040 roller short block A little lope at idle but it pulls everywhere in the rpm range. These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. Needless to say the head kicked ***. While the tunnel port wasnt a complete success, thats how the Boss heads came to be. 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. 0:1 on blocks with a 3/16 base relief (stock bore and stroke). Thanks to all who helped us get here. 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. Search 6 Hohenthann siding contractors & companies to find the best exterior and siding contractor for your project. Exhaust - 1.72 inches. 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. Pair. It would make a nice high rpm engine that was pretty soft on the lower end where you spend the most time. 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. The intake valves all have. The RHS headsproduced the next-closest average horsepower and torque, with the Edelbrock and Ford heads very close behind. 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. 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. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. 22-25 Ft/Lbs - Iron Heads. i knew a guy that put a set on his 65 shelby. Pontiac was the outlaw division. That puts lift over .500 inch .514 according to our calculations, minus the lash, Holdener reveals. There are many different types of cylinder heads for Ford 302 engines, so it is difficult to make a definitive conclusion about them. The holes are just big enough for the spark plug socket, which guides it in perfectly. What? Because they didnt allow destroking [of an existing engine design] initially, both companies had to build actual displacements of five liters, explains Holdener. THE NEXT ISSUE WAS VALVE SPRING INSTALL HEIGHT. It didnt conform to corporate protocol and invented the muscle car in its 1964 GTO. 64cc Volume. 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. 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. To clear up a few questions, the combustion chambers are 60cc, not 64cc. 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. 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. Your email address will not be published. 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. 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 Cleveland heads can fit a 302 with the appropriate water passage mods and shouldered bolts to compensate for the bolt hole difference. Aluminum. I have tried most all of it and now do what is known to work.. Well, this may be old info, since the warning tells me that the last post for this discussion occurred >100 days ago. The rocker studs are 7/16, not 3/8. THE FIRST SET I PURCHASED WERE LIKE THIS AND I INSTALLED WITHOUT CHECKING THEM. This was a simple fix, using a drill press to open up the restrictors before we could use the 1/2-inch ARP head bolts. Im sure you had over 400. The block is a 1980 302 Winsor. Ford took on the world with the GT40 supercar. I have not been able to specifically identify because the stamp on corner does not mach up with what it should be. Any advice would be greatly appreciated. They dropped off after that. Other than this the heads flow nicely on the street. A big head and lots of airflow means lots of power. Boss 302. Don't know if it's still good. 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. detroit metro auto parts "302" - craigslist . Exhaust - 1.72 inches. 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. http://fordsix.com/forum/viewtopic.php?t=33048, 1971 Ford Maverick - Budget 10-Second Turbocharged Maverick Coupe - Car Craft Magazine. Bought these and compared to the other (PC). Edelbrock E-Street cylinder heads are just the ticket. The spark plugs are also positioned well, and I cant foresee any interference with any headers. Age Group: adult. Seems to me that if you get the right kit (ie correct wrist pin centering, rod length, etc), you should have no problem.. aliases: Bossssssman, bosscars, old fart, chat dawg, hey you. Ford engineers took the new 351 cylinder head and modified it to work with the Tunnel Port block. There is no flat spot and these engines will pull from 2000 against any rival including a Windsor. 58 cc Chamber. The best aluminum heads for 302, without a doubt, have an effect on the vehicle's RPM. 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. [IMG]http://www.dslextreme.com/users/jbooth/sidenew1.jpg[/IMG][IMG]http://www.dslextreme.com/users/jbooth/enginenew1.jpg[/IMG]. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Still have lots of racing Boss and Hipo parts. The compression ratio increase is approximately 3/10 of a percent with each 1/8 stroke. Bill Mitchell Products BMP 087510 - Aluminum Engine Block Ford Small Block 302 Mains, 8.200 Deck, 3.995 Bore, Billet Caps. Street 512 Mopar motor in a Dodge Dart . 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. Evidently youre research people are either misinformed, or just dont really care about building anything ford. Cylinder Head. 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. Install the gaskets with the raised seal towards the head and it will fit the ports much better. However, way down low, where the big-port Boss 302 motor isnt supposed to work, it made decent low-speed torque. The Dart castings would have been the Iron Eagle versions, and the Pro Comps are affordable in aluminum. It's important to note that this was the only head in our test that required its own separate valvetrain. To complete the Boss, we added an Edelbrock Performer RPM intake, a Holley 750-cfm, mechanical-secondary HP carb, MSD distributor, and a set of open dyno exhaust headers, and we were ready to rumble. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines. The heads are a direct replacement for previous Twisted Wedge heads and work with all Twisted Wedge specific pistons. True but it seems excessive to me. E7 heads use 1.78 / 1.48 just like the 60s stuff. Tech-Sheet. What cam specs and static CR? Ford's 302 crate engines use Boss 302 iron blocks. The only caveat to all this is that the Twisted Wedge heads do limit valve lift (0.600 inch) and duration on stock pistons due to their repositioned intake valvejust so you know. 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. These were available in stock and have the right size intake valves so I grabbed them instead. Maximum output for less money!. For use on pre-pollution controlled vehicles only. 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Here you can see exactly where each engine outshined the other, and by how much. 02 intake/1. 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. Fits on Dodge ramcharger, monaco, w100 series, sierra, pioneer, d300 pickup, d100 series, custom. They are rugged and ribbed internally and externally for more strength. 302/351 X2 Head. The DZ 302 used a 1.5:0 ratio, while the Boss 302 head used a larger 1.72:1 ratio. No mention of those holes in the instructions. Not true! Other Intakes >> Application. Plus we used cam dial-in and it was only off a half degree. Does any 351 Cleveland head fit it? . Stroking an engine is not going to reduce your engine rpm. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. 289 & 302 (Except Boss 302), Dual Plane [Natural] (27) $207.99. Great performance didnt notice any quality issues or burred edges when they came in. Fords incredible 1969-70 Trans Am BOSS 302. Not sure about the 5089. . . Batten cyl heads was instrumental in developing the high port exhaust for the Dyno Dons and Bob G's and Jack Roushes. Same transmission, run a 351W flywheel/flexplate (same as a C). Inline and < 15* valve angle such as World Products Man O' War 10* heads promote very good performance. Cross Boss 302 Mustang off highway use. We'd love to test 'em all, but we decided to line up as many performance small-block Windsor Ford heads as we could find, as long as they were available complete for less than $1,350 for the pair. 09 of shims installed so they look good. You have to rev it to the moon to really make any power.
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