boss 302 aluminum heads

When you do that, you can see that the TFS head did substantially better than all the other heads above about 4,400 rpm. in 1969 with Doug Durham and me ,TED FORDMAN EHRHARDT who took a new Boss 302 short block apart and checked all specs. JavaScript is disabled. 1.290 in Spring. The winner in this evaluation is almost always the least-expensive head just because of the way the math formula works. . The RHS heads come out of the box with a very nice-looking casting, and back that image up with respectable performance. The BOSS 302 heads used some of the biggest valves in the industry. $ 5,595.00 Learn More. Those of you who understand the BOSS 302 know Ford fitted these engines with a 780 cfm Holley but not necessarily because thats what they needed. This combo has been dynod at 460-ish hp at 5000 rpm and 550 ft lbs of torque at 2000 rpm. Cylinder Head 190cc Assembled. 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. Some of the guys were running ford 300 six cylinders with good success. Aluminum Block Aluminum Heads - Subtract .012? Fords great success with its powerful V8 engines is legendary. The Twisted Wedge heads also had the strongest horsepower curve above 4,000 rpm of all the heads tested. for use w/ Special Intake. 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. IF YOU DO THIS BE SURE TO USE PERMATEX #2 ON THE INTAKE STUDS. What type of heads fit a Boss 302 block? The heads offered an excellent midrange power curve, behind only the Twisted Wedge casting between 4,000 and 5,500 rpm. You are better off buying model 5023 with 1. stud kit is of poor quality everything else in my order was good quality. No mention of those holes in the instructions. Street Cruiser Cylinder Head. pulled heads out of box, one head was in very nice shape, ready for service. 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. For a better experience, please enable JavaScript in your browser before proceeding. SB Ford WP Man O'War iron block/Man O'War aluminum head Head Bolt Kit. I assumed thats how they went and I also used the end seals. 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. The real question is, what do these factory motors make, and how do they compare to each other?. 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. These aluminum heads are assembled with the perfect match of components for outstanding, trouble-free performance. Alum. Click to expand. Ford Aftermarket. Small-Block Ford Aluminum Cylinder Heads - MotorTrend 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. Above you see a casting with a D1ZE part number. Boss 302 heads are unique.No other heads will work without some changes. Im just hoping the new Edelbrock intake that arrived yesterday is better than these. We apologize for the inconvenience I would guess Im somewhere around 375HP @ the flywheel in this build. We had a grad student at UMR custom design his own crossflow head for that engine and the entire thing was CNC'd from one piece of aluminum. 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. Bolt-On Hemispherical Heads for a Small-Block Ford - Street Muscle Is it the 69 or 70 Boss 302 head that's more streetable? The Tech was nonchalant about this and stated these are a lower end part. To clear up a few questions, the combustion chambers are 60cc, not 64cc. Any who, this is a work laptop, and it started out pretty fast, but over time, it eventually slowed down. Install the gaskets with the raised seal towards the head and it will fit the ports much better. 188cc Intake/63cc Exhaust Port Volume. This engine was built in the 80s by someone with way to much money. They show to be suitable for the 221-302 Ford Small Block. 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. Reportedly designed by a drag racer and tinkerer named Sherman Sligh, the Boss 300 is engine design gone mad. Here you can see exactly where each engine outshined the other, and by how much. It was honestly a guess on my part and the Tech had no additional information or opinion to offer. OK, you can do pretty well on a budget. It had a description amd Alan Johnson Cylinder Heads listed as the vendor and contact #805-922-1202. And the reality is, they did, in modified trim the way they were raced in the Trans-Am series. You'll notice that we attenuated the horsepower graph to include just the power curve between 4,000 and 6,200 rpm. 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. It collects next to nothing. Get big power on a small budget with BluePrint Muscle Series cylinder heads! I think I have seen afrermarket heads but cannot rememmber where. That means 305 maximum cubic inches. 2023 Power Automedia. 351 cleveland heads on a 302 | Hot Rod Forum 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. These heads are screaming on the 302 I just built and are great quality. Revised cooling system passageways Siamese bore with drilled coolant crossover holes (Except on M-6010-B302BB ) Increased bulkhead material The compression ratio is 8. It should be in the product description and specs. Luckily I had the tools to put them back on but this could have been a issue and made them not bolt on heads. Back in the day, there was all kinds of speculation that they made more than 400 horsepower. Edelbrock heads are available in two different versions, with either 1.94- or 2.02-inch intake valves. The TFS heads appeared to be the big dog in the room when it came time for testing. The Good and Bad of the head bolts on the SBF is that their are only 8 of them. Other Intakes >> Application. Fords incredible 1969-70 Trans Am BOSS 302. 64cc Volume. This new design offers a 25-50 HP increase over current Cobra Jet heads, depending upon displacement and camshaft. 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 E-street came in second in peak horsepower and a very close third in average horsepower and torque. I thought the bolt pattern was the same, that is what helped to make the swap work. which de-stroked it. No drilling is required since it appears they updated the manufacturing process to eliminate this need. 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. Combined with the big bore and short stroke, everyone thought these things wanna rev. The reality is that the head flow and dual-plane intake really limited the RPM.. If I were to shop for a personal laptop, Id never consider this laptop based purely on what it looks like. Even the stock cam should peek higher than 5500 rpm. BluePrint Engines Ford 302 C.I.D. 1969 1.90/1.60 in Valves. So, a big head, lots of camshaft, an aluminum intake, and a Holley four-barrel. Generator stud kit for 1938-48; use #8506. They dropped off after that. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! The BOSS 302 heads used some of the biggest valves in the industry. 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. Its all a win,win. the engine was called a "boss 289" not a clevor, a clevor was a 351W with 351C heads and a custom intake. Top Rated Seller Top Rated Seller. Pontiac was the outlaw division. Above you see a casting with a D1ZE part number. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Ford engineers took the new 351 cylinder head and modified it to work with the Tunnel Port block. Flat cylinder heads have large water capacity and excellent breathing characteristics. One thing I found particularly awesome about these heads is the spark plug holes and threads. Raced and owned quite a few Boss 302s. Enter Fords development of an all-new 351ci engine with poly-angle valve heads and tight-fisted wedge heads destined for a 1970 introduction. Don't know what the compression ratio would be with those pistons you mentioned but don't forget the HI-PO 289 produced 271 horses with 10.5 compression. 09 of shims installed so they look good. 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 . For high-performance's street and competition, our dual-plane design makes outstanding power from 1500 to 6500 rpm. These heads are coated with assembly lube out of the box. 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. The BOSS piston was a unique item, configured to use the 289HP rod with the 302 stroke. The Ford head uses a net-lash design that makes the valvetrain non-adjustable. Throw a blue oval flag over the RHS, Edelbrock, and Ford heads, and the performance is very similar. [IMG]http://www.dslextreme.com/users/jbooth/sidenew1.jpg[/IMG][IMG]http://www.dslextreme.com/users/jbooth/enginenew1.jpg[/IMG]. You will certainly feel that in the car. 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. I have certificate for it. There are still 6 other steam holes not present in the 5073 head that are in the 350 block circa 1972. detroit metro auto parts "302" - craigslist. 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. This particular evaluation only works, however, if lowest cost is the highest priority. So get comfortable, slip on your Ford-colored glasses, and hang on. That may or may not make your ultimate choice any easier, but if so, you can thank us later. 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. Im looking for three Ford Cleveland 4V engines. 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. 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). D. Hearne is on the money as usual. The 302 Tunnel Port already had a terrific four-bolt main block and steel crank along with beefed up C3AE 289 rods and special pistons designed for the Tunnel Port heads. The Chevrolet used a 1.50:1 rocker, while on the Cleveland head, they used a 1.73 ratio. Opens in a new window or tab. For use on pre-pollution controlled vehicles only. We will safeguard your e-mail and only send content you request. Boss 302 Heads | HQ Automotive Service & Parts This made-in-the-USA head is Edelbrock's value leader. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. Pair. searching. Cast from prime A356 T6 aluminum, these "Z" heads from Ford Racing were designed using solid modeling technology. (Image/Jim Smart) Although these are 1969-70 BOSS 302 heads, they []. 8l F250hd efi roller engine? Fig. Condition does not matter! Index your plugs on these engines. Chevy used higher compression and lots of camshaft, combined with mild cylinder heads. 125 of silicone is likely to blow out. They'll work but have you got the Boss heads? This includes 260, 289, 302, Boss 302, 351W and related variants. Ford Racing teamed up with Jon Kaase to redesign their 429 Cobra Jet cylinder heads, and the results are these Super Cobra Jet heads. Hack said: The size of 302 valves has varied a little in some performance versions over the years. The factory 780cfm carburetors are really, really expensive, and we didnt want to spend a few thousand dollars on a carburetor, explains Holdener. That would probably have been the only intake available to work , at that time. Turbo 300-inch Ford can bang off 10.90s at 120 mph. 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. Prices listed are from the story's original publish date, February 1, 2013. 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. The term refurbished was definitely stretched here: the screws are different colors from the black casing, the bottom rubber footers are looking like they have decayed so that the laptop wobbles, the side has a port that was left wide open with a broken/cracked piece and then when you try to open it, the screen side sticks to the keyboard side like it has a gummy residue of some sort on it. I personally know several guys with Boss 302s that have been secretly stroked to 347. Heads are sold individually. Did you get them at a Chevy garage sale? This one appeared great at first use and for a couple of months. These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. Also, the visual aesthetic is pretty plain, and the laptop doesnt have a sleek feel to it. The 300 and the 240 are identical blocks,the heads are different and the 240 is basically a destroked 300 so it will rev a little higher. I passed over a different set of heads at the recommendation of my machinist. 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). refresh the page. Ford Small Block Engine Data & Specifications | CarTech they mandated a 5.0-liter displacement limit. It came with aluminum heads that were way too big for the cam and my use. The connecting rods and crankshaft are made of forged steel, and the heads are aluminum with roller rocker arms. These new aluminum hemi heads will bolt directly to any small-block Ford from a 289/302 all the way up to 351W as well as Cleveland engines. This is the Head Bolt Torque Sequence (Pattern) for Ford's small block. Using the native mouse is awkward. It took about 500 honest HP to break into the 11s with a little bit heavier car than your mustang.