Maximum output for less money!. supershifter2 :shocked: :shaking: < :bs: ! In my 70 years of fooling with cars, we always had a formula. If weight is a consideration, keep in mind that these iron castings weigh considerably more than the rest of the aluminum heads. This minor tune-up would really improve the flow curve and add a measurable amount of torque. 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. It was honestly a guess on my part and the Tech had no additional information or opinion to offer. You'll notice that we attenuated the horsepower graph to include just the power curve between 4,000 and 6,200 rpm. This is where you must spend the money. 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. Yates? NOS 1969 1970 Mustang Boss 302 speedometer. BluePrint Engines Ford 302 C.I.D. Very nice , Made in USA quality and same price as off shore heads. Crate Engine, 302 C.I.D. But as others have mentioned there are modifications that must be done to make it work. Small Block Ford Head Torque Sequence | GTSparkplugs The drag strip in my area doesn't have any classes. I am through with their products. [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. The Cleveland heads can fit a 302 with the appropriate water passage mods and shouldered bolts to compensate for the bolt hole difference. Ford engineers took the new 351 cylinder head and modified it to work with the Tunnel Port block. Keep the RPMs under 5,500 and valve lift is more like. Roush? Help keep from being nose heavy. Im trying to leave this pretty much as is, until I get a few good drives in. The BOSS 302 Registry is not affiliated with the Ford Motor Company. Would modifying the heads bring down the value of the heads? 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. They'll work but have you got the Boss heads? Aluminum. 02 intake/1. stock rebuild,. 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. 2005-2014 Mustang Engine Guide | Steeda (BOSS) There is a lot he did to this engine, if you're interested but he kept the orig. I was going to have my reconnecting rods reconditioned with 5/16 arp bolts. 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. I have not been able to specifically identify because the stamp on corner does not mach up with what it should be. 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. The Ford, however, made a peak horsepower number of 374 horsepower at the same 6,700 rpm as the Chevrolet, and again, had the same peak-torque RPM as the Chevy, but made slightly less peak torque, at 324 lb-ft. Nevertheless, for a street engine, this head delivers excellent midrange power. They will outperform many of the average aluminum heads. Using the native mouse is awkward. Hack said: The size of 302 valves has varied a little in some performance versions over the years. Ford Performance 289/302/351W Aluminum Cylinder Heads - JEGS They cut the center two chambers from three Boss 302 heads then welded them together to form an inline six head that bolted on a 300 block! Every time I put a bigger carb on it, it ran faster. What I have found out so far, the engine runs. Ports 2.38" x 1.68" C9ZZ-9424-C. C9ZE-9425-A . The combustion chambers are filled with a 2.150-inch, 7mm-stem titanium intake valve, and a 1.60-inch, 7mm-stem titanium exhaust valve. The darned thing was rabid dog fast. Assembled. They show to be suitable for the 221-302 Ford Small Block. LOOKS AND PERFORMED GREAT. BluePrint Engines HP9009: Cylinder Head, Assembled, Aluminum, 60cc Combustion Chamber, Square Port, Ford, 289, 302, 351, Stud Mount, Each Welcome to a new class of high performance cylinder headsBluePrint Muscle Series! The connection with metered networks (or connecting to your phones hotspot) appear to deteriorate over time, and causes this error. The heads were to big for a 351CLEVELAND. 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. 0:1 on blocks with a 3/16 base relief (stock bore and stroke). 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. I had 90 runs on an original Boss 302 in a 70 Mustang. And the reality is, they did, in modified trim the way they were raced in the Trans-Am series. We used Comp roller rockers for the remaining heads to level the playing field, but if you are considering a set of these heads, be aware that the rockers and fulcrums need to be considered as well. Was running 850 dbl pump Holley with 4:56 gears, and I was running 12:20s at over 112 mph in the quarter. stud kit is of poor quality everything else in my order was good quality. The runners are as cast and a bit rough. Classes? THe new heads will have the same bolt-pattern as the original 6. But the springs they come with are for a hydraulic roller cam. When the vacuum is high, the intake is sucking oil through the valves. See it here: yes its ben done. http://forums.vintage-mustang.com/vintage-mustang-forum/721154-1970-mach-1-h-code-build.html. Very limited suppliers of flathead parts always look to speedway for my hotrod items. They use a Cleveland style quench chamber and standard 302 Boss/351 Boss/351C/351 SVO valve train parts (will accept 2.19"/1.71" valves). 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. 4V. if you have over. World contributed the lone cast-iron head to our Ford small-block test. I have a Eldabrock Performer intake,msd distributor and 6al box and a 61mm bbk throttle body. It didnt conform to corporate protocol and invented the muscle car in its 1964 GTO. 351 cleveland heads on a 302 | Hot Rod Forum 154-3607: SB Ford 289-302 standard 12pt Head Bolt Kit. Since the Windsor block was already a thing, the Blue Oval team decided to fit a set of Cleveland style heads to the short-block and create the Boss 302. 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. Expensive mistake. Then Ill be looking for upgrades. For use only with Special heads . No problem coming off corners at low rpm in higher gears and the pull in the higher gears on top is amazing for what I paid for them. [IMG]http://home.pacbell.net/kketell/USAFlag2.gif[/IMG][IMG]http://a8.cpimg.com/image/56/2C/8548438-4e05-00C8003F-.jpg[/IMG]. Opens in a new window or tab. He stated he spent over $10,000 back then. The cam featured 290 degrees duration and .477 in (12.1 mm) of lift. 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 It's all bracket racing. I simply cant believe this is all youve got. 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. 300 HP wouldn't be far off. 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. Its main function is to seal the combustion chamber and provide a surface for the intake and exhaust valves. 030 shim. 1969 mustang fastback boss 429 351 race car front end. Theyre fully assembled with valve springs, retainers, locks, guideplates, studs, and seals. 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. los angeles auto parts "sbf" - craigslist sbf 302 aluminum cylinder heads. Bought these and compared to the other (PC). See the top reviewed local exterior and siding contractors in Hohenthann, Bavaria, Germany on Houzz. This is my first engine build, let me know if Im doing it all wrong. TRW developed these pistons and suppled Ford with them for both racing and production engines. . It's important to note that this was the only head in our test that required its own separate valvetrain. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The supplied ones are generic and poor fitting. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4in. Cylinder heads are available fully assembled or as bare castings. ARP - The Official Site | Ford - Small Block - Windsor Kits 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. If this becomes a bit more subjective by adding in power (and why wouldn't you? Boss 302s did indeed have 1.73 ratio rockers from the factory. would love to return this old jalopy back!!!. Rugged, ribbed internally and externally, with a large water capacity and excellent breathing characteristics. 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. Top Rated Seller Top Rated Seller. Is it the 69 or 70 Boss 302 head that's more streetable? These features improve an engines efficiency, resulting in more horsepower and torque and improved mileage potential. For Use w/289/302/351 Windsor-Style Engines. quick fuel 650 performer rpm intake these heads smallest trick flow cam. This provided more room for larger valves instead of the standard side-by-side arrangement. The Boss 302 had been built using a Windsor 302-cid engine, but then Cleveland heads had been added to the block due to their larger ports and valves. Moving to the Blue Oval, we see that they went with a milder profile. Always interested in how things work, he enjoys sharing his passion for automotive technology with the reader. 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. Boss 302 -- The Ford V-8 Engine Workshop - Elaine Walker I just got a block that is 289 .30 over and I wanted to reuse my pistons I think they are sealed power 7006p (obsolete now). Dimensions in Inches (LxWxH): 24.1 x 24.1 x 8.7. After idling for a couple of minutes the engine will start smoking horribly. First of all. Im looking for three Ford Cleveland 4V engines. The BOSS piston was a unique item, configured to use the 289HP rod with the 302 stroke. 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. 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. Aluminum heads are affordable, lighter and will make more power. Generator stud kit for 1938-48; use #8506. Had to mill out some (- one hour with a Dremel), to get my stock distributor clamp to fit. If we've muddied the waters a bit, it's only the result delivering more information on the way to a decision. Where in the world did you come up with the "347s are not reliable"?. Pair. on a brand new set of heads. The BOSS 302 engine could use better cylinder heads with right-size port and valve sizing in a set of Trick Flow cylinder heads and a more compatible roller mechanical camshaft. But for the rest of us, choosing a cylinder head might be a complex algorithm of price, power, brand loyalty, ease of installation, head bolt size, and maybe even shoe size if you're that compulsive.