget! These heads have the right size valve for those piston. You can see the marks the intake valves made so you can clearly see the reliefs are not big enough (as in diameter, not depth). writing. The holes are also there in a 350 block and Felpro gasket as well as the 5073 head. 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! Some of the guys were running ford 300 six cylinders with good success. Whenever youre running a flat tappet cam, always use a zinc additive, Building Classic Ford 351 Cleveland Power. Pair. After idling for a couple of minutes the engine will start smoking horribly. Generator stud kit for 1938-48; use #8506. The Fora platform includes forum software by XenForo. Seems to me that if you get the right kit (ie correct wrist pin centering, rod length, etc), you should have no problem.. aliases: Bossssssman, bosscars, old fart, chat dawg, hey you. If weight is a consideration, keep in mind that these iron castings weigh considerably more than the rest of the aluminum heads. The DZ 302 in the Z/28 was a natural marketplace competitor to the Boss 302 from Ford. 64cc Volume. 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! Stroking an engine is not going to reduce your engine rpm. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. The Boss 302 and 351C-4V head casting are the same except for a minor difference in water passages. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Fords incredible 1969-70 Trans Am BOSS 302. Roush? Small Block Ford. 154-3701: SB Ford Boss 302 12pt Head Bolt Kit. More than 400 horses easy. Huge difference in quality. Russell; COMP Cams; TCI Auto; FAST; E-Comm Sales: Sales: 888-799-1135 Tech: 800 . The F code 302-2V was made from 68-73. The BOSS 302 heads used some of the biggest valves in the industry. Ever wonder what those camshaft specification numbers really mean and how they affect engine performance? Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! . Sign up for a free trial to MotorTrend+ today. I think Im in love, lol!!. Great top end with these heads also. [The Boss] cylinder head came about after Fords experience with the tunnel port cylinder head where they learned lots of head flow equals lots of power, Holdener relates. Assembled. We will admit to you our results on the dyno were disappointing304 horsepower and 288 lb.-ft. of torque. 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). 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. 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. Needless to say the head kicked ***. For the testing, Holdener put together a non-numbers matching replica of the DZ 302. either way, Im so thrilled with this product that im picking up the 205s for a fast engine build. Would modifying the heads bring down the value of the heads? detroit metro auto parts "302" - craigslist . If we were going to use these heads on a street engine, we'd disassemble them and spend the extra bucks to add a 30-degree back-cut to the intake and exhaust valves to improve their overall flow. I recommend purchasing ARP studs and guideplates for perfect rocker alignment. At idle when vacuum is the highest the valve guides leak lots of oil into the intake. Up top, are a set of Ford Motorsports C302 cylinder heads, which have been worked over by Roush-Yates Racing. Sold individually. We evaluated each head on the flow bench, average overall power, and we calculated average horsepower-per-dollar. 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. Build your own custom newsletter with the content you love from EngineLabs, directly to your inbox, absolutely FREE! These were available in stock and have the right size intake valves so I grabbed them instead. ), then the second-least-expensive headsthe Edelbrock E-Street headsreally begin to stand out. The recommended spark plug for your typical application is the Champion 792 plug, gapped at. Sizemore, formerly of Preperation H fame, did considerable valvetrain developement and terrorized the former checvvy stronghold of I and J/Gas. All Cleveland style heads including the BOSS has 1.73 to 1 ratio rockers. Will these heads work well?. 8:1 compression, TFS Stage 1 hydraulic roller cam, 1 5/8 headers, Summit Stage 1 dual plane intake, Edelbrock 650 AVS carb. I might like to put it back together this summer with your fluid damper a 600 holley carb and maybe your electronic distributor . Both engines feature a four-inch bore and three-inch stroke, so there are no excuses available for either side regarding minor discrepancies in displacement. What cam specs and static CR? Yates? Great article is there a video available ? Very nice , Made in USA quality and same price as off shore heads. 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? Locate Boss 302 Heads on sale below with the biggest variety of Boss 302 Heads anywhere online. The BOSS piston was a unique item, configured to use the 289HP rod with the 302 stroke. Comparing the cylinder heads on paper, using data collected by Holdener for a previous article, the Boss heads clearly come out ahead. Do the torque in 2 steps, first just hand tight, second with the torque wrench. I used them with a Comp Cams 274XE cam and a QFT 600cfm carb. 1.290 in Spring. The Ford roller rockers use a fulcrum base and a 5/16-inch bolt to attach the rockers to the head. Other than that it was OK. Truth is, a factory original Boss 302 is happiest with a 600 to 650 cfm Holley. However, its always fun to think about building one or even erecting one from scratch, which you can do with a Ford Performance BOSS block (M-6010-BOSS302) and Cleveland heads. AIR FLOW RESEARCH 1402 SBF 165cc Alum Heads Renegade Street 58cc. So Im into changing springs, retainers, locators, etc. Im trying to leave this pretty much as is, until I get a few good drives in. . Best heads for the price. I am through with their products. But when I received them the box was almost completely destroyed and when I took them out of the box 2 valve springs and retainers were off the stud and loose in the box. 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. Said to be "overvalved" for street performance. We got our answer. 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? 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. 9 intake valves since they bolt on easy with no modification necessary. The Cleveland type heads are used in the 302 heads. Ford went to Le Mans and beat Ferrari not once, but four times, settling an age-old dispute over who had had the fastest cars in the world. But the springs they come with are for a hydraulic roller cam. The rocker studs are 7/16, not 3/8. 1970
030 AND 2 OF THEM WERE. 300 HP wouldn't be far off. But as others have mentioned there are modifications that must be done to make it work. 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. Low mileage 440 from an RV, Hughes Whiplash cam and lifters, E-Street heads and RPM intake topped with a Quick Fuel Brawler 850 double pumper. While it only had .480-inch of lift, that duration would really allow the RPM to climb. Aluminum heads are affordable, lighter and will make more power. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Flat cylinder heads have large water capacity and excellent breathing characteristics. The Boss 302 takes the Mustang GT's suspension and adds higher-rate coil springs, stiffer bushings, and a larger diameter rear stabilizer bar. 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. One thing I found particularly awesome about these heads is the spark plug holes and threads. The DZ 302 used a 1.5:0 ratio, while the Boss 302 head used a larger 1.72:1 ratio. Renegade Street. Great performance didnt notice any quality issues or burred edges when they came in. . It would make a nice high rpm engine that was pretty soft on the lower end where you spend the most time. Pair. 1.290 in Spring. 98 sold 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 heads are a direct replacement for previous Twisted Wedge heads and work with all Twisted Wedge specific pistons. Talk to Coast High Performance in Torrance, CA who sells quite a few 347 Street Fighter kits/short/long blocks and they will have some stats to back up quite a different story. on a brand new set of heads. For a better experience, please enable JavaScript in your browser before proceeding. You will need the boss piston to go with the canted valves.. No. Cylinder heads casting ID decode for 260 289 302 351 390 406 427 428 429 460FE Boss Shelby. The BOSS 302s biggest shortcoming is port sizing, which is something Ford has rarely been able to get right. Heads are sold individually. I had 90 runs on an original Boss 302 in a 70 Mustang. A tad shorter then a 351W but a little wider due to the size of the heads. The results of this test didnt really surprise me, except for one thing, reveals Holdener. D. Hearne is on the money as usual. (Image/Jim Smart) Although these are 1969-70 BOSS 302 heads, they []. Depends on material old school rubber gets lube, the Polytetrafluoroethylene rubber gos on dry. This engine was built in the 80s by someone with way to much money. Tech-Sheet. Ford took on the world with the GT40 supercar. For Use w/289/302/351 Windsor-Style Engines. 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. Where in the world did you come up with the "347s are not reliable"?. The connection with metered networks (or connecting to your phones hotspot) appear to deteriorate over time, and causes this error. Today's small-block Ford street engine builder has it easy. Junk ass Chevrolet stroker engines.puleeeeeze. I think it was Bruce Sizemore that ran an H/MP Maverick that held the class record for a while during the 70s. 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. Both these motors were factory-rated at the same 290 horsepower, but that number is suspect, says Holdener. They dropped off after that. And, he decided to make that happen. http://forums.vintage-mustang.com/vintage-mustang-forum/721154-1970-mach-1-h-code-build.html. 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 . 1.90/1.60 in Valves. 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. Fits on Dodge ramcharger, monaco, w100 series, sierra, pioneer, d300 pickup, d100 series, custom. Next, we test a low-rpm cam and a high-rpm cam in the same engine to demonstrate the power differences. The Fora platform includes forum software by XenForo. $ 5,595.00 Learn More. World contributed the lone cast-iron head to our Ford small-block test. 010 runout and wouldnt come out of the head without a lot of force (we never took it out). Cylinder Head 190cc Assembled. Boss 302s did indeed have 1.73 ratio rockers from the factory. It's important to note that this was the only head in our test that required its own separate valvetrain. These heads are really impressive!!!!!! There was dust and paper bits all over the keyboard and screen!! 1.73:1 rockers, 522 lift 292 duration nets 420 HP at 6300. It was a world beater and symbolic of the end of the classic muscle car era. Have you got the intake? Learn how your comment data is processed. The connecting rods began life as the same C3AE rod as the 289 HiPo but they had 3/8" bolts and they were spot faced instead of broached where the head of the bolt sits. Compatible with Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc Angled Plug Aluminum Bare Cylinder Head $238.88 $ 238 . The 69 and 70 F code 302's are rated at 220 bhp. Sign up for a free trial to MotorTrend+ today and start watching every episode of Engine Masters, plus much more! My first ever computer was an HP Pavilion PC, and theyve always been my favorite brand since then. The DZ 302 has a reputation for being a high-RPM screamer, and the camshaft is definitely part of that. 1 on Pg 2 instructs the used to drill 3 holes if a 400 block is used. So howd they stack up? BOSS Cars Nationals 2005 - BOSS Cars Reunited. True but it seems excessive to me. Production casting part numbers:
Ford has always been a car company that dared to go where no automaker had ever gone before. I think it was based on the Cleveland design. And the reality is, they did, in modified trim the way they were raced in the Trans-Am series. Chevy used higher compression and lots of camshaft, combined with mild cylinder heads. Batten cyl heads was instrumental in developing the high port exhaust for the Dyno Dons and Bob G's and Jack Roushes. 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. This has been done and is generally called a Clevor (using Cleveland heads on a SBF). The RHS headsproduced the next-closest average horsepower and torque, with the Edelbrock and Ford heads very close behind. I am running them on a 302 and purchased this set for a 351 build. Cross Boss 302 Mustang off highway use. 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. No problem coming off corners at low rpm in higher gears and the pull in the higher gears on top is amazing for what I paid for them. Because the 302 Tunnel Port called for high revs in the 9,000 rpm range to make real power, racers scattered these engines all over racetracks across the country and left feeling defeated. Great bang for your buck with these heads. 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 . Great velocity with these heads. The cylinder head is an important component of the internal combustion engine in a Ford 302 car. 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. That tradition dates back to the companys founding in 1903. The darned thing was rabid dog fast. Im sorry guys but you somehow missed something there are boss 302s out there cranking out way more than what you guys are claiming. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! Needless to say they began to really spank everybody and by the end of the season the six cylinders were out ruled. Have a 70 351 4v stored 25 yrs 50 k miles complete minus carb dist has manifolds 1800. never lube the seal lip ?