When it comes to the valve events, Ford and Chevrolet took two different approaches. We tried this formula to see what our basically stock BOSS 302 would do. The RHS heads come out of the box with a very nice-looking casting, and back that image up with respectable performance. Yates? Search 6 Hohenthann siding contractors & companies to find the best exterior and siding contractor for your project. I really liked my 69 428 CJ. you need custom pistons, boss intake, boss heads, boss pushrods, custom headers for a 65-66 mustang, 69-70 b2 headers for 67-70 mustang. 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. Said to be "overvalved" for street performance. 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 . These are perfect for the low compression big blocks of the mid to late 70s. detroit metro auto parts "302" - craigslist. Valves 2.02 / 1.55" . After its time on the pump, the DZ 302 posted 357 horsepower at 6,700 rpm and 333 lb-ft of torque at 4,300 rpm. one of the hotrod magazines did an article on the combo back in the 70's. You have to rev it to the moon to really make any power. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! Well I have a 1977 copy of Pop. ONE WAS OFF BY. 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. The Edelbrock #5073 E-Street cylinder heads are designed for use with 1955-1986 Small-Block Chevy applications. They pull much harder through the midrange than the 351W heads they replaced on my 302 Ford. . It didnt conform to corporate protocol and invented the muscle car in its 1964 GTO. They will outperform many of the average aluminum heads. Edelbrock E-Street cylinder heads are just the ticket. What? 015 AND THE REST WERE. 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. Renegade Street. Does anyone remember the six cylinder heads they made for Bruce Sizemore. The 363 uses FRPP Z2 cylinder heads. Are there any aftermarket heads for it? These were available in stock and have the right size intake valves so I grabbed them instead. The connecting rods and crankshaft are made of forged steel, and the heads are aluminum with roller rocker arms. The heads also required custom-length Comp Cams pushrods to compensate for the relocated valves. Ford took on the world with the GT40 supercar. He stated he spent over $10,000 back then. After idling for a couple of minutes the engine will start smoking horribly. I purchased these because I needed some better than stock, but not full out race heads. It took about 500 honest HP to break into the 11s with a little bit heavier car than your mustang. Raced and owned quite a few Boss 302s. Im just hoping the new Edelbrock intake that arrived yesterday is better than these. Have you got the intake? 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. We were smart enough to test-fit the heads on the Boss 302 block before testing began and discovered these heads are designed to be used with 7/16-inch head bolts, with restrictors in the head-bolt holes. This makes it easy to torque and lower cost for better aftermaket bolts and studs. It came with aluminum heads that were way too big for the cam and my use. The Cleveland style head featured a staggered, canted valve arrangement. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4 reach with flat gasket seat. 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. Better compression then stock, better breathing then stock. Though I rated the overall part as good, the areas that really count are just average. The heads are a direct replacement for previous Twisted Wedge heads and work with all Twisted Wedge specific pistons. For the testing, Holdener put together a non-numbers matching replica of the DZ 302. 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. 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. BluePrint Engines Ford 302 C.I.D. Small Block Ford. Up top, are a set of Ford Motorsports C302 cylinder heads, which have been worked over by Roush-Yates Racing. I have used them for over 35 years and never seen something like this. Edelbrock E-Street cylinder heads are just the ticket. 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. This minor tune-up would really improve the flow curve and add a measurable amount of torque. Neither was really that streetable but of the two the 70 had the smaller valves whick helped a little with the low rpm feel. Absolutely no complaints, tons of flow and tons of fun. That would probably have been the only intake available to work , at that time. The BOSS 302 heads are known as "Cleveland style" heads as they are based on the head designed for the 351 Cleveland engine. Fords great success with its powerful V8 engines is legendary. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! These features improve an engines efficiency, resulting in more horsepower and torque and improved mileage potential. For a better experience, please enable JavaScript in your browser before proceeding. There is a lot he did to this engine, if you're interested but he kept the orig. if you have over. The Ford is specd out at 228 degrees at .050-inch lift, but lift was a different matter. The store will not work correctly in the case when cookies are disabled. 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. A borescope down the intake revealed lots of oil in the intake runners near the valves. It is now becoming sluggish, and I get LBSOD issues frequently because of the wifi. 1.73:1 rockers, 522 lift 292 duration nets 420 HP at 6300. 8l F250hd efi roller engine? They had problems with the 69 heads..made some changes in 70 and won the Trans Am races.So 70 or 71 heads are the better heads. These are perfect for a street build and the price is outstanding!!. Fords classic 1969-70 BOSS 302 engine was a bold step forward after a miserable season in 1968. But thanks to all of your responses this is not for me! 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. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! Help keep from being nose heavy. Just my thought. The J code 302-4V was only made in 68. These heads have the right size valve for those piston. The Fora platform includes forum software by XenForo. Still have lots of racing Boss and Hipo parts. And the reality is, they did, in modified trim the way they were raced in the Trans-Am series. For the Boss 351, the entire Cleveland engine was used instead of simply the heads. Above you see a casting with a D1ZE part number. It ran a regular head that was tweaked (either before the slicing or class requirement). Fits on Dodge ramcharger, monaco, w100 series, sierra, pioneer, d300 pickup, d100 series, custom. 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. What I got was good, but the quality control person should not have let these go out the way they are. See all 22 photos. 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. Perhaps you should do a YouTube search for Ford 302 boss vs 302 Chevroletperhaps it could wake you up on how much you DONT know about ford racing . Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4in. 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. Needless to say the head kicked ***. for use w/ Special Intake. However, in the upper RPM range, the Boss 302 shows a definite, significant advantage over the DZ 302. 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. 1.290 in Spring. Cloyes gears to replace the factory chain set-up and hand-built his own Accel BEI distributor by machining the housing ut of aluminum billet. Are you looking for a set of entry-level street performance heads for your modern street rod, musclecar, or truck? I am running them on a 302 and purchased this set for a 351 build. The DZ 302 in the Z/28 was a natural marketplace competitor to the Boss 302 from Ford. I was going to have my reconnecting rods reconditioned with 5/16 arp bolts. The DZ 302 used a 1.5:0 ratio, while the Boss 302 head used a larger 1.72:1 ratio. 165 cc Intake. and if you want to use a high-lift cam or supercharger; thats no problem, either. Age Group: adult. FORD and Mustang Cylinder Heads (6090) 5752143: 59 332 352 . In 1970 the Boss 302 was a Camaro killer, it could go 0-60 mph in 6.0 seconds. I have a Eldabrock Performer intake,msd distributor and 6al box and a 61mm bbk throttle body. DART . I figured the Boss would make peak power. Experimental Part . If ultimate power is not the most important point, then you could easily choose any of these heads and make a good decision. Once I pick the heads I was going to find a good cam for daily driving/ performance. Great top end with these heads also. http://forums.vintage-mustang.com/vintage-mustang-forum/721154-1970-mach-1-h-code-build.html. When the SCCA started the Trans-Am series. It had to sneak the GTO in under the radar of upper management. . GT40 heads use 1.84 intake / 1.54 exhaust. Aluminum will allow you 1pt up in compression for its ability to shed heat. The Mustang 5.0L Coyote Engine Gen 1, Gen 2 & Gen 3 differences are explained by Landan with LMR. SBF FORD Aluminum Cylinder Heads 302 /351w 190cc 62cc 2.02 /1.60 For ROLLER CAM. Cylinder heads casting ID decode for 260 289 302 351 390 406 427 428 429 460FE Boss Shelby. 030 AND 2 OF THEM WERE. We evaluated each head on the flow bench, average overall power, and we calculated average horsepower-per-dollar. If youre using stock pistons, get the version of these heads with the smaller intake valves (Part #5023). FORD 5.0L/302 Cylinder Heads. saw a pair of Boss 302 heads online for $400 and thought why not. Not even close to what I thought I should be getting in a brand new set of heads. The heads are Cleveland heads. 22-25 Ft/Lbs - Iron Heads. Henry Ford II wasnt going to have it any other way. Cleveland's Crown Jewel. Not the 2012-13 Coyote DOHC BOSS, but instead the genuine pushrod original from an era when Ford did the unthinkable repeatedlyand won! I think Im in love, lol!!. 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. After spending an hour on the Edlebrock Tech line we determined the instructions are out of date relative to the current product being delivered of the 5073 head. While the DZ 302 had a stronger midrange than the Boss 302, in stock form, the Boss reigns supreme in the higher RPM range. ---185cc Aluminum Heads for SB Ford --- . See the top reviewed local exterior and siding contractors in Hohenthann, Bavaria, Germany on Houzz. The 300 block may have a slightly taller deck height than the 240. Guys if you want to make serious power. If you used windsor heads its not a BOSS. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. 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Twisted Wedge and Canted valve (TFS and C302b) in aluminum promote even better performance. AFR - Airflow . I HAD TO CHANGE OUT THE SPRINGS FOR ONES WITH MORE PRESSURE DUE TO VALVE FLOAT AND I AM ONLY RUNNING AN E303 CAM. Not only did the TFS heads produce the most peak power, they also logged the best average torque and horsepower. Opens in a new window or tab. 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. A forum community dedicated to hot rod owners and enthusiasts. 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. I understand why now they are so much more money! 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 68 J and F code heads show to be the same in my information. Its not a good time to be building a performance engine. I passed over a different set of heads at the recommendation of my machinist. All in all, Im not a fan of this series from Dell. 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. Boss 302s did indeed have 1.73 ratio rockers from the factory. Actually, everything about these heads helps the little 302. Then Ill be looking for upgrades. Building LS garbage? Thanks to all who helped us get here. Chevy used higher compression and lots of camshaft, combined with mild cylinder heads. Other than that it was OK. Ford's legendary racebred Boss 302 engine remains one of the most significant high-performance power plants in the company's history. Get big power on a small budget with BluePrint Muscle Series cylinder heads! Its all a win,win. Edelbrock E-Street cylinder heads are just the ticket. 8:1 compression, TFS Stage 1 hydraulic roller cam, 1 5/8 headers, Summit Stage 1 dual plane intake, Edelbrock 650 AVS carb. 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. So howd they stack up? i drank a bottle of 10,000 rpm and thode a rod !!! Any who, this is a work laptop, and it started out pretty fast, but over time, it eventually slowed down. extreme amount of burrs left all around the rocker shaft mounting pads. Outperform many more expensive parts. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines. Top Rated Seller Top Rated Seller. disappointed discovering this situation. 045. Here you can see exactly where each engine outshined the other, and by how much. The BOSS 302s biggest shortcoming is port sizing, which is something Ford has rarely been able to get right. Expensive mistake. 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. searching. For a better experience, please enable JavaScript in your browser before proceeding. They are Worth it. They dropped off after that. The stroke difference between the two engines amounted . One side opted for mild lift and more duration, and the other went for more lift and milder duration. Ford Aftermarket. Exhausts have only a. Our test heads came with the larger intakes that clearly contributed to these heads' strong showing. Enter Fords development of an all-new 351ci engine with poly-angle valve heads and tight-fisted wedge heads destined for a 1970 introduction. If we've muddied the waters a bit, it's only the result delivering more information on the way to a decision. 58 cc Chamber. They are also cast with combustion Do the torque in 2 steps, first just hand tight, second with the torque wrench. I believe C.J. The spark plugs are also positioned well, and I cant foresee any interference with any headers. This made-in-the-USA head is Edelbrock's value leader. Inline and < 15* valve angle such as World Products Man O' War 10* heads promote very good performance. Comparing the cylinder heads on paper, using data collected by Holdener for a previous article, the Boss heads clearly come out ahead. But as others have mentioned there are modifications that must be done to make it work. Purchased a long block on CL. . Save my name, email, and website in this browser for the next time I comment. There was also drill flash from the machining of the bores for the valve guides and spark plugs. However, way down low, where the big-port Boss 302 motor isnt supposed to work, it made decent low-speed torque. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines. We started FORD Drag Club at Horn-Williams Ford in Dallas,Tx. Required fields are marked *. Very limited suppliers of flathead parts always look to speedway for my hotrod items. they mandated a 5.0-liter displacement limit. Typing on the key kaed is cumbersome. True but it seems excessive to me. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. 1 on Pg 2 instructs the used to drill 3 holes if a 400 block is used. This was a simple fix, using a drill press to open up the restrictors before we could use the 1/2-inch ARP head bolts. 1.290 in Spring. [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. 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. And you'd have to replace the factory two-piece valves which are known to come apart randomly for no reason. I had 90 runs on an original Boss 302 in a 70 Mustang. The product is a great entry level/cheap head though so 5 stars! Although we thought that the previous 302 Windsor vs 305 TPI was a pretty fair test of two era-and market-specific competitors, this has to be the ultimate level-playing-field. He used a correct Duntov camshaft and set the lash a little tighter than the original spec, at .020-inch. 20 Best Cycling Shorts For Long Distance (2023 Updated), 20 Best Cylinder Lock For Storage Unit (2023 Updated), 20 Best Treats For Guinea Pigs (2023 Updated), 20 Best Treats For Goldendoodle Puppy (2023 Updated), 20 Best Treats For Golden Retrievers (2023 Updated), 20 Best Treats For German Shepherd (2023 Updated), 1953 Ford Customline 8 Cylinders 3.9L 2BL. Greg has spent eighteen years and counting in automotive publishing, with most of his work having a very technical focus. IF YOU DO THIS BE SURE TO USE PERMATEX #2 ON THE INTAKE STUDS. The gaskets do not indicate which side goes out so be careful and dont do what I did and install them with the raised seal facing the intake side. Jeff Speegle Come see us @ ConcoursMustang.com MCA Shelby Judge, SAAC & Team Shelby Judge (in no particular order . Where in the world did you come up with the "347s are not reliable"?. Click to expand. stock rebuild,. [] Heres a close up of the head Marvin is using on our 351C build. 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. [IMG]http://home.pacbell.net/kketell/USAFlag2.gif[/IMG][IMG]http://a8.cpimg.com/image/56/2C/8548438-4e05-00C8003F-.jpg[/IMG]. THE NEXT ISSUE IS THE RECOMMENDED INTAKE GASKET FEL-PRO 1262. Best for 302-351 cubic inch engines. 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. Swirl Remarks CHW's Modified Boss 302 head shows the elimination of a swirl effect at lifts below .600 inches. That was a surprise.. 1970 Fastback (to be finished outside as a Boss 302 tribute), thanks for all the responces! But there is absolutely something else wrong. Brand New. Heads are sold individually. It had a close ratio 4 speed transmission, a 3.50:1 rear axle, a staggered shock competition suspension and a 16 : 1 steering box. There is no flat spot and these engines will pull from 2000 against any rival including a Windsor. Dimensions in Inches (LxWxH): 24.1 x 24.1 x 8.7. http://fordsix.com/forum/viewtopic.php?t=33048, 1971 Ford Maverick - Budget 10-Second Turbocharged Maverick Coupe - Car Craft Magazine. Ford has always been a car company that dared to go where no automaker had ever gone before. 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? They show to be suitable for the 221-302 Ford Small Block. Otherwise, pair these with some flat top pistons with the correct valve reliefs. And then it's gonna be HP you'll make, not a lot of torque. Other than this the heads flow nicely on the street. What cam specs and static CR? The factory 780cfm carburetors are really, really expensive, and we didnt want to spend a few thousand dollars on a carburetor, explains Holdener. Remember this correction adjustment is approximate and is only meant to get you close for the initial start up of the engine.
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