Enter Fords development of an all-new 351ci engine with poly-angle valve heads and tight-fisted wedge heads destined for a 1970 introduction. Bolts in anywhere a 302 will go with the right headers and pan. Though peak horsepower is a quick reference point for evaluation, we prefer to use average power in these comparisons because it always produces a better picture of overall performance. I might like to put it back together this summer with your fluid damper a 600 holley carb and maybe your electronic distributor . Today's small-block Ford street engine builder has it easy. Prices listed are from the story's original publish date, February 1, 2013. Fords classic 1969-70 BOSS 302 engine was a bold step forward after a miserable season in 1968. There is a lot he did to this engine, if you're interested but he kept the orig. I called AFR about the problem and their only suggestion is to install a crankcase vacuum pump. 546hp @5600 rpm also had 630 ft-lbs torq@ 4400 rpm. We were smart enough to test-fit the heads on the Boss 302 block before testing began and discovered these heads are designed to be used with 7/16-inch head bolts, with restrictors in the head-bolt holes. But for perhaps a majority of enthusiasts, this evaluation may be too simplistic. I am running them on a 302 and purchased this set for a 351 build. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines. You are better off buying model 5023 with 1. Yes you can bolt the 351C heads to a 289/302/351W block. Sign up for a free trial to MotorTrend+ today. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. While the tunnel port wasnt a complete success, thats how the Boss heads came to be. The intake valves all have. No mention of those holes in the instructions. The BOSS piston was a unique item, configured to use the 289HP rod with the 302 stroke. However, it is generally agreed that aftermarket cylinder heads can provide significant performance gains, and that aluminum heads are often the best choice for racing applications. What looks like parting lines are huge in some places, one exh runner has a stick of Aluminum protruding into the runner (pic 1). TRW developed these pistons and suppled Ford with them for both racing and production engines. The BOSS 302 heads are known as "Cleveland style" heads as they are based on the head designed for the 351 Cleveland engine. But it should be noted that Ak Miller built a '67 Mustang at about the same year and created a 300 out of a 240 ( for the younger ones a 300 used to be a truck engine and the smaller 240 was used in the cars,LOL) with a set of Webers and bigger valves and cam, it turned in the twelves, that's in the late 60s. . This is my first engine build, let me know if Im doing it all wrong. 1969 Intake - 2.23 inches Exhaust - 1.72 inches. These aluminum heads can be directly installed on all small-block Fords: 289, 302, 351W and, with some modifications, even 351C engine blocks. 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. I HAD TO CHANGE OUT THE SPRINGS FOR ONES WITH MORE PRESSURE DUE TO VALVE FLOAT AND I AM ONLY RUNNING AN E303 CAM. Other Intakes >> Application. I remember reading about it in some magazine and I saw it on another forum recently. Compatible with Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc Angled Plug Aluminum Bare Cylinder Head $238.88 $ 238 . 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. Tech-Sheet. This is the Head Bolt Torque Sequence (Pattern) for Ford's small block. Intake - 2.23 inches 1969 I was wondering how these heads would work on my 97 5. The 240 and 300 are basically the same engine -- based on the same block design anyway. This engine was built in the 80s by someone with way to much money. But there is absolutely something else wrong. 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? Said to be "overvalved" for street performance. 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! I have not been able to specifically identify because the stamp on corner does not mach up with what it should be. 69 Boss 302 Mustang & Cougar . The cam featured 290 degrees duration and .477 in (12.1 mm) of lift. We'll send you raw engine tech articles, news, features, and videos every week from EngineLabs. 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. The Dart castings would have been the Iron Eagle versions, and the Pro Comps are affordable in aluminum. 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. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4 reach with flat gasket seat. refresh the page. The holes are also there in a 350 block and Felpro gasket as well as the 5073 head. 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. ---185cc Aluminum Heads for SB Ford --- Luckily I had the tools to put them back on but this could have been a issue and made them not bolt on heads. Sold individually. The BOSS piston was a unique item, configured to use the 289HP rod with the 302 stroke. 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 . These are certainly worthy of attention at this excellent price. What type of heads fit a Boss 302 block? Both engines are solid flat tappet cams, and the Chevy especially responded to changes in the lash. Ford engineers took the new 351 cylinder head and modified it to work with the Tunnel Port block. I am through with their products. For those who consider swirl a detriment to producing power this is a positive thing. Henry Ford II wasnt going to have it any other way. This is my first engine build, let me know if Im doing it all wrong. $ 5,595.00 Learn More. I have certificate for it. The heads are awesome and fit great! Ive had several other brands, but HP has been the best. A factory high-rise dual-plane intake manifold was used, with one part not period-correct. It took about 500 honest HP to break into the 11s with a little bit heavier car than your mustang. 8l F250hd efi roller engine? We will admit to you our results on the dyno were disappointing304 horsepower and 288 lb.-ft. of torque. 154-3702: SB Ford 302W 12pt Head Bolt Kit. I recommend purchasing ARP studs and guideplates for perfect rocker alignment. Had to mill out some (- one hour with a Dremel), to get my stock distributor clamp to fit. 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. 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. As far as I'm aware you only choice for factory heads in the Boss 302. Im looking to build an engine that produces 300ish hp. The head bolts used on a Boss 302 were a flanged-style head bolt. 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. These heads are always perfect, but could use a little bowl work thanks team SUMMIT. 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. They pull much harder through the midrange than the 351W heads they replaced on my 302 Ford. Guys if you want to make serious power. You'll notice that we attenuated the horsepower graph to include just the power curve between 4,000 and 6,200 rpm. Works with most standard components. If we've muddied the waters a bit, it's only the result delivering more information on the way to a decision. But thanks to all of your responses this is not for me! NOS 1969 1970 Mustang Boss 302 speedometer. in 1969 with Doug Durham and me ,TED FORDMAN EHRHARDT who took a new Boss 302 short block apart and checked all specs. The real question is, what do these factory motors make, and how do they compare to each other?. Speedway and Try-State Cylinder heads both stand behind this product. Remember this correction adjustment is approximate and is only meant to get you close for the initial start up of the engine. But the springs they come with are for a hydraulic roller cam. To minimize the grief of doing the math yourself, we averaged the horsepower between 3,000 and 6,000 rpm, then divided that into the cost of a pair of heads. second time I have been disappointed with Edelbrock. Very limited suppliers of flathead parts always look to speedway for my hotrod items. The BOSS 302 heads used some of the biggest valves in the industry. Currently working on a 1970 Mach 1 project. The winner in this evaluation is almost always the least-expensive head just because of the way the math formula works. Pontiac was the outlaw division. Fords incredible 1969-70 Trans Am BOSS 302. Put on a 351w in a 1979 Tbird. Street Cruiser Cylinder Head. extreme amount of burrs left all around the rocker shaft mounting pads. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. AIR FLOW RESEARCH 1402 SBF 165cc Alum Heads Renegade Street 58cc. the second head had not been full deburred from the milling process. 1-330-630-1555 1-888-841-6556. . The factory 780cfm carburetors are really, really expensive, and we didnt want to spend a few thousand dollars on a carburetor, explains Holdener. 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. Its all a win,win. which de-stroked it. The Duntov cam that GM used in the DZ 302 had over 250 degrees of duration at .050 [inch]! Holdener explains. They are very capable iron heads. For the 1968 Trans Am season, Ford took the 302 cubic inch Tunnel Port out there in search of victory. Not too much carb for this engine. Stroke that thing. $1,692.99. What? The Fora platform includes forum software by XenForo. Still have lots of racing Boss and Hipo parts. Stroking an engine is not going to reduce your engine rpm. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. Needless to say the head kicked ***. The block is a 1980 302 Winsor. from United States. I am building a budget 440 RV motor that should be a monster street tire smoker for under $3000. Generator stud kit for 1938-48, use #8506. At the brochure, the two engines are identical power-wise, according to Holdener, but we prefer to let the dyno tell us who makes what. 09 of shims installed so they look good. What I have found out so far, the engine runs. SB Ford WP Man O'War iron block/Man O'War aluminum head Head Bolt Kit. This one appeared great at first use and for a couple of months. Have you got the intake? I understand why now they are so much more money! The product is a great entry level/cheap head though so 5 stars! Aluminum Block Aluminum Heads - Subtract .012? Moving to the Blue Oval, we see that they went with a milder profile. I really liked my 69 428 CJ. . That was a surprise.. They have cast iron seats and guides (titanium valve compatible) and are set up for studs and guide plates. Said to be "overvalved" for street performance. The drag strip in my area doesn't have any classes. Factory was1.73 IIRC. 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. 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. 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. He used a correct Duntov camshaft and set the lash a little tighter than the original spec, at .020-inch. So the induction system is kind of a toss-up. Great bang for your buck with these heads. The heads alone are excellent fit and quality. high power capabilities. That puts lift over .500 inch .514 according to our calculations, minus the lash, Holdener reveals. These were available in stock and have the right size intake valves so I grabbed them instead. It had a close ratio 4 speed transmission, a 3.50:1 rear axle, a staggered shock competition suspension and a 16 : 1 steering box. I was trying to find a set of heads that will produce 300ish hp. A forum community dedicated to hot rod owners and enthusiasts. Other than this the heads flow nicely on the street. Our FDC has over 150 racing members and FORD promised us Hubert Platts Drag Mustang after series which disappeared. 1.290 in Spring. Also, the visual aesthetic is pretty plain, and the laptop doesnt have a sleek feel to it. All rights reserved. A stock Boss head will support way over 500 horsepower, where the Chevy will struggle at 400 horsepower. 302/351 X2 Head. The TFS heads appeared to be the big dog in the room when it came time for testing. There was dust and paper bits all over the keyboard and screen!! 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. The 302 has a 9:1 compression ratio, while the 347 and 363 have 9.6:1 and 10.2:1, respectively. 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. The DZ 302 in the Z/28 was a natural marketplace competitor to the Boss 302 from Ford. Ford has always been a car company that dared to go where no automaker had ever gone before. Neither was really that streetable but of the two the 70 had the smaller valves whick helped a little with the low rpm feel. It was rated at 10.5:1 compression and 230 bhp (Shelby was rated at 250). 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. Boss 302 is a Windsor engine; uses Windsor cam lobe profile & 1.6 Windsor rockers. So howd they stack up? I thought the bolt pattern was the same, that is what helped to make the swap work. It didnt conform to corporate protocol and invented the muscle car in its 1964 GTO. 1.290 in Spring. 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. searching. Thanks to all who helped us get here. 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. Ford brought back the iconic 5.0L in the 2011 Mustang. It was a world beater and symbolic of the end of the classic muscle car era. . Edelbrock Performance Cylinder heads are manufactured of A356 aluminum and made in the USA for AMC, Buick, Chevy, Chrysler, Ford, Oldsmobile, & Pontiac engines. I wanted to built a great runing, mild street motor around a stock sbf 302 short block. Search 6 Hohenthann siding contractors & companies to find the best exterior and siding contractor for your project. Im looking for three Ford Cleveland 4V engines. Both these motors were factory-rated at the same 290 horsepower, but that number is suspect, says Holdener. The Twisted Wedge heads also had the strongest horsepower curve above 4,000 rpm of all the heads tested. Bought these and compared to the other (PC). The 68 J and F code heads show to be the same in my information. Next, we test a low-rpm cam and a high-rpm cam in the same engine to demonstrate the power differences. One thing I found particularly awesome about these heads is the spark plug holes and threads. Are you looking for a set of entry-level street performance heads for your modern street rod, musclecar, or truck? Install the gaskets with the raised seal towards the head and it will fit the ports much better. The Boss used a mild camshaft, mild compression, and lots of head flow, Holdener says. which will help take the wait off the rear main bearing. For the testing, Holdener put together a non-numbers matching replica of the DZ 302. 1970 But when I received them the box was almost completely destroyed and when I took them out of the box 2 valve springs and retainers were off the stud and loose in the box. Ford's 302 crate engines use Boss 302 iron blocks. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! More than 400 horses easy. If weight is a consideration, keep in mind that these iron castings weigh considerably more than the rest of the aluminum heads. It came with aluminum heads that were way too big for the cam and my use. On episode 19 of Engine Masters, David Freiburger explains cam lift, duration, lobe separation angle, and installed centerline. 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. Max effort class rule stuff runs over $2K. For high-performance's street and competition, our dual-plane design makes outstanding power from 1500 to 6500 rpm. I think I have seen afrermarket heads but cannot rememmber where. Actually, everything about these heads helps the little 302. I used them with a Comp Cams 274XE cam and a QFT 600cfm carb. My first work Dell was super slow and sluggish, so I was sent a new one. stud kit is of poor quality everything else in my order was good quality. View Details. Edlebrock is one of the few companies making great performance parts for small block Fords. THE FIRST SET I PURCHASED WERE LIKE THIS AND I INSTALLED WITHOUT CHECKING THEM. Ford Performance Cylinder Head X2 Street. Other than that it was OK. on a brand new set of heads. This new design offers a 25-50 HP increase over current Cobra Jet heads, depending upon displacement and camshaft. Buy It Now +C $186.98 shipping estimate. We certainly don't want to ignore the peak numbers, and that's where the TFS Twisted Wedge heads really earned the spotlight. 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. These heads have the right size valve for those piston. 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. ENGINE BLOCKS . The Ford had slightly less compression, at 10.5:1, so out of the gate, Chevy had a little bit of an advantage.. Im just hoping the new Edelbrock intake that arrived yesterday is better than these. I think it was based on the Cleveland design. 1969 mustang fastback boss 429 351 race car front end. Semi or Farm tractor repair shops would probably have the location of one near you.Now, with all the Aluminum small block head available, you could create a real bad 6. Edelbrock heads are available in two different versions, with either 1.94- or 2.02-inch intake valves. I was going to have my reconnecting rods reconditioned with 5/16 arp bolts. The connection with metered networks (or connecting to your phones hotspot) appear to deteriorate over time, and causes this error. 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. My fault for not setting the intake on the engine to check my end gaps. . It used to be listed in the FRRP catalog. . Best heads for the price. Small Block Ford. we all have our shortcomings. These heads are coated with assembly lube out of the box. Though I rated the overall part as good, the areas that really count are just average. You can see how the valves are canted in this picture. Find Parts and Accessories Boss 302 aluminum heads KEYWORD and get Free Shipping on Orders Over $99 at Summit Racing! My first ever computer was an HP Pavilion PC, and theyve always been my favorite brand since then. I would suggest pulling the vavles and wiping everything down. They will outperform many of the average aluminum heads. Some additional 302 factory valve sizes: 69 Boss 302 intake 2.23 / exhaust 1.71. disappointed discovering this situation. saw a pair of Boss 302 heads online for $400 and thought why not. AFR - Airflow . Peak power numbers are always fun to throw around, but car-crafters are also very astute at determining what all that power will cost. I purchased these because I needed some better than stock, but not full out race heads. Cover Autolite 4V casting D0ZX9B48-3 . 58 cc Chamber. The 4-bolt caps can be seen here. 300 HP wouldn't be far off. When it comes to the valve events, Ford and Chevrolet took two different approaches. Also; I had Carroll Shelby/SAAC racing program in several other FORD dealerships . 2023 Power Automedia. As I recall from articles way back, this is an expensive process. 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. crank, offset-grinding it to a smaller crankpin diam. 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. Ford Racing teamed up with Jon Kaase to redesign their 429 Cobra Jet cylinder heads, and the results are these Super Cobra Jet heads. The spark plugs are also positioned well, and I cant foresee any interference with any headers. This is the 2012-2013 BOSS 302 cylinder head casting, M-6050-M50 and M-6049-M50 (shown), which really is a different casting of an improved 356 aluminum alloy (versus 319 with base Coyote heads) with CNC-machined ports and chambers. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. For use on pre-pollution controlled vehicles only. Once I pick the heads I was going to find a good cam for daily driving/ performance. BluePrint Engines stand in front of the class, offering both performance and cost-conscious enthusiasts a powerful alternativeMuscle Series cylinder heads. You may also cruise the online auctions for a vintage 5.0L roller block (F1AZ-6010-B). 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. Im sorry guys but you somehow missed something there are boss 302s out there cranking out way more than what you guys are claiming. This combo has been dynod at 460-ish hp at 5000 rpm and 550 ft lbs of torque at 2000 rpm. They'll work but have you got the Boss heads? The intake is off a 1965 Shellby. 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.. Cheaper than some rebuilds. Dimensions in Inches (LxWxH): 24.1 x 24.1 x 8.7. That's what the TFS Twisted Wedge heads did here.

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