302 (may have been used on late 68 model year) 4V . These heads are screaming on the 302 I just built and are great quality. THAT IS UNACCEPTABLE IN MY BOOK. Peak power numbers are always fun to throw around, but car-crafters are also very astute at determining what all that power will cost. 18 Ft/Lbs - Aluminum Heads. Camshafts were quite similar to the 289 HP. Other than that it was OK. JavaScript is disabled. The brute 427 FE Series big block that won Le Mans also reigned supreme in limited production 1964 Thunderbolt Fairlanes in NHRA competition. It collects next to nothing. The 363 uses FRPP Z2 cylinder heads. 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. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! I remember reading about it in some magazine and I saw it on another forum recently. The supply chain issues are eliminating a lot of choices. Building LS garbage? Im looking to build an engine that produces 300ish hp. Did you get them at a Chevy garage sale? This is my first engine build, let me know if Im doing it all wrong. $ 5,595.00 Learn More. 09 of shims installed so they look good. Would it mess with the computer really bad. On episode 19 of Engine Masters, David Freiburger explains cam lift, duration, lobe separation angle, and installed centerline. Its all a win,win. The GT-40 cylinder head was produced in cast iron and aluminum, available from Ford Motorsport SVO and Ford Racing. I was going to have my reconnecting rods reconditioned with 5/16 arp bolts. The intake ports flow 382 cfm at .750-inch of lift. A tad shorter then a 351W but a little wider due to the size of the heads. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. Some additional 302 factory valve sizes: 69 Boss 302 intake 2.23 / exhaust 1.71. Both companies decided to develop a 302 combination via the previously mentioned four-inch bore and three-inch stroke. This is my first engine build, let me know if Im doing it all wrong. PRO1 170 Ford Tech Sheet - H30. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. Buy It Now +C $186.98 shipping estimate. A forum community dedicated to hot rod owners and enthusiasts. When the SCCA started the Trans-Am series. Fits on Dodge ramcharger, monaco, w100 series, sierra, pioneer, d300 pickup, d100 series, custom. 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. The BOSS head was functionally identical to the 351C 4V head. One side opted for mild lift and more duration, and the other went for more lift and milder duration. I passed over a different set of heads at the recommendation of my machinist. The modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through your engine for improve efficiency. Aluminum. Evidently youre research people are either misinformed, or just dont really care about building anything ford. Better than fighting with iron cylinder heads. I personally dont think a prospective buyer should have to learn about this issue by reading reviews. Sign up for a free trial to MotorTrend+ today and start watching every episode of Engine Masters, plus much more! 165 cc Intake. The advantage was better flow because the intake was on one side and the exhaust was on the other. Not to mention the 50lbs you lose off the front. Fig. To clear up a few questions, the combustion chambers are 60cc, not 64cc. 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. Budget iron can run $1195.00 for an easy 500 + hp but any more needs more valve area. 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. There are still 6 other steam holes not present in the 5073 head that are in the 350 block circa 1972. Once I pick the heads I was going to find a good cam for daily driving/ performance. The biggest difference between the two engines is the cylinder heads.. Its main function is to seal the combustion chamber and provide a surface for the intake and exhaust valves. What I have found out so far, the engine runs. It will have screw-in core plugs and a four-bolt main block if it is a Boss 302. The winner in this evaluation is almost always the least-expensive head just because of the way the math formula works. 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. Great article is there a video available ? THE NEXT ISSUE WAS VALVE SPRING INSTALL HEIGHT. 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. Actually, everything about these heads helps the little 302. BOSS Cars Nationals 2005 - BOSS Cars Reunited. So now, we have a pair of legends, being compared on the dyno. . The DZ 302 in the Z/28 was a natural marketplace competitor to the Boss 302 from Ford. 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. The BOSS 302 heads are known as "Cleveland style" heads as they are based on the head designed for the 351 Cleveland engine. I installed these on a factory 302 HO in my 94 Mustang. We'll send you raw engine tech articles, news, features, and videos every week from EngineLabs. That tradition dates back to the companys founding in 1903. Ford Racing's Z heads (PN M-6049-Z304DA, 63cc chamber, 2.02-inch intake valve, $1,695) are the next step in bolt-on performance castings for small-block Ford engines that see street and on-track . . Cylinder heads casting ID decode for 260 289 302 351 390 406 427 428 429 460FE Boss Shelby. Best heads for the price. That would probably have been the only intake available to work , at that time. Batten of Romulus, Mich who did the furnance-blazed heads. Luckily I had the tools to put them back on but this could have been a issue and made them not bolt on heads. You are better off buying model 5023 with 1. Ford New Boss 302 w/351C HDS Hex Head Stud Kit. Street 512 Mopar motor in a Dodge Dart . Marvin Shaw built us some nice HP heads for our later 1989 Super Stock Mustang driven by Charlie Ford who set 1/8th mile record under 6 seconds in 89/90 . Stroking an engine is not going to reduce your engine rpm. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. reach with flat gasket seat. Ford engineers took the new 351 cylinder head and modified it to work with the Tunnel Port block. Thesecret to a long life stroker is to add wieght to the crank so you can exterally balance @ 28 oz. In my 70 years of fooling with cars, we always had a formula. 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. I would suggest pulling the vavles and wiping everything down. Then Ill be looking for upgrades. And like the others mention, it was C.J. Feb 19, 2016. Neither was really that streetable but of the two the 70 had the smaller valves whick helped a little with the low rpm feel. Finding a Street Boss intake likely wouldn't be too difficult as multiple manufacturers have cranked them out over the years. The DZ 302 has a reputation for being a high-RPM screamer, and the camshaft is definitely part of that. It was what the SCCA mandated for street homologation. They are Worth it. Original aluminum Boss 302 valve cover brackets for the spark . For those who consider swirl a detriment to producing power this is a positive thing. 154-4207: Ford Racing Aluminum Valve Covers, Part # M-6582-Z351, SS, 12pt . True but it seems excessive to me. Meaning, their AQL is very low. [] Heres a close up of the head Marvin is using on our 351C build. extreme amount of burrs left all around the rocker shaft mounting pads. The Mustang 5.0L Coyote engine has evolved into the Boss 302, VooDoo 5.2L, and the Predator 5.2L. They are also cast with combustion It took about 500 honest HP to break into the 11s with a little bit heavier car than your mustang. Inline and < 15* valve angle such as World Products Man O' War 10* heads promote very good performance. Cylinder Head. Same transmission, run a 351W flywheel/flexplate (same as a C). He used a correct Duntov camshaft and set the lash a little tighter than the original spec, at .020-inch. The 4-bolt caps can be seen here. This engine was built in the 80s by someone with way to much money. detroit metro auto parts "302" - craigslist . 45 degree spark plug wires work great with these heads. 2.02/1.60 in Valves. If we were going to use these heads on a street engine, we'd disassemble them and spend the extra bucks to add a 30-degree back-cut to the intake and exhaust valves to improve their overall flow. Classes? 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. 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. This made-in-the-USA head is Edelbrock's value leader. 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 ! Australian car enthusiast with 30 years experience in the high performance industry. Perfect fitment, good quality heads on a budget! Speedway and Try-State Cylinder heads both stand behind this product. Boss 302 blocks are used all the time for Windsor headed performance buildups! For the 1968 Trans Am season, Ford took the 302 cubic inch Tunnel Port out there in search of victory. it boots up ok but not as fast as my other i5 laptop. The recommended spark plug for your typical application is the Champion 792 plug, gapped at. ONE WAS OFF BY. Required fields are marked *. The 300 block may have a slightly taller deck height than the 240. 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. These heads use the same valves, valve springs, retainers, and 7/16 in. For the testing, Holdener put together a non-numbers matching replica of the DZ 302. 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. We apologize for the inconvenience I think I have seen afrermarket heads but cannot rememmber where. If you are looking for a set of World aluminum heads, you can find them at Bill Mitchell Products. Tech-Sheet. 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. 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. Will these heads work well?. World contributed the lone cast-iron head to our Ford small-block test. Peak power was good, at 349 hp, and torque is also reasonable. 1.290 in Spring. The product is a great entry level/cheap head though so 5 stars! Cheaper than some rebuilds. Street Cruiser Cylinder Head. Ive built 302/347 engines with stock heads, Roush180/Windsor Jr. , and Trick Flow Twisted Wedge heads. Still have lots of racing Boss and Hipo parts. 8:1 compression, TFS Stage 1 hydraulic roller cam, 1 5/8 headers, Summit Stage 1 dual plane intake, Edelbrock 650 AVS carb. Assembled. They are very capable iron heads. These aluminum heads can be directly installed on all small-block Fords: 289, 302, 351W and, with some modifications, even 351C engine blocks. Maximum output for less money!. The Boss was topped off with an original aluminum. Aluminum will allow you 1pt up in compression for its ability to shed heat. Roush? Twisted Wedge and Canted valve (TFS and C302b) in aluminum promote even better performance. I'd have to look through some old books, but I think it took 3 heads to get 1, although it may have been 2. Ultimately, the best cylinder head for your Ford 302 will depend on your specific goals and needs. 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). When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. While the DZ 302 had a stronger midrange than the Boss 302, in stock form, the Boss reigns supreme in the higher RPM range. So, a big head, lots of camshaft, an aluminum intake, and a Holley four-barrel. (BOSS) Said to be "overvalved" for street performance. 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. Whenever youre running a flat tappet cam, always use a zinc additive, Building Classic Ford 351 Cleveland Power. Edelbrock E-Street cylinder heads are just the ticket. 22-25 Ft/Lbs - Iron Heads. 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. Cylinder Head. 035 (which I am using). sbf 302 aluminum cylinder heads. These ford flathead cylinder heads feature original edelbrock script logo design for fords and mercurys. 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. 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. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4in. Pair. Put on a 351w in a 1979 Tbird. Both had dual-plane high-rise intakes and big Holley carbs. One thing I found particularly awesome about these heads is the spark plug holes and threads. 4V. 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. 1.290 in Spring. Yates? Factory was1.73 IIRC. Cylinder heads are available fully assembled or as bare castings. Like we said, if best power or least price is your only concern, then the decision is easy. Cross Boss 302 Mustang off highway use. No stick hole up top. Was running 850 dbl pump Holley with 4:56 gears, and I was running 12:20s at over 112 mph in the quarter. When you shop through links on our site, we may earn an affiliate commission. Pair. Sizemore, formerly of Preperation H fame, did considerable valvetrain developement and terrorized the former checvvy stronghold of I and J/Gas. Not sure about the 5089. Assembled. Great option. The best aluminum heads for 302, without a doubt, have an effect on the vehicle's RPM. Not even close to what I thought I should be getting in a brand new set of heads. The stroke difference between the two engines amounted . You'll notice that we attenuated the horsepower graph to include just the power curve between 4,000 and 6,200 rpm. . Does anyone remember the six cylinder heads they made for Bruce Sizemore. I wanted to built a great runing, mild street motor around a stock sbf 302 short block. Keep the RPMs under 5,500 and valve lift is more like. Great performance didnt notice any quality issues or burred edges when they came in. The results of this test didnt really surprise me, except for one thing, reveals Holdener. Typing on the key kaed is cumbersome. It was a world beater and symbolic of the end of the classic muscle car era. That means 305 maximum cubic inches. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. While it only had .480-inch of lift, that duration would really allow the RPM to climb. 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. All they had to do was make the piston dome bigger on the 302 to keep the same 11:1 compression ratio.. You wont find heads of this quality at a better price anywhere. It was honestly a guess on my part and the Tech had no additional information or opinion to offer. When you do that, you can see that the TFS head did substantially better than all the other heads above about 4,400 rpm. Also; I had Carroll Shelby/SAAC racing program in several other FORD dealerships . in 1969 with Doug Durham and me ,TED FORDMAN EHRHARDT who took a new Boss 302 short block apart and checked all specs. The wide and large port heads with staggered valve placement give the 302 H.O. 185 cc Intake. Opens in a new window or tab. Cast from prime A356 T6 aluminum, these "Z" heads from Ford Racing were designed using solid modeling technology. 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We certainly don't want to ignore the peak numbers, and that's where the TFS Twisted Wedge heads really earned the spotlight. I never did own a Boss 302, but I was around them when they were new.I have had lots of 351C. The "civilian" Boss 302 engine had a 4 bolt main block with screw-in freeze plugs and a forged steel crank. The Boss 302 takes the Mustang GT's suspension and adds higher-rate coil springs, stiffer bushings, and a larger diameter rear stabilizer bar. You would need a Boss 302 manifold for the intake. 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. However, way down low, where the big-port Boss 302 motor isnt supposed to work, it made decent low-speed torque. When it comes to the valve events, Ford and Chevrolet took two different approaches. 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.
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