They are Worth it. 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 are looking for a set of World aluminum heads, you can find them at Bill Mitchell Products. 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). Once I pick the heads I was going to find a good cam for daily driving/ performance. Every time I put a bigger carb on it, it ran faster. When the SCCA started the Trans-Am series. 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). 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. The stroke difference between the two engines amounted . 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 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. I wanted to built a great runing, mild street motor around a stock sbf 302 short block. After its time on the pump, the DZ 302 posted 357 horsepower at 6,700 rpm and 333 lb-ft of torque at 4,300 rpm. The 363 uses FRPP Z2 cylinder heads. And, he decided to make that happen. high power capabilities. 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. Reworking Cleveland heads I think would require reducing the size of some of the water passages and I unsure of the block clearance . Edelbrock E-Street cylinder heads are ideal for entry level street performance engines. Wait 1.6 rockers? 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. Boss 302 blocks are used all the time for Windsor headed performance buildups! I might like to put it back together this summer with your fluid damper a 600 holley carb and maybe your electronic distributor . They topped a 302 Windsor with the Cleveland -style heads, making the first Clevor. Small Block Ford. Even the stock cam should peek higher than 5500 rpm. 8:1 compression, TFS Stage 1 hydraulic roller cam, 1 5/8 headers, Summit Stage 1 dual plane intake, Edelbrock 650 AVS carb. installed the heads on a 1978 460 bored out .060 over went from 500 hp to 551 hp @4900 rpm on a dyno 8/9/19. Inline and < 15* valve angle such as World Products Man O' War 10* heads promote very good performance. 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. All Cleveland style heads including the BOSS has 1.73 to 1 ratio rockers. 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 . All rights reserved. which will help take the wait off the rear main bearing. When the vacuum is high, the intake is sucking oil through the valves. Like we said, if best power or least price is your only concern, then the decision is easy. This could easily cause a hot edge and create premature detonation of the charge. Boss 302 heads are unique.No other heads will work without some changes. The heads offered an excellent midrange power curve, behind only the Twisted Wedge casting between 4,000 and 5,500 rpm. It was rated at 10.5:1 compression and 230 bhp (Shelby was rated at 250). 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). The recommended spark plug for your typical application is the Champion 792 plug, gapped at. These lightweight aluminum heads bolt up to your small block Ford and feature 190cc intake/60cc exhaust runners, 60cc combustion chambers, and 2. Top Rated Seller Top Rated Seller. Not too much carb for this engine. 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. They pull much harder through the midrange than the 351W heads they replaced on my 302 Ford. 302 (may have been used on late 68 model year) 4V . This educational content is not intended to be a substitute for professional advice. Those of you who understand the BOSS 302 know Ford fitted these engines with a 780 cfm Holley but not necessarily because thats what they needed. Experimental Part . Edelbrock 1115 Ford Flathead Cylinder Head, Ford Racing M-6049-SCJA Super Cobra Jet Cylinder Head, Cylinder Head SBF Stud and Plate 1.94 Assembled, Air Flow Research Renegade Street Aluminum Cylinder Head SBF 2 PC P/N 1402, Edelbrock 1116 Ford Flathead Cylinder Head, Blueprint Engines HP9009 SBF Alm. How can you call it racing if you're putting the brakes on before the finish line? So it can already be made to haul. . Edelbrock E-Street cylinder heads are just the ticket. 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. As far as I'm aware you only choice for factory heads in the Boss 302. Prices listed are from the story's original publish date, February 1, 2013. The winner in this evaluation is almost always the least-expensive head just because of the way the math formula works. It didnt conform to corporate protocol and invented the muscle car in its 1964 GTO. 030 AND 2 OF THEM WERE. Flat cylinder heads have large water capacity and excellent breathing characteristics. The holes are also there in a 350 block and Felpro gasket as well as the 5073 head. Typical rebuild, headers, Competition solid lifter cam, 1.73 Crane roller rockers. A borescope down the intake revealed lots of oil in the intake runners near the valves. edelbrocks were my first finned aluminum heads for a flathead25 years agoand they were o. k. for a 239 or a 255, due to small combustion chambers. 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. Works with most standard components. The RHS headsproduced the next-closest average horsepower and torque, with the Edelbrock and Ford heads very close behind. I was still only available with the special 302ci 290 hp high output engine. Renegade Street. When I set the carb I get a bouncing vacum needle at idle, Ive been told thats a sign of a sticking valve. I SENT THEM RIGHT BACK. 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. Weve got 302 fords with gt40 3 bar heads making over 500 hp. 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. Plus we used cam dial-in and it was only off a half degree. What type of heads fit a Boss 302 block? Pontiac was the outlaw division. I personally know several guys with Boss 302s that have been secretly stroked to 347. 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. 58 cc Chamber. Cylinder Head. 98 sold That may or may not make your ultimate choice any easier, but if so, you can thank us later. What cam specs and static CR? FORD 5.0L/302 Cylinder Heads. Said to be "overvalved" for street performance. 1969 mustang fastback boss 429 351 race car front end. Ford's 302 crate engines use Boss 302 iron blocks. Ford Aftermarket. They feature high-flow ports and steel alloy intake and exhaust valve seats installed (they do require a competition valve job and bowl blending). The Fora platform includes forum software by XenForo. I am running them on a 302 and purchased this set for a 351 build. Cylinder heads casting ID decode for 260 289 302 351 390 406 427 428 429 460FE Boss Shelby. It was the most expensive of all the heads we tested. 045. Well I have a 1977 copy of Pop. 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. i drank a bottle of 10,000 rpm and thode a rod !!! For the 1968 Trans Am season, Ford took the 302 cubic inch Tunnel Port out there in search of victory. 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. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4 reach with flat gasket seat. These ford flathead cylinder heads feature original edelbrock script logo design for fords and mercurys. $ 5,595.00 Learn More. second time I have been disappointed with Edelbrock. Fits on Dodge ramcharger, monaco, w100 series, sierra, pioneer, d300 pickup, d100 series, custom. Luckily I had the tools to put them back on but this could have been a issue and made them not bolt on heads. The BOSS piston was a unique item, configured to use the 289HP rod with the 302 stroke. . Valves 2.02 / 1.55" . Very nice , Made in USA quality and same price as off shore heads. This particular evaluation only works, however, if lowest cost is the highest priority. 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. That would probably have been the only intake available to work , at that time. 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. 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. We apologize for the inconvenience I called AFR about the problem and their only suggestion is to install a crankcase vacuum pump. Any advice would be greatly appreciated. Age Group: adult. Still have lots of racing Boss and Hipo parts. Edlebrock is one of the few companies making great performance parts for small block Fords. This one appeared great at first use and for a couple of months. We got more than 450 HP on Fords dyno when we blew right rear tire and it took out Ford training board. good luck with that. Years ago there was a six cylinder weight break for the late model classes at one of the local dirt tracks that I would frequent. 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 302s fuelie heads. 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. Save my name, email, and website in this browser for the next time I comment. World contributed the lone cast-iron head to our Ford small-block test. AIR FLOW RESEARCH 1402 SBF 165cc Alum Heads Renegade Street 58cc. Neither was really that streetable but of the two the 70 had the smaller valves whick helped a little with the low rpm feel. This conversion was well documented and fairly popular when aftermarket heads were not available. Cover Autolite 4V casting D0ZX9B48-3 . The 300 block may have a slightly taller deck height than the 240. 154-3607: SB Ford 289-302 standard 12pt Head Bolt Kit. 1.290 in Spring. However, Ford already had that architecture in its lineup, while Chevrolet did not. sbf 302 aluminum cylinder heads. However, in the upper RPM range, the Boss 302 shows a definite, significant advantage over the DZ 302. ---185cc Aluminum Heads for SB Ford --- THE FIRST SET I PURCHASED WERE LIKE THIS AND I INSTALLED WITHOUT CHECKING THEM. 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. 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. 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 Batten cyl heads was instrumental in developing the high port exhaust for the Dyno Dons and Bob G's and Jack Roushes. This page last updated: February 3, 2022. Henry Ford II wasnt going to have it any other way. And really, its a difference in the philosophy behind these two motors. You wont find heads of this quality at a better price anywhere. The Edelbrock Flathead Cylinder Head is made of A356 aluminum T-6 tempered cylinder head. 2.02/1.60 in Valves. Though that's significant, this is only reflective of a single point in the curve; it is more important to evaluate the entire length of this horsepower graph. Was running 850 dbl pump Holley with 4:56 gears, and I was running 12:20s at over 112 mph in the quarter. OK, you can do pretty well on a budget. either way, Im so thrilled with this product that im picking up the 205s for a fast engine build. To conceive the BOSS 302, Ford had to develop a special forged piston with a significant dome that would reach deep into the 351C heads 64 67cc chambers. 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. There was dust and paper bits all over the keyboard and screen!! 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. 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. It had to sneak the GTO in under the radar of upper management. So your wrong. For those who consider swirl a detriment to producing power this is a positive thing. It's also worth mentioning that due to a variety of scheduling and deadline pressures, the offerings from Dart and Pro Comp Electronics, both of which fit within our price prerequisite, didn't make the test. The Ford is specd out at 228 degrees at .050-inch lift, but lift was a different matter. stud kit is of poor quality everything else in my order was good quality. Today's small-block Ford street engine builder has it easy. They had to combine a four-inch bore from a 327 block with the three-inch stroke from the 283, Holdener elaborates. This new design offers a 25-50 HP increase over current Cobra Jet heads, depending upon displacement and camshaft. 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. 154-4207: Ford Racing Aluminum Valve Covers, Part # M-6582-Z351, SS, 12pt . THAT IS UNACCEPTABLE IN MY BOOK. Does anyone remember the six cylinder heads they made for Bruce Sizemore. Valve stem heights all the same, decent springs, work fine for my rolller cam, good fit and finish. Stroke that thing. Pic 2 is a spot next to a water port on the intake surface where it looks like the facing tool tilted some. 1.290 in Spring. Its useful for when you have a tight engine compartment and headers in a Falcon. Sizemore, formerly of Preperation H fame, did considerable valvetrain developement and terrorized the former checvvy stronghold of I and J/Gas. Ever wonder what those camshaft specification numbers really mean and how they affect engine performance? The Boss 302 takes the Mustang GT's suspension and adds higher-rate coil springs, stiffer bushings, and a larger diameter rear stabilizer bar. A tad shorter then a 351W but a little wider due to the size of the heads. Raced and owned quite a few Boss 302s. 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. Exhaust - 1.72 inches. I think I have seen afrermarket heads but cannot rememmber where. The heads alone are excellent fit and quality. JavaScript is disabled. Heads are sold individually. I work in IT, so I know a good laptop/PC when I use one. I recommend purchasing ARP studs and guideplates for perfect rocker alignment. 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! Edelbrock E-Street cylinder heads are just the ticket. I passed over a different set of heads at the recommendation of my machinist. detroit metro auto parts "302" - craigslist . From new ones to the aluminum headed one I have in my fairlane now. It had a description amd Alan Johnson Cylinder Heads listed as the vendor and contact #805-922-1202. Not sure about the 5089. I have a 1969 Boss 302 original however I need to reassemble it I originally bought ARIES 10:1 forged pistons I believe 30 over . Otherwise, pair these with some flat top pistons with the correct valve reliefs. . 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. Intake - 2.19 inches A factory high-rise dual-plane intake manifold was used, with one part not period-correct. We'll send you raw engine tech articles, news, features, and videos every week from EngineLabs. refresh the page. Outperform many more expensive parts. Index your plugs on these engines. The 68 J and F code heads show to be the same in my information. While the tunnel port wasnt a complete success, thats how the Boss heads came to be. WITH THE STIFFER SPRINGS I REALIZED THE PEDESTAL MOUNT ROCKERS WOULD MOST LIKE FAIL SO I MACHINED THE PEDESTAL PADS, DRILLED AND TAPPED AND INSTALLED HELI COILS FOR ROCKER STUDS. Pair. The heads are awesome and fit great! The Edelbrock #5073 E-Street cylinder heads are designed for use with 1955-1986 Small-Block Chevy applications. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! Is it the 69 or 70 Boss 302 head that's more streetable? Autozone has a great price on these heads. 3/1 . Won't work with the 289 stroke. You will need the boss piston to go with the canted valves.. No. Due to the larger Cleveland-style heads, the Boss 302 weighs somewhat more than the normal 302, tipping the scales at 500 lbs. Aluminum. Had to mill out some (- one hour with a Dremel), to get my stock distributor clamp to fit. $1,692.99. Batten of Romulus, Mich who did the furnance-blazed 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. If you used windsor heads its not a BOSS. 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. Won't work with the 289 stroke. This includes 260, 289, 302, Boss 302, 351W and related variants.