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. The RHS heads come out of the box with a very nice-looking casting, and back that image up with respectable performance. The cylinder head is an important component of the internal combustion engine in a Ford 302 car. 8l F250hd efi roller engine? They pull much harder through the midrange than the 351W heads they replaced on my 302 Ford. Also, the visual aesthetic is pretty plain, and the laptop doesnt have a sleek feel to it. Throw a blue oval flag over the RHS, Edelbrock, and Ford heads, and the performance is very similar. which de-stroked it. See it here: yes its ben done. SB Ford WP Man O'War iron block/Man O'War aluminum head Head Bolt Kit. The Mustang 5.0L Coyote engine has evolved into the Boss 302, VooDoo 5.2L, and the Predator 5.2L. This could easily cause a hot edge and create premature detonation of the charge. I was wondering how these heads would work on my 97 5. 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. 302 (may have been used on late 68 model year) 4V . 1969 Intake - 2.23 inches Exhaust - 1.72 inches. Sizemore, formerly of Preperation H fame, did considerable valvetrain developement and terrorized the former checvvy stronghold of I and J/Gas. but thesell work on a large engine and flow, too. The BOSS head was functionally identical to the 351C 4V head. 1/23 . . They are also cast with combustion detroit metro auto parts "302" - craigslist. 22-25 Ft/Lbs - Iron Heads. Today, the aftermarket lineup of Ford cylinder heads has plenty of castings from which to choose. Bob Perkins(WI) located it and restored it to original shape and build special plexiglass trailer for it to display. 70 Boss 302 intake 2.19 / exhaust 1.71. This includes 260, 289, 302, Boss 302, 351W and related variants. For Use w/289/302/351 Windsor-Style Engines. He used a correct Duntov camshaft and set the lash a little tighter than the original spec, at .020-inch. 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. World contributed the lone cast-iron head to our Ford small-block test. Topping off the Boss 302 was a specially designed aluminum dual-plane intake manifold mounting a 780-CFM Holley four-barrel carburetor, covered by a closed air cleaner assembly with a single inlet snorkel and a ribbed, domed lid that was also chrome-plated. True but it seems excessive to me. It took about 500 honest HP to break into the 11s with a little bit heavier car than your mustang. Are you looking for a set of entry-level street performance heads for your modern street rod, musclecar, or truck? The BOSS 302 Registry is not affiliated with the Ford Motor Company. This engine was built in the 80s by someone with way to much money. Because they didnt allow destroking [of an existing engine design] initially, both companies had to build actual displacements of five liters, explains Holdener. Though I rated the overall part as good, the areas that really count are just average. This page last updated: February 3, 2022. Always interested in how things work, he enjoys sharing his passion for automotive technology with the reader. Rugged, ribbed internally and externally, with a large water capacity and excellent breathing characteristics. Like we said, if best power or least price is your only concern, then the decision is easy. 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. Future availability is unknown. I SENT THEM RIGHT BACK. Chevy used higher compression and lots of camshaft, combined with mild cylinder heads. Try the DZ 302 and see what happens! many cried in the various comments sections, to which the Ford faithful replied, Maybe against a BOSS 302! Well, Holdener was reading those comments, just like we were. It had a description amd Alan Johnson Cylinder Heads listed as the vendor and contact #805-922-1202. After idling for a couple of minutes the engine will start smoking horribly. Great top end with these heads also. Same transmission, run a 351W flywheel/flexplate (same as a C). You are better off buying model 5023 with 1. Purchased a long block on CL. The compression ratio is 8. I first installed an oil trap in the PVC thinking something went wrong with the piston rings. [IMG]http://home.pacbell.net/kketell/USAFlag2.gif[/IMG][IMG]http://a8.cpimg.com/image/56/2C/8548438-4e05-00C8003F-.jpg[/IMG]. 370 HP Dressed Long Block Crate Engines BP3027CTC Crate Engine, Base Long Block, Aluminum Cylinder Heads, Roller Camshaft, 600 cfm Carburetor, Ford, 5.0L/302, Each Part Number: MLL-BP3027CTC Not Yet Reviewed Estimated Ship Date: Today Free Shipping $6,519.00 Add To Cart Compare Wish List 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. Both of these options caused an internal vacuum leak because my intake sat low and the end seals did not let the intake ports seal like they should have. Both engines are solid flat tappet cams, and the Chevy especially responded to changes in the lash. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. For those who consider swirl a detriment to producing power this is a positive thing. Bored out 70-thousandths to 310 cubic inches and with a laundry list of. The connection with metered networks (or connecting to your phones hotspot) appear to deteriorate over time, and causes this error. Though peak horsepower is a quick reference point for evaluation, we prefer to use average power in these comparisons because it always produces a better picture of overall performance. THAT IS UNACCEPTABLE IN MY BOOK. From new ones to the aluminum headed one I have in my fairlane now. 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. 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. I was going to have my reconnecting rods reconditioned with 5/16 arp bolts. Exhaust - 1.72 inches. The Boss was topped off with an original aluminum. instead of 50 oz. You might even be able to get some rejects since you'd be cutting them up and remaching anyway. $1,692.99. Better compression then stock, better breathing then stock. For the Boss 351, the entire Cleveland engine was used instead of simply the heads. 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. 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. These features improve an engines efficiency, resulting in more horsepower and torque and improved mileage potential. Opens in a new window or tab. I think Im in love, lol!!. This is where you must spend the money. There is a lot he did to this engine, if you're interested but he kept the orig. 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. 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. can I send the stud kit back? Australian car enthusiast with 30 years experience in the high performance industry. This is my first engine build, let me know if Im doing it all wrong. The Fora platform includes forum software by XenForo. good luck with that. ---185cc Aluminum Heads for SB Ford --- For what the (complete) Boss heads and a intake will run seems you would be better off just going with a good set of after market heads. Intake - 2.19 inches for use w/ Special Intake. So your wrong. Inline and < 15* valve angle such as World Products Man O' War 10* heads promote very good performance. They feature revised valve angles and locations to reduce cylinder wall shrouding and improve flow, along with redesigned combustion chambers to accommodate the more centrally located valves. 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. Aluminum Block Aluminum Heads - Subtract .012? 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. Intake - 2.23 inches 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. Luckily I had the tools to put them back on but this could have been a issue and made them not bolt on 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? I simply cant believe this is all youve got. second time I have been disappointed with Edelbrock. 302/351 X2 Head. Alum. Small Block Ford. Will these heads work well?. The connecting rods and crankshaft are made of forged steel, and the heads are aluminum with roller rocker arms. Get big power on a small budget with BluePrint Muscle Series cylinder heads! 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. There was dust and paper bits all over the keyboard and screen!! http://fordsix.com/forum/viewtopic.php?t=33048, 1971 Ford Maverick - Budget 10-Second Turbocharged Maverick Coupe - Car Craft Magazine. When I set the carb I get a bouncing vacum needle at idle, Ive been told thats a sign of a sticking valve. Your email address will not be published. Flat cylinder heads have large water capacity and excellent breathing characteristics. Im sorry guys but you somehow missed something there are boss 302s out there cranking out way more than what you guys are claiming. 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. Huge difference in quality. Ford's legendary racebred Boss 302 engine remains one of the most significant high-performance power plants in the company's history. Valves 2.02 / 1.55" . I think the higher RPM one had larger valvesand ports, right? We apologize for the inconvenience The product is a great entry level/cheap head though so 5 stars! 1969 mustang fastback boss 429 351 race car front end. Fig. The odds of you building a vintage Ford BOSS 302 engine are slim because Ford built so few and so many are already spoken for. The Ford is specd out at 228 degrees at .050-inch lift, but lift was a different matter. For a better experience, please enable JavaScript in your browser before proceeding. The BOSS 302 heads are known as "Cleveland style" heads as they are based on the head designed for the 351 Cleveland engine. 58 cc Chamber. Whenever youre running a flat tappet cam, always use a zinc additive, Building Classic Ford 351 Cleveland Power. They'll work but have you got the Boss heads? Works with most standard components. This particular evaluation only works, however, if lowest cost is the highest priority. But for perhaps a majority of enthusiasts, this evaluation may be too simplistic. saving. It was what the SCCA mandated for street homologation. A tad shorter then a 351W but a little wider due to the size of the heads. 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. THE NEXT ISSUE WAS VALVE SPRING INSTALL HEIGHT. 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. For the testing, Holdener put together a non-numbers matching replica of the DZ 302. Ive built 302/347 engines with stock heads, Roush180/Windsor Jr. , and Trick Flow Twisted Wedge heads. Our FDC has over 150 racing members and FORD promised us Hubert Platts Drag Mustang after series which disappeared. reading. On episode 19 of Engine Masters, David Freiburger explains cam lift, duration, lobe separation angle, and installed centerline. The drag strip in my area doesn't have any classes. Boss 302 blocks are used all the time for Windsor headed performance buildups! The BOSS 302s biggest shortcoming is port sizing, which is something Ford has rarely been able to get right. Sold individually. Great bang for your buck with these heads. Stroke that thing. So, a big head, lots of camshaft, an aluminum intake, and a Holley four-barrel. PRO1 170 Ford Tech Sheet - H30. Fords incredible 1969-70 Trans Am BOSS 302. You have to rev it to the moon to really make any power. 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.. 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. Because the new 351 engine had the same bore spacing as the 289/302, it seemed logical for Ford to adapt this high-performance cylinder head to the small-block Ford V8. And torque is what gets the car moving from a stop, pushing you back in the seat. Combining with an iron block and aluminum heads, the 4.0L SOHC V6, made a substantial amount of more power than its predecessor, producing 210 horsepower at 5,250 RPM and 240 lb/ft of torque at 3,250 RPM. Greg has spent eighteen years and counting in automotive publishing, with most of his work having a very technical focus. Actually, everything about these heads helps the little 302. Crate Engine, 302 C.I.D. The runners are as cast and a bit rough. Turbo 300-inch Ford can bang off 10.90s at 120 mph. 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. you could also get a 302 crank and rods with custom pistons, a 302 crank with 289 length con rods and off the shelf b2 pistons. Building LS garbage? It had to sneak the GTO in under the radar of upper management. Won't work with the 289 stroke. I would suggest pulling the vavles and wiping everything down. 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. SBF FORD Aluminum Cylinder Heads 302 /351w 190cc 62cc 2.02 /1.60 For ROLLER CAM. 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. reach with flat gasket seat. Find Parts and Accessories Boss 302 aluminum heads KEYWORD and get Free Shipping on Orders Over $99 at Summit Racing! The Dart castings would have been the Iron Eagle versions, and the Pro Comps are affordable in aluminum. This made-in-the-USA head is Edelbrock's value leader. 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 . A borescope down the intake revealed lots of oil in the intake runners near the valves. Tech-Sheet. 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. 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 2. Theyre fully assembled with valve springs, retainers, locks, guideplates, studs, and seals. Cylinder Head. 010 runout and wouldnt come out of the head without a lot of force (we never took it out). DONT USE ANYTHING ELSE OR IT WILL LEAK. The heads alone are excellent fit and quality. Its main function is to seal the combustion chamber and provide a surface for the intake and exhaust valves. 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. The BOSS 302 heads used some of the biggest valves in the industry. Jul 7, 2011 I've an Offy Boss 302 tunnel ram that I'd like to use in a build and was wondering aside from the 4V cast iron heads, which aluminum heads will work with this combo. unfortunately I missed the return window due to illness. The 1968 Trans Am season was a disaster. THE NEXT ISSUE IS THE RECOMMENDED INTAKE GASKET FEL-PRO 1262. The Coyote V8 engine also concurrently debuted in the 2011 Ford F-150. Edelbrock E-Street cylinder heads are just the ticket. Original aluminum Boss 302 valve cover brackets for the spark . It was a world beater and symbolic of the end of the classic muscle car era. But the springs they come with are for a hydraulic roller cam. Besides the hemi-style heads themselves, the benefits of this new setup are many: For instance, a deck thickness of 0.7 inch to encourage safe use of power-adders, and full water jackets for proper cooling. But thanks to all of your responses this is not for me! Would modifying the heads bring down the value of the heads? Not the 2012-13 Coyote DOHC BOSS, but instead the genuine pushrod original from an era when Ford did the unthinkable repeatedlyand won! 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. Cast from prime A356 T6 aluminum, these "Z" heads from Ford Racing were designed using solid modeling technology. What cam specs and static CR? These aluminum heads are assembled with the perfect match of components for outstanding, trouble-free performance. While the tunnel port wasnt a complete success, thats how the Boss heads came to be. If this becomes a bit more subjective by adding in power (and why wouldn't you? These are perfect for the low compression big blocks of the mid to late 70s. The 4-bolt caps can be seen here. These ford flathead cylinder heads feature original edelbrock script logo design for fords and mercurys. The rocker studs are 7/16, not 3/8. They still have classes? Just A Taste is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. I am building a budget 440 RV motor that should be a monster street tire smoker for under $3000. 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. 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. As fitted to the Boss, the heads feature steel spring seats, screw-in rocker studs, pushrod guide plates, and adjustable rocker arms. Do 302 cylinder heads increase RPM? Ford engineers took the new 351 cylinder head and modified it to work with the Tunnel Port block. Renegade Street. They show to be suitable for the 221-302 Ford Small Block. Pic 2 is a spot next to a water port on the intake surface where it looks like the facing tool tilted some. Ford took on the world with the GT40 supercar. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. I passed over a different set of heads at the recommendation of my machinist. Fords classic 1969-70 BOSS 302 engine was a bold step forward after a miserable season in 1968. It was the most expensive of all the heads we tested. I used them with a Comp Cams 274XE cam and a QFT 600cfm carb. The Tech was nonchalant about this and stated these are a lower end part. 154-3701: SB Ford Boss 302 12pt Head Bolt Kit. edelbrock. The heads are a direct replacement for previous Twisted Wedge heads and work with all Twisted Wedge specific pistons. Aluminum heads are affordable, lighter and will make more power. Hack said: The size of 302 valves has varied a little in some performance versions over the years. 015 AND THE REST WERE. "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. 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. It was honestly a guess on my part and the Tech had no additional information or opinion to offer. Revised cooling system passageways Siamese bore with drilled coolant crossover holes (Except on M-6010-B302BB ) Increased bulkhead material Street Cruiser Cylinder Head. I think that a race head is available through someone that is all aluminum. Im looking for three Ford Cleveland 4V engines. Other than this the heads flow nicely on the street. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. ONE WAS OFF BY. Have a 70 351 4v stored 25 yrs 50 k miles complete minus carb dist has manifolds 1800. never lube the seal lip ? Truth is, a factory original Boss 302 is happiest with a 600 to 650 cfm Holley. Max effort class rule stuff runs over $2K. would love to return this old jalopy back!!!. First of all. 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. supershifter2 :shocked: :shaking: < :bs: ! At idle when vacuum is the highest the valve guides leak lots of oil into the intake. Im looking to build an engine that produces 300ish hp. The Edelbrock #5073 E-Street cylinder heads are designed for use with 1955-1986 Small-Block Chevy applications. Was running 850 dbl pump Holley with 4:56 gears, and I was running 12:20s at over 112 mph in the quarter. 2023 Power Automedia. ), then the second-least-expensive headsthe Edelbrock E-Street headsreally begin to stand out. Have you got the intake? Next, we test a low-rpm cam and a high-rpm cam in the same engine to demonstrate the power differences. Generator stud kit for 1938-48; use #8506. We evaluated each head on the flow bench, average overall power, and we calculated average horsepower-per-dollar. The Good and Bad of the head bolts on the SBF is that their are only 8 of them. pulled heads out of box, one head was in very nice shape, ready for service. BluePrint Engines stand in front of the class, offering both performance and cost-conscious enthusiasts a powerful alternativeMuscle Series cylinder heads. The intake valves all have. 1970 Fastback (to be finished outside as a Boss 302 tribute), thanks for all the responces! Pontiac was the outlaw division. I have a Eldabrock Performer intake,msd distributor and 6al box and a 61mm bbk throttle body. We will admit to you our results on the dyno were disappointing304 horsepower and 288 lb.-ft. of torque. The Boss 302 and 351C-4V head casting are the same except for a minor difference in water passages. Stroking an engine is not going to reduce your engine rpm. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. Bill Mitchell Products BMP 087510 - Aluminum Engine Block Ford Small Block 302 Mains, 8.200 Deck, 3.995 Bore, Billet Caps. extreme amount of burrs left all around the rocker shaft mounting pads. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more!