What? 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. The F code 302-2V was made from 68-73. . These heads are screaming on the 302 I just built and are great quality. 45 degree spark plug wires work great with these heads. Something is very wrong with this, a blueprinted stocker should be in the 375-400 HP range. the second head had not been full deburred from the milling process. stud kit is of poor quality everything else in my order was good quality. Boss 302 heads are unique.No other heads will work without some changes. They'll work but have you got the Boss heads? It had a description amd Alan Johnson Cylinder Heads listed as the vendor and contact #805-922-1202. One thing I found particularly awesome about these heads is the spark plug holes and threads. These features improve an engines efficiency, resulting in more horsepower and torque and improved mileage potential. Enzo Ferrari, and others, were handed their backsides. Turbo 300-inch Ford can bang off 10.90s at 120 mph. Luckily I had the tools to put them back on but this could have been a issue and made them not bolt on heads. 500 max! Valves 2.02 / 1.55" . We started FORD Drag Club at Horn-Williams Ford in Dallas,Tx. 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. saving. 22-25 Ft/Lbs - Iron Heads. 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. 1.290 in Spring. I assumed thats how they went and I also used the end seals. I believe C.J. i drank a bottle of 10,000 rpm and thode a rod !!! While it only had .480-inch of lift, that duration would really allow the RPM to climb. 1970 Fastback (to be finished outside as a Boss 302 tribute), thanks for all the responces! I might like to put it back together this summer with your fluid damper a 600 holley carb and maybe your electronic distributor . I would suggest pulling the vavles and wiping everything down. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. We'll squeeze all of this into these few short pages, which means we have a long way to go and a short time to get there. reach with flat gasket seat. Any who, this is a work laptop, and it started out pretty fast, but over time, it eventually slowed down. E7 heads use 1.78 / 1.48 just like the 60s stuff. Bought these and compared to the other (PC). Great performance didnt notice any quality issues or burred edges when they came in. Cylinder heads are available fully assembled or as bare castings. Click to expand. A big head and lots of airflow means lots of power. A recent test of a prototype set of Hammerhead's castings bolted on a 427ci small-block stroker produced over 600 hp with a streetable hydraulic roller camshaft and 600 lb-ft of torque. For those who consider swirl a detriment to producing power this is a positive thing. Required fields are marked *. You will need the boss piston to go with the canted valves.. No. Well I have a 1977 copy of Pop. These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. Because they didnt allow destroking [of an existing engine design] initially, both companies had to build actual displacements of five liters, explains Holdener. 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. What type of heads fit a Boss 302 block? Brand New. Outperform many more expensive parts. The DZ 302 used a 1.5:0 ratio, while the Boss 302 head used a larger 1.72:1 ratio. 015 AND THE REST WERE. 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 At idle when vacuum is the highest the valve guides leak lots of oil into the intake. But thanks to all of your responses this is not for me! 045. This is my first engine build, let me know if Im doing it all wrong. Bill Mitchell Products BMP 087510 - Aluminum Engine Block Ford Small Block 302 Mains, 8.200 Deck, 3.995 Bore, Billet Caps. Would modifying the heads bring down the value of the heads? Other than that it was OK. IF YOU DO THIS BE SURE TO USE PERMATEX #2 ON THE INTAKE STUDS. 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. . This is where you must spend the money. The runners are as cast and a bit rough. We will safeguard your e-mail and only send content you request. "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. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. Factory was1.73 IIRC. THE FIRST SET I PURCHASED WERE LIKE THIS AND I INSTALLED WITHOUT CHECKING THEM. Using the native mouse is awkward. Once I pick the heads I was going to find a good cam for daily driving/ performance. 4V. 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. Especially for the price, I would buy them again in a heartbeat. Typical rebuild, headers, Competition solid lifter cam, 1.73 Crane roller rockers. 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.. Do the torque in 2 steps, first just hand tight, second with the torque wrench. 98 sold The stroke difference between the two engines amounted . stock rebuild,. I work in IT, so I know a good laptop/PC when I use one. 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 had 90 runs on an original Boss 302 in a 70 Mustang. 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 . A factory high-rise dual-plane intake manifold was used, with one part not period-correct. FORD MUSTANG 302 CYLINDER HEADS Pre-Owned $177.50 classicautoresto (4,195) 100% or Best Offer +$199.05 shipping Sponsored ARP 154-4206 Black Ford New Boss 302 w/351C heads 12pt hsk In Stock Ready to Ship Best Deals Fast Shipping Brand New $250.99 partshawk (68,956) 99% List price: $367.99 32% off Buy It Now Free 4 day shipping Sponsored The brute 427 FE Series big block that won Le Mans also reigned supreme in limited production 1964 Thunderbolt Fairlanes in NHRA competition. 125 of gap at the front and rear ends and you are running a blower or a turbo then I would suggest making some spacers to take up the gap on the ends because anything over. writing. . That was a surprise.. 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? It will have screw-in core plugs and a four-bolt main block if it is a Boss 302. Next, we test a low-rpm cam and a high-rpm cam in the same engine to demonstrate the power differences. Can you further help me with where to buy this? The store will not work correctly in the case when cookies are disabled. Other than this the heads flow nicely on the street. 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. 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. Crate Engine, 302 C.I.D. Yes you can bolt the 351C heads to a 289/302/351W block. Renegade Street. These Ford heads tied with the Edelbrock heads for third place in average torque and were extremely close to the RHS head's second-place power level. 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. And then it's gonna be HP you'll make, not a lot of torque. When it comes to the valve events, Ford and Chevrolet took two different approaches. 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). Tell ya what ,leave the ford enginrs to the ford guys, and you keep playing with that some ole cookie cutter bowtie garbage youre so used to. But the springs they come with are for a hydraulic roller cam. i knew a guy that put a set on his 65 shelby. OK, you can do pretty well on a budget. 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. So the induction system is kind of a toss-up. THE NEXT ISSUE WAS VALVE SPRING INSTALL HEIGHT. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. 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. The TFS head looks much stronger than the Edelbrock version above 5,500 rpm, but the maximum differential is only 13 hp at 5,900 rpm. The intake ports flow 382 cfm at .750-inch of lift. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Its useful for when you have a tight engine compartment and headers in a Falcon. Im looking to build an engine that produces 300ish hp. 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. $1,692.99. The BOSS 302 Registry is not affiliated with the Ford Motor Company. We evaluated each head on the flow bench, average overall power, and we calculated average horsepower-per-dollar. The winner in this evaluation is almost always the least-expensive head just because of the way the math formula works. Expensive mistake. This engine was built in the 80s by someone with way to much money. The 363 uses FRPP Z2 cylinder heads. He stated he spent over $10,000 back then. Pontiac was the outlaw division. More than 400 horses easy. 1969 Intake - 2.23 inches Exhaust - 1.72 inches. The wide and large port heads with staggered valve placement give the 302 H.O. The holes are just big enough for the spark plug socket, which guides it in perfectly. 035 (which I am using). 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. 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. The heads were to big for a 351CLEVELAND. . Pair. 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. The 240 and 300 are basically the same engine -- based on the same block design anyway. To complete the Boss, we added an Edelbrock Performer RPM intake, a Holley 750-cfm, mechanical-secondary HP carb, MSD distributor, and a set of open dyno exhaust headers, and we were ready to rumble. 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. D1ZE service block and aluminum rods. Index your plugs on these engines. The Coyote V8 engine also concurrently debuted in the 2011 Ford F-150. 030 AND 2 OF THEM WERE. We discovered this was a 1969-70 BOSS 302 head modified for use on a 351C. Sizemore, formerly of Preperation H fame, did considerable valvetrain developement and terrorized the former checvvy stronghold of I and J/Gas. 1.90/1.60 in Valves. 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. And like the others mention, it was C.J. The heads are Cleveland heads. 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. Have a 70 351 4v stored 25 yrs 50 k miles complete minus carb dist has manifolds 1800. never lube the seal lip ? Cover Autolite 4V casting D0ZX9B48-3 . 0:1 on blocks with a 3/16 base relief (stock bore and stroke). We learned on the first few pulls that we had too much carburetor with our 750 cfm Holley 4160 and too little camshaft. PRO1 170 Ford Tech Sheet - H30. unfortunately I missed the return window due to illness. That may or may not make your ultimate choice any easier, but if so, you can thank us later. 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. 165 cc Intake. Also, the visual aesthetic is pretty plain, and the laptop doesnt have a sleek feel to it. Single angle amateur valve job and it was pretty sad looking At this point I called edelbrock and they gave me the song and dance so I called Jegs and they issued a return. 185 cc Intake. They pull much harder through the midrange than the 351W heads they replaced on my 302 Ford. So it can already be made to haul. BluePrint Engines stand in front of the class, offering both performance and cost-conscious enthusiasts a powerful alternativeMuscle Series cylinder heads. 1/23 . These Ford cylinder heads all feature between 170cc and 180cc intake port volumes and offer excellent performance potential over even the best production iron 5.0-liter heads. Hate to tell you this but a BOSS 302 has Cleveland type heads. Im trying to build my 289 on a budget and saw a pair of Boss 302 heads online for $400 and thought why not. The Dart castings would have been the Iron Eagle versions, and the Pro Comps are affordable in aluminum. Age Group: adult. Actually, everything about these heads helps the little 302. 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. edelbrock. For the testing, Holdener put together a non-numbers matching replica of the DZ 302. They will outperform many of the average aluminum heads. Ford New Boss 302 w/351C HDS Hex Head Stud Kit. 02 intake/1. Stroke that thing. Does anyone remember the six cylinder heads they made for Bruce Sizemore. The BOSS piston was a unique item, configured to use the 289HP rod with the 302 stroke. either way, Im so thrilled with this product that im picking up the 205s for a fast engine build. Your email address will not be published. [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. They show to be suitable for the 221-302 Ford Small Block. 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. 2/22 . And the reality is, they did, in modified trim the way they were raced in the Trans-Am series. That means 305 maximum cubic inches. 1969 - C9ZE-6090-A or C
The factory Boss 302 did not have a deep sump pan although it did have a baffle in the sump, and yes it has 1.73 ratio rockers from Ford. Install the gaskets with the raised seal towards the head and it will fit the ports much better. The rocker studs are 7/16, not 3/8. Cast from prime A356 T6 aluminum, these "Z" heads from Ford Racing were designed using solid modeling technology. Im not sure what has happened to Edelbrock, but their quality control sucks. Today, the aftermarket lineup of Ford cylinder heads has plenty of castings from which to choose. I wanted to built a great runing, mild street motor around a stock sbf 302 short block. Ford Aftermarket. 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. The 69 and 70 F code 302's are rated at 220 bhp. They topped a 302 Windsor with the Cleveland -style heads, making the first Clevor. . We tried this formula to see what our basically stock BOSS 302 would do. Fig. 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. If you had the right pistons, you could use 351C 2V heads which are cheap and plentiful and don't have the low end port velocity issues 22GT described. I have not been able to specifically identify because the stamp on corner does not mach up with what it should be. The Ford head uses a net-lash design that makes the valvetrain non-adjustable. 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. The Edelbrock heads showed a little weakness in the midrange, something that could probably be rectified by adding a 30-degree back-cut to the intake valve. You have to rev it to the moon to really make any power. Prices listed are from the story's original publish date, February 1, 2013. 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. Wait 1.6 rockers? If it is, then you know what you need to do. reading. 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. 2023 Power Automedia. Are there any aftermarket heads for it? 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? Both engines are solid flat tappet cams, and the Chevy especially responded to changes in the lash. I installed these on a factory 302 HO in my 94 Mustang. Original aluminum Boss 302 valve cover brackets for the spark . 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. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Don't know if it's still good. Peak power numbers are always fun to throw around, but car-crafters are also very astute at determining what all that power will cost. Experimental Part . 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. The best aluminum heads for 302, without a doubt, have an effect on the vehicle's RPM. You may also cruise the online auctions for a vintage 5.0L roller block (F1AZ-6010-B). Ford has always been a car company that dared to go where no automaker had ever gone before. They are also cast with combustion instead of 50 oz. The body is lowered 11 mm (0.433 in) up front and just 1 mm (0.039 in) in the rear to give it a more raked stance designed to recall the original. That's what the TFS Twisted Wedge heads did here. He used a correct Duntov camshaft and set the lash a little tighter than the original spec, at .020-inch. Needless to say the head kicked ***.