boss 302 aluminum heads

The Ford is specd out at 228 degrees at .050-inch lift, but lift was a different matter. 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. Max effort class rule stuff runs over $2K. 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. sbf 302 aluminum cylinder heads. Like with standard 4V heads, you would have to machine the tops of the heads to accept screw-in, adjustable rocker studs. can I send the stud kit back? 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. 1970 We tried this formula to see what our basically stock BOSS 302 would do. Age Group: adult. There is a lot he did to this engine, if you're interested but he kept the orig. . 02 intake/1. searching. 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. . If you are looking for a set of World aluminum heads, you can find them at Bill Mitchell Products. My first work Dell was super slow and sluggish, so I was sent a new one. Build your own custom newsletter with the content you love from EngineLabs, directly to your inbox, absolutely FREE! 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. The Cleveland heads can fit a 302 with the appropriate water passage mods and shouldered bolts to compensate for the bolt hole difference. if you have over. The Fora platform includes forum software by XenForo. No stick hole up top. Tech-Sheet. http://forums.vintage-mustang.com/vintage-mustang-forum/721154-1970-mach-1-h-code-build.html. it will be a "high winder" and with a bullet proof bottom end and a 4 bolt block could run to 10,000 rpm b 4 exploading ! These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. I called AFR about the problem and their only suggestion is to install a crankcase vacuum pump. Production casting part numbers: We discovered this was a 1969-70 BOSS 302 head modified for use on a 351C. Best heads for the price. Bob Perkins(WI) located it and restored it to original shape and build special plexiglass trailer for it to display. I think I have seen afrermarket heads but cannot rememmber where. I was going to have my reconnecting rods reconditioned with 5/16 arp bolts. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. Theyre fully assembled with valve springs, retainers, locks, guideplates, studs, and seals. Ever wonder what those camshaft specification numbers really mean and how they affect engine performance? Renegade Street. The spark plugs are also positioned well, and I cant foresee any interference with any headers. Assembled. When the SCCA started the Trans-Am series. disappointed discovering this situation. Not all that long ago, the small-block fan's only choice for Ford cylinder heads was the classic 351W Ford heads swap on a 302. 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. Boss 302 is a Windsor engine; uses Windsor cam lobe profile & 1.6 Windsor rockers. It will have screw-in core plugs and a four-bolt main block if it is a Boss 302. 3/1 . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. You may also cruise the online auctions for a vintage 5.0L roller block (F1AZ-6010-B). The .10 difference in bore spacing( but the bolt pattern is the same square four as the smallblock) makes me think 3. which will help take the wait off the rear main bearing. Sizemore, formerly of Preperation H fame, did considerable valvetrain developement and terrorized the former checvvy stronghold of I and J/Gas. legend . Cylinder heads are available fully assembled or as bare castings. The darned thing was rabid dog fast. Though I rated the overall part as good, the areas that really count are just average. in 1969 with Doug Durham and me ,TED FORDMAN EHRHARDT who took a new Boss 302 short block apart and checked all specs. While it only had .480-inch of lift, that duration would really allow the RPM to climb. 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. Works with most standard components. When I set the carb I get a bouncing vacum needle at idle, Ive been told thats a sign of a sticking valve. 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. What I got was good, but the quality control person should not have let these go out the way they are. I was building that garbage in 2nd grade. 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. . I think the higher RPM one had larger valvesand ports, right? See it here: yes its ben done. The winner in this evaluation is almost always the least-expensive head just because of the way the math formula works. Perfect fitment, good quality heads on a budget! I KNOW FROM EXPERIENCE. Wait 1.6 rockers? Better than fighting with iron cylinder heads. Save my name, email, and website in this browser for the next time I comment. Its main function is to seal the combustion chamber and provide a surface for the intake and exhaust valves. Opens in a new window or tab. Ah now Plummer - it's not a secret if you post it on VMF! And then it's gonna be HP you'll make, not a lot of torque. they mandated a 5.0-liter displacement limit. saving. He stated he spent over $10,000 back then. It would make a nice high rpm engine that was pretty soft on the lower end where you spend the most time. [IMG]http://home.pacbell.net/kketell/USAFlag2.gif[/IMG][IMG]http://a8.cpimg.com/image/56/2C/8548438-4e05-00C8003F-.jpg[/IMG]. 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. Gurney Eagle : Gurney Eagle race heads : Application. A stock 1970 Boss 302-spec solid, flat-tappet cam was used and offered a tad over .500-inch lift and 228 degrees of duration at 0.050. It was the most expensive of all the heads we tested. The heads are awesome and fit great! Russell; COMP Cams; TCI Auto; FAST; E-Comm Sales: Sales: 888-799-1135 Tech: 800 . Talk to Coast High Performance in Torrance, CA who sells quite a few 347 Street Fighter kits/short/long blocks and they will have some stats to back up quite a different story. 64cc Volume. Won't work with the 289 stroke. . 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. My build is a 306, 9. It was honestly a guess on my part and the Tech had no additional information or opinion to offer. Cloyes gears to replace the factory chain set-up and hand-built his own Accel BEI distributor by machining the housing ut of aluminum billet. In my 70 years of fooling with cars, we always had a formula. For use on pre-pollution controlled vehicles only. Aluminum will allow you 1pt up in compression for its ability to shed heat. The BOSS 302 heads used some of the biggest valves in the industry. edelbrock. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. The heads offered an excellent midrange power curve, behind only the Twisted Wedge casting between 4,000 and 5,500 rpm. ENGINE BLOCKS . 1/23 . As far as I'm aware you only choice for factory heads in the Boss 302. I expected cleanup, but not like this. 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. The 4-bolt caps can be seen here. 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. Sure there's someone on here that could tell you what heads you have would be better but with the right (mild) cam, good intake, etc. These elements made the BOSS 302 a unique mill compared to what the rest of Detroit had to offer at the time. If this becomes a bit more subjective by adding in power (and why wouldn't you? The stroke difference between the two engines amounted . They used the 3 center sections of the heads. I personally know several guys with Boss 302s that have been secretly stroked to 347. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4in. Im looking to build an engine that produces 300ish hp. So howd they stack up? Great performance didnt notice any quality issues or burred edges when they came in. 1.73:1 rockers, 522 lift 292 duration nets 420 HP at 6300. Did you get them at a Chevy garage sale? The 300 block may have a slightly taller deck height than the 240. All Cleveland style heads including the BOSS has 1.73 to 1 ratio rockers. Edelbrock Performer RPM Cylinder Heads - Ford 351C Custom Camshafts, Valvetrain, Valve Springs, Push Rods, Timing Sets www.flowtechinduction.com "Generations above them were never perfect. These heads are always perfect, but could use a little bowl work thanks team SUMMIT. Experimental Boss 302 style heads . 58 cc Chamber. JavaScript is disabled. It features a forged dome piston to bring compression up to the original 11.0:1 compression ratio with the 64cc 186 casting fuelie heads. It was 351C heads, 3 of them, cut up into 6 pieces, then furnanced blazed. While the DZ 302 had a stronger midrange than the Boss 302, in stock form, the Boss reigns supreme in the higher RPM range. 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 . Cover Autolite 4V casting D0ZX9B48-3 . Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! A forum community dedicated to vintage Ford Mustang owners and enthusiasts. A borescope down the intake revealed lots of oil in the intake runners near the valves. They pull much harder through the midrange than the 351W heads they replaced on my 302 Ford. The block is a 1980 302 Winsor. . Thanks to all who helped us get here. When the vacuum is high, the intake is sucking oil through the valves. This makes it easy to torque and lower cost for better aftermaket bolts and studs. Here you can see exactly where each engine outshined the other, and by how much. 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. After spending an hour on the Edlebrock Tech line we determined the instructions are out of date relative to the current product being delivered of the 5073 head. These are perfect for the low compression big blocks of the mid to late 70s. They have cast iron seats and guides (titanium valve compatible) and are set up for studs and guide plates. We should stress that during testing we optimized each set of heads for timing and jetting and then ran the engine for two near identical runs, which were then averaged to come up with the final power numbers. Im trying to leave this pretty much as is, until I get a few good drives in. We got more than 450 HP on Fords dyno when we blew right rear tire and it took out Ford training board. Its useful for when you have a tight engine compartment and headers in a Falcon. Flashing in ports was unacceptable. Locate Boss 302 Heads on sale below with the biggest variety of Boss 302 Heads anywhere online. "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. Remember this correction adjustment is approximate and is only meant to get you close for the initial start up of the engine. However, there are a few notable differences between the Coyote in the F-150 and the Coyote in the Mustang. 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. A forum community dedicated to hot rod owners and enthusiasts. The 68 J and F code heads show to be the same in my information. So, instead, they ran a simple 750cfm Holley carburetor, along with 1-3/4-inch dyno headers. I was actually pleasantly surprised at the swirl polished valves and the large spring pockets for if you want to run larger springs with a monster cam! As fitted to the Boss, the heads feature steel spring seats, screw-in rocker studs, pushrod guide plates, and adjustable rocker arms. Both 1969 and 1970 302 BOSS engines will run great with a properly tuned 750 Holley. Find Parts and Accessories Boss 302 aluminum heads KEYWORD and get Free Shipping on Orders Over $99 at Summit Racing! If weight is a consideration, keep in mind that these iron castings weigh considerably more than the rest of the aluminum heads. Experimental Part . That means 305 maximum cubic inches. 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. Im not sure what has happened to Edelbrock, but their quality control sucks. 302/351 X2 Head. Keep the RPMs under 5,500 and valve lift is more like. I have certificate for it. Said to be "overvalved" for street performance. Roush? It used to be listed in the FRRP catalog. Boss 302. Cylinder heads casting ID decode for 260 289 302 351 390 406 427 428 429 460FE Boss Shelby. I was still only available with the special 302ci 290 hp high output engine. The 240 and 300 are basically the same engine -- based on the same block design anyway. Ive had several other brands, but HP has been the best. The Twisted Wedge heads also had the strongest horsepower curve above 4,000 rpm of all the heads tested. So it can already be made to haul. Yes you can bolt the 351C heads to a 289/302/351W block. From new ones to the aluminum headed one I have in my fairlane now. . Ultimately, the best cylinder head for your Ford 302 will depend on your specific goals and needs. This new design offers a 25-50 HP increase over current Cobra Jet heads, depending upon displacement and camshaft. Edlebrock is one of the few companies making great performance parts for small block Fords. Cross Boss 302 Mustang off highway use. BluePrint Engines Ford 302 C.I.D. 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. The 68 F code had 10:1 compression and made 210 bhp. Just my thought. Typing on the key kaed is cumbersome. When you shop through links on our site, we may earn an affiliate commission. Bored out 70-thousandths to 310 cubic inches and with a laundry list of. 8l F250hd efi roller engine? Reworking Cleveland heads I think would require reducing the size of some of the water passages and I unsure of the block clearance . 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. Street Cruiser Cylinder Head. 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 . This educational content is not intended to be a substitute for professional advice. I used them with a Comp Cams 274XE cam and a QFT 600cfm carb. Guys if you want to make serious power. very poorly packaged, opened it and there was no screen protection sheet between screen and keyboard. For a better experience, please enable JavaScript in your browser before proceeding. but thesell work on a large engine and flow, too. Why would you build a 302. On episode 19 of Engine Masters, David Freiburger explains cam lift, duration, lobe separation angle, and installed centerline. 09 of shims installed so they look good. See all 22 photos. What I have found out so far, the engine runs. The DZ 302 in the Z/28 was a natural marketplace competitor to the Boss 302 from Ford. on a brand new set of heads. Install the gaskets with the raised seal towards the head and it will fit the ports much better. The result was a powerful 290-horse factory screamer with peak street power coming in around 6,000 rpm. The BOSS 302 Registry is not affiliated with the Ford Motor Company. 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 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. Im looking for three Ford Cleveland 4V engines. The intake valves all have. you need custom pistons, boss intake, boss heads, boss pushrods, custom headers for a 65-66 mustang, 69-70 b2 headers for 67-70 mustang. . Search 6 Hohenthann siding contractors & companies to find the best exterior and siding contractor for your project. BOSS Cars Nationals 2005 - BOSS Cars Reunited. Great article is there a video available ? There was also drill flash from the machining of the bores for the valve guides and spark plugs. 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. 300 HP wouldn't be far off. one of the hotrod magazines did an article on the combo back in the 70's. 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. 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).