good luck with that. The cylinder head also contains the spark plug and fuel injector(s). Looking at the graph, it looks like the DZ 302 actually outperforms the Boss 302 from 3,700 rpm until 5,800rpm. The intake ports flow 382 cfm at .750-inch of lift. 2. searching. I think I have seen afrermarket heads but cannot rememmber where. 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. 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. I have not been able to specifically identify because the stamp on corner does not mach up with what it should be. Yates? Any advice would be greatly appreciated. It was 351C heads, 3 of them, cut up into 6 pieces, then furnanced blazed. Where in the world did you come up with the "347s are not reliable"?. 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. Street Cruiser Cylinder Head. THE NEXT ISSUE IS THE RECOMMENDED INTAKE GASKET FEL-PRO 1262. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. Im just hoping the new Edelbrock intake that arrived yesterday is better than these. See all 22 photos. There was a guy named CJ Batten who would cut up 3 boss 302 heads and put them on a 300 IL6.The one I remember was on in a rail type dragster. Junk ass Chevrolet stroker engines.puleeeeeze. 154-3607: SB Ford 289-302 standard 12pt Head Bolt Kit. Flashing in ports was unacceptable. I have a Eldabrock Performer intake,msd distributor and 6al box and a 61mm bbk throttle body. $ 5,595.00 Learn More. No mention of those holes in the instructions. This minor tune-up would really improve the flow curve and add a measurable amount of torque. Are you looking for a set of entry-level street performance heads for your modern street rod, musclecar, or truck? For what the (complete) Boss heads and a intake will run seems you would be better off just going with a good set of after market heads. if you have over. Valves 2.02 / 1.55" . 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. 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. Generator stud kit for 1938-48, use #8506. I changed the thermostat so it would dump alittle more gas in her no problems so for. 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. 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. 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. As the 1968 Tunnel Port engine turned into a disaster, someone at Ford Engine Engineering got the idea to put a set of Cleveland heads on a Tunnel Port block and thus was the beginning of what would become the BOSS 302 engine. Reworking Cleveland heads I think would require reducing the size of some of the water passages and I unsure of the block clearance . Bolts in anywhere a 302 will go with the right headers and pan. Are there any aftermarket heads for it? Once those two tasks were completed, the heads delivered the best peak horsepower and torque numbers of the entire test, knocking down an excellent 380 hp at 6,000 rpm. You have to rev it to the moon to really make any power. We got our answer. To clear up a few questions, the combustion chambers are 60cc, not 64cc. And, he decided to make that happen. Future availability is unknown. I believe C.J. [IMG]http://www.dslextreme.com/users/jbooth/sidenew1.jpg[/IMG][IMG]http://www.dslextreme.com/users/jbooth/enginenew1.jpg[/IMG]. would love to return this old jalopy back!!!. My fault for not setting the intake on the engine to check my end gaps. 22-25 Ft/Lbs - Iron Heads. 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. The 68 F code had 10:1 compression and made 210 bhp. The connecting rods and crankshaft are made of forged steel, and the heads are aluminum with roller rocker arms. Plus, they give you more power behind the wheel and in your wallet! I am running them on a 302 and purchased this set for a 351 build. And then it's gonna be HP you'll make, not a lot of torque. The drag strip in my area doesn't have any classes. Typical rebuild, headers, Competition solid lifter cam, 1.73 Crane roller rockers. This is where you must spend the money. There are many different types of cylinder heads for Ford 302 engines, so it is difficult to make a definitive conclusion about them. The less you know the more you need vacuum secondarys. Also; I had Carroll Shelby/SAAC racing program in several other FORD dealerships . Required fields are marked *. The head bolts used on a Boss 302 were a flanged-style head bolt. When we tore apart the first head it was full of shavings and one of intake valves was super tight and one of the exhaust valves was bent w/. The 1968 Trans Am season was a disaster. 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. The heads offered an excellent midrange power curve, behind only the Twisted Wedge casting between 4,000 and 5,500 rpm. It had a description amd Alan Johnson Cylinder Heads listed as the vendor and contact #805-922-1202. Boss 302. Both engines are solid flat tappet cams, and the Chevy especially responded to changes in the lash. The darned thing was rabid dog fast. This made-in-the-USA head is Edelbrock's value leader. . reach with flat gasket seat. The runners are as cast and a bit rough. Before jumping right into the dyno numbers, we need to look at the engines backgrounds to truly understand why they were built, and why they are so equal. Parts made from tooling for the cancelled 1971 BOSS 302 were used for service. Fig. Peak power was good, at 349 hp, and torque is also reasonable. writing. http://fordsix.com/forum/viewtopic.php?t=33048, 1971 Ford Maverick - Budget 10-Second Turbocharged Maverick Coupe - Car Craft Magazine. JavaScript is disabled. It was what the SCCA mandated for street homologation. I was going to have my reconnecting rods reconditioned with 5/16 arp bolts. What I got was good, but the quality control person should not have let these go out the way they are. Ah now Plummer - it's not a secret if you post it on VMF! Edelbrock 5025: Cylinder Heads, E-Street, Aluminum, Assembled, 60cc Chamber, 170cc Intake Runner, Ford, 289, 302, 351W, Pair Are you looking for a set of entry-level street performance heads for your modern street rod, muscle car, or truck? The completed head is also wider so push-rod holes need to be cut-out on the block side, then sealed with "o" rings, etc. Yes you can bolt the 351C heads to a 289/302/351W block. $1,692.99. Combine Edelbrock quality with excellent power and a highly competitive price, and the E-Street Edelbrock heads strike us as an excellent choice. I think it was based on the Cleveland design. . It should be in the product description and specs. 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 Mustang 5.0L Coyote Engine Gen 1, Gen 2 & Gen 3 differences are explained by Landan with LMR. 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. And the reality is, they did, in modified trim the way they were raced in the Trans-Am series. Jeff Speegle Come see us @ ConcoursMustang.com MCA Shelby Judge, SAAC & Team Shelby Judge (in no particular order . From new ones to the aluminum headed one I have in my fairlane now. which will help take the wait off the rear main bearing. Neither was really that streetable but of the two the 70 had the smaller valves whick helped a little with the low rpm feel. Both of these options caused an internal vacuum leak because my intake sat low and the end seals did not let the intake ports seal like they should have. Factory was1.73 IIRC. I had 90 runs on an original Boss 302 in a 70 Mustang. Pic 2 is a spot next to a water port on the intake surface where it looks like the facing tool tilted some. Sizemore, formerly of Preperation H fame, did considerable valvetrain developement and terrorized the former checvvy stronghold of I and J/Gas. Alum. This is my first engine build, let me know if Im doing it all wrong. Purchased a long block on CL. stock rebuild,. I was building that garbage in 2nd grade. Boss 302 - 1970 Boss. 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. D. Hearne is on the money as usual. The result of this engineering effort was the BOSS 302 engine, which became the Trans Am mill of choice for 1969-70 and beyond in SCCA competition. While the DZ 302 had a stronger midrange than the Boss 302, in stock form, the Boss reigns supreme in the higher RPM range. The 69 and 70 F code 302's are rated at 220 bhp. The J code 302-4V was only made in 68. Huge difference in quality. Would it mess with the computer really bad. Ive had several other brands, but HP has been the best. When you do that, you can see that the TFS head did substantially better than all the other heads above about 4,400 rpm. The heads are Cleveland heads. Cylinder heads are available fully assembled or as bare castings. True but it seems excessive to me. The cam featured 290 degrees duration and .477 in (12.1 mm) of lift. Cover Autolite 4V casting D0ZX9B48-3 . The BOSS head was functionally identical to the 351C 4V head. We did this to expand the scale to show the differences in power near peak horsepower. Today, the aftermarket lineup of Ford cylinder heads has plenty of castings from which to choose. See the top reviewed local exterior and siding contractors in Hohenthann, Bavaria, Germany on Houzz. But as we've seen before, the heads that produce the best peak power also tend to do so throughout the entire rpm band. When the SCCA started the Trans-Am series. Whoever invented that crap ought to be shot. Don't know if it's still good. 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. Any who, this is a work laptop, and it started out pretty fast, but over time, it eventually slowed down. Not too much carb for this engine. 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. However, in the upper RPM range, the Boss 302 shows a definite, significant advantage over the DZ 302. Chevy used higher compression and lots of camshaft, combined with mild cylinder heads. Needless to say the head kicked ***. For a better experience, please enable JavaScript in your browser before proceeding. 340 HP Boss, Long Block, Assembled, Internal Balance, Aluminum Cylinder Heads, Ford, Small Block Windsor, Each Part Number: FMS-M6007X2302E ( 1 ) Free Shipping Special Order $10,649.99 Not Available At This Time This product cannot be ordered at this time. Locate Boss 302 Heads on sale below with the biggest variety of Boss 302 Heads anywhere online.
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