So howd they stack up? 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. Both engines are solid flat tappet cams, and the Chevy especially responded to changes in the lash. 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. Gurney Eagle : Gurney Eagle race heads : Application. As I recall from articles way back, this is an expensive process. It had to sneak the GTO in under the radar of upper management. 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. Peak power was good, at 349 hp, and torque is also reasonable. Edelbrock E-Street cylinder heads are just the ticket. This educational content is not intended to be a substitute for professional advice. Do the torque in 2 steps, first just hand tight, second with the torque wrench. How can you call it racing if you're putting the brakes on before the finish line? 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 Dells are ok computers. A factory high-rise dual-plane intake manifold was used, with one part not period-correct. First of all. And you'd have to replace the factory two-piece valves which are known to come apart randomly for no reason. The Cleveland heads can fit a 302 with the appropriate water passage mods and shouldered bolts to compensate for the bolt hole difference. Also, the visual aesthetic is pretty plain, and the laptop doesnt have a sleek feel to it. All Rights Reserved. Ford had and did a great job with Ford Motorsports programs which we were in . The brute 427 FE Series big block that won Le Mans also reigned supreme in limited production 1964 Thunderbolt Fairlanes in NHRA competition. Top Rated Seller Top Rated Seller. I was wondering how these heads would work on my 97 5. It will have screw-in core plugs and a four-bolt main block if it is a Boss 302. 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. We got more than 450 HP on Fords dyno when we blew right rear tire and it took out Ford training board. One side opted for mild lift and more duration, and the other went for more lift and milder duration. Was running 850 dbl pump Holley with 4:56 gears, and I was running 12:20s at over 112 mph in the quarter. "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. There was dust and paper bits all over the keyboard and screen!! In 1970 the Boss 302 was a Camaro killer, it could go 0-60 mph in 6.0 seconds. The 170/200/25 are the same block design, with the 250 having a taller deck height (so you can't easily make a 250 from a 200). The RHS headsproduced the next-closest average horsepower and torque, with the Edelbrock and Ford heads very close behind. That would probably have been the only intake available to work , at that time. Currently working on a 1970 Mach 1 project. Future availability is unknown. The holes are just big enough for the spark plug socket, which guides it in perfectly. So, a big head, lots of camshaft, an aluminum intake, and a Holley four-barrel. The biggest difference between the two engines is the cylinder heads.. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. As the 1968 Tunnel Port engine turned into a disaster, someone at Ford Engine Engineering got the idea to put a set of Cleveland heads on a Tunnel Port block and thus was the beginning of what would become the BOSS 302 engine. What looks like parting lines are huge in some places, one exh runner has a stick of Aluminum protruding into the runner (pic 1). I recommend purchasing ARP studs and guideplates for perfect rocker alignment. Peak power numbers are always fun to throw around, but car-crafters are also very astute at determining what all that power will cost. 035 (which I am using). What? Needless to say the head kicked ***. Theyre fully assembled with valve springs, retainers, locks, guideplates, studs, and seals. 546hp @5600 rpm also had 630 ft-lbs torq@ 4400 rpm. Im just hoping the new Edelbrock intake that arrived yesterday is better than these. in 1969 with Doug Durham and me ,TED FORDMAN EHRHARDT who took a new Boss 302 short block apart and checked all specs. Any advice would be greatly appreciated. You'll notice that we attenuated the horsepower graph to include just the power curve between 4,000 and 6,200 rpm. Better compression then stock, better breathing then stock. The Twisted Wedge heads also had the strongest horsepower curve above 4,000 rpm of all the heads tested. Hack said: The size of 302 valves has varied a little in some performance versions over the years. Alum. A forum community dedicated to hot rod owners and enthusiasts. Get big power on a small budget with BluePrint Muscle Series cylinder heads! The 300 block may have a slightly taller deck height than the 240. You would need a Boss 302 manifold for the intake. 0:1 on blocks with a 3/16 base relief (stock bore and stroke). Combine Edelbrock quality with excellent power and a highly competitive price, and the E-Street Edelbrock heads strike us as an excellent choice. Alum. 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. The 363 uses FRPP Z2 cylinder heads. Don't know if it's still good. And the reality is, they did, in modified trim the way they were raced in the Trans-Am series. THE FIRST SET I PURCHASED WERE LIKE THIS AND I INSTALLED WITHOUT CHECKING THEM. These heads are coated with assembly lube out of the box. The 240 and 300 are basically the same engine -- based on the same block design anyway. 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 BOSS piston was a unique item, configured to use the 289HP rod with the 302 stroke. These lightweight aluminum heads bolt up to your small block Ford and feature 190cc intake/60cc exhaust runners, 60cc combustion chambers, and 2. Im trying to build my 289 on a budget and saw a pair of Boss 302 heads online for $400 and thought why not. Im looking to build an engine that produces 300ish hp. Buy It Now +C $186.98 shipping estimate. THe new heads will have the same bolt-pattern as the original 6. The intake ports flow 382 cfm at .750-inch of lift. These ford flathead cylinder heads feature original edelbrock script logo design for fords and mercurys. Im sure you had over 400. Ford 260-289-302 Firing Order; Ford 351C 351M 400M Firing Order; Ford FE Firing Order; Ford 429 and 460 Firing Order; Chevy SB and BB Firing Order; A borescope down the intake revealed lots of oil in the intake runners near the valves. IF YOU DO THIS BE SURE TO USE PERMATEX #2 ON THE INTAKE STUDS. 88 DNA Motoring LEPOW-038 Aluminum Bare Angled Cylinder Head [For Chevy SBC 302/327/350/383/400] 3 Performance Distributors Keeps The Spark Alive With SOS, A New Diesel Piston That Increases Power And Reduces, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop, Melling Offers New Timing Kits for Ford 4.6L and 5.4L SOHC, Reborn Retro Blower Packs Positive-Displacement Power For Fox, EngineLabs Tool Of The Month: Summit Racing Lb-In Torque, Why You Should NOT Emissions Delete Your Diesel, Can A Cold Air Intake Really Help Your Trucks, Ask The Expert: We Want Your Questions For Canton Racing, The Answers: DeatschWerks Responses To Your Fuel System, SEMA 2022: GEARWRENCH Leveled Up With Distinct Quality Hand, EngineLabs Tool Of The Month: Summit Racing AN Wrench, HOLY SHIP! The Boss used a mild camshaft, mild compression, and lots of head flow, Holdener says. Chevy used higher compression and lots of camshaft, combined with mild cylinder heads. on a brand new set of heads. 015 AND THE REST WERE. 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. That may or may not make your ultimate choice any easier, but if so, you can thank us later. 030 shim. Assembled. 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. The Cleveland style head featured a staggered, canted valve arrangement. 64cc Volume. Very nice , Made in USA quality and same price as off shore heads. 1970 Flashing in ports was unacceptable. Other Intakes >> Application. Well I have a 1977 copy of Pop. 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). The DZ 302 has a reputation for being a high-RPM screamer, and the camshaft is definitely part of that. Greg has spent eighteen years and counting in automotive publishing, with most of his work having a very technical focus. reach with flat gasket seat. Camshafts were quite similar to the 289 HP. . Ultimately, the best cylinder head for your Ford 302 will depend on your specific goals and needs. Ford Performance Cylinder Head X2 Street. A big head and lots of airflow means lots of power. Best heads for the price. Cylinder heads casting ID decode for 260 289 302 351 390 406 427 428 429 460FE Boss Shelby. Fig. In the 1960s, Ford was an outspoken car company, much as Pontiac Division was within General Motors. A tad shorter then a 351W but a little wider due to the size of the heads. The Chevrolet used a 1.50:1 rocker, while on the Cleveland head, they used a 1.73 ratio. No more dyno there. These heads are really impressive!!!!!! They are very capable iron heads. Renegade Street. And like the others mention, it was C.J. ), then the second-least-expensive headsthe Edelbrock E-Street headsreally begin to stand out. 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. 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 think I have seen afrermarket heads but cannot rememmber where. These features improve an engines efficiency, resulting in more horsepower and torque and improved mileage potential. I am running them on a 302 and purchased this set for a 351 build. However, it also led to a lot of upset Bowtie fans for some reason. You are better off buying model 5023 with 1. If this becomes a bit more subjective by adding in power (and why wouldn't you? Budget iron can run $1195.00 for an easy 500 + hp but any more needs more valve area. Original aluminum Boss 302 valve cover brackets for the spark . I really liked my 69 428 CJ. 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. Prices listed are from the story's original publish date, February 1, 2013. 154-3702: SB Ford 302W 12pt Head Bolt Kit. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! They used the 3 center sections of the heads. World contributed the lone cast-iron head to our Ford small-block test. 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 . But thanks to all of your responses this is not for me! This conversion was well documented and fairly popular when aftermarket heads were not available. Classes? This provided more room for larger valves instead of the standard side-by-side arrangement. Would modifying the heads bring down the value of the heads? These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. Cast from prime A356 T6 aluminum, these "Z" heads from Ford Racing were designed using solid modeling technology. Up top, are a set of Ford Motorsports C302 cylinder heads, which have been worked over by Roush-Yates Racing. This 302 was in a F250 so I have to find the proper oil pan to fit the 83 foxbody, and proper fit for the oil dipstick entering the oil pan. 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. Fits factory 1979 - 1995 Mustang oil pan with custom oil pickup tube, part number: M-6622-BOSS302 NASCAR inspired front oil feed on both lifter galleys. So your wrong. ---185cc Aluminum Heads for SB Ford --- 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. The Ford had slightly less compression, at 10.5:1, so out of the gate, Chevy had a little bit of an advantage.. Great bang for your buck with these heads. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines. The 4-bolt caps can be seen here. Condition does not matter! Assembled. Works with most standard components. Suddenly these heads arent so appealing. BluePrint Engines Ford 302 C.I.D. Not too much carb for this engine. the engine was called a "boss 289" not a clevor, a clevor was a 351W with 351C heads and a custom intake. 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 302s fuelie heads. Wait 1.6 rockers? Part of the difference in valve lift numbers between the two is the rocker arm ratios used from the factory. When we tore apart the first head it was full of shavings and one of intake valves was super tight and one of the exhaust valves was bent w/. 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. Better than fighting with iron cylinder heads. 09 of shims installed so they look good. 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. 22-25 Ft/Lbs - Iron Heads. I have a 1969 Boss 302 original however I need to reassemble it I originally bought ARIES 10:1 forged pistons I believe 30 over . Stroke that thing. Yes you can bolt the 351C heads to a 289/302/351W block. Whenever youre running a flat tappet cam, always use a zinc additive, Building Classic Ford 351 Cleveland Power. 1970 - D0ZE-6090-A or B. 8l F250hd efi roller engine? 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. Roush? Crate Engine, 302 C.I.D. 040 roller short block A little lope at idle but it pulls everywhere in the rpm range. 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. Both 1969 and 1970 302 BOSS engines will run great with a properly tuned 750 Holley. Reworking Cleveland heads I think would require reducing the size of some of the water passages and I unsure of the block clearance . Fords great success with its powerful V8 engines is legendary. Put on a 351w in a 1979 Tbird. 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. This made-in-the-USA head is Edelbrock's value leader. 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. 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. Required fields are marked *. Not even close to what I thought I should be getting in a brand new set of heads. I HAD TO CHANGE OUT THE SPRINGS FOR ONES WITH MORE PRESSURE DUE TO VALVE FLOAT AND I AM ONLY RUNNING AN E303 CAM. 60 exhaust valves. Be the first to rate this post. The cylinder head is bolted to the engine block and sits above the pistons. 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. Rugged, ribbed internally and externally, with a large water capacity and excellent breathing characteristics. That puts lift over .500 inch .514 according to our calculations, minus the lash, Holdener reveals. All in all, Im not a fan of this series from Dell. Aluminum Block Aluminum Heads - Subtract .012? The supplied ones are generic and poor fitting. Some additional 302 factory valve sizes: 69 Boss 302 intake 2.23 / exhaust 1.71. Are there any aftermarket heads for it? ONE WAS OFF BY. It didnt conform to corporate protocol and invented the muscle car in its 1964 GTO. 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. There is a lot he did to this engine, if you're interested but he kept the orig. pulled heads out of box, one head was in very nice shape, ready for service. It ran a regular head that was tweaked (either before the slicing or class requirement). Ford's legendary racebred Boss 302 engine remains one of the most significant high-performance power plants in the company's history. 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Thesecret to a long life stroker is to add wieght to the crank so you can exterally balance @ 28 oz. After a couple of good seasons of running competitively with the big blocks a couple of guys showed up with a custom head that consisted of two V-8 Ford heads that had a combustion chamber removed from each end and were furnace bronzed together in the middle. detroit metro auto parts "302" - craigslist. Truth is, a factory original Boss 302 is happiest with a 600 to 650 cfm Holley. . extreme amount of burrs left all around the rocker shaft mounting pads. It should be in the product description and specs. $1,692.99. Just my thought. 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. i knew a guy that put a set on his 65 shelby. (Image/Jim Smart) Although these are 1969-70 BOSS 302 heads, they []. The Mustang 5.0L Coyote engine has evolved into the Boss 302, VooDoo 5.2L, and the Predator 5.2L. Needless to say they began to really spank everybody and by the end of the season the six cylinders were out ruled. The E-street came in second in peak horsepower and a very close third in average horsepower and torque. Hate to tell you this but a BOSS 302 has Cleveland type heads. 030 AND 2 OF THEM WERE. 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. 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. For high-performance's street and competition, our dual-plane design makes outstanding power from 1500 to 6500 rpm. Twisted Wedge and Canted valve (TFS and C302b) in aluminum promote even better performance. This one appeared great at first use and for a couple of months. This is my first engine build, let me know if Im doing it all wrong. Guys if you want to make serious power. Any who, this is a work laptop, and it started out pretty fast, but over time, it eventually slowed down. They are also cast with combustion Experimental Part . Where in the world did you come up with the "347s are not reliable"?. Compatible with Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc Angled Plug Aluminum Bare Cylinder Head $238.88 $ 238 . they mandated a 5.0-liter displacement limit. Said to be "overvalved" for street performance. I figured the Boss would make peak power. 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. But there is absolutely something else wrong. Won't work with the 289 stroke. While it only had .480-inch of lift, that duration would really allow the RPM to climb. Pontiac was the outlaw division. 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.