We learned on the first few pulls that we had too much carburetor with our 750 cfm Holley 4160 and too little camshaft. Was running 850 dbl pump Holley with 4:56 gears, and I was running 12:20s at over 112 mph in the quarter. 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. Intake - 2.23 inches quick fuel 650 performer rpm intake these heads smallest trick flow cam. I bought an external mouse/keyboard because the distance from the keyboard and mouse to the edge of the laptop are a bit far for my small hands. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. Won't work with the 289 stroke. Ford has always been a car company that dared to go where no automaker had ever gone before. 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. Did you get them at a Chevy garage sale? Ford took on the world with the GT40 supercar. Works with most standard components. Ever wonder what those camshaft specification numbers really mean and how they affect engine performance? Dimensions in Inches (LxWxH): 24.1 x 24.1 x 8.7. Theyre fully assembled with valve springs, retainers, locks, guideplates, studs, and seals. 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. Put on a 351w in a 1979 Tbird. See it here: yes its ben done. A tad shorter then a 351W but a little wider due to the size of the heads. They had to combine a four-inch bore from a 327 block with the three-inch stroke from the 283, Holdener elaborates. Our test heads came with the larger intakes that clearly contributed to these heads' strong showing. stud kit is of poor quality everything else in my order was good quality. Due to the larger Cleveland-style heads, the Boss 302 weighs somewhat more than the normal 302, tipping the scales at 500 lbs. Edelbrock heads are available in two different versions, with either 1.94- or 2.02-inch intake valves. The Ford heads did well during the testing, making a peak of 362 hp. [] Heres a close up of the head Marvin is using on our 351C build. ported and polished heads can also provide good results, but they may require more work to install and tune properly. I think Im in love, lol!!. Great top end with these heads also. Opens in a new window or tab. Performance Distributors Keeps The Spark Alive With SOS, A New Diesel Piston That Increases Power And Reduces, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop, Melling Offers New Timing Kits for Ford 4.6L and 5.4L SOHC, Reborn Retro Blower Packs Positive-Displacement Power For Fox, EngineLabs Tool Of The Month: Summit Racing Lb-In Torque, Why You Should NOT Emissions Delete Your Diesel, Can A Cold Air Intake Really Help Your Trucks, Ask The Expert: We Want Your Questions For Canton Racing, The Answers: DeatschWerks Responses To Your Fuel System, SEMA 2022: GEARWRENCH Leveled Up With Distinct Quality Hand, EngineLabs Tool Of The Month: Summit Racing AN Wrench, HOLY SHIP! They'll work but have you got the Boss heads? Jul 7, 2011 I've an Offy Boss 302 tunnel ram that I'd like to use in a build and was wondering aside from the 4V cast iron heads, which aluminum heads will work with this combo. First of all. This page last updated: February 3, 2022. The cam featured 290 degrees duration and .477 in (12.1 mm) of lift. We tried this formula to see what our basically stock BOSS 302 would do. A forum community dedicated to hot rod owners and enthusiasts. [IMG]http://www.dslextreme.com/users/jbooth/sidenew1.jpg[/IMG][IMG]http://www.dslextreme.com/users/jbooth/enginenew1.jpg[/IMG]. Renegade Street. The connecting rods and crankshaft are made of forged steel, and the heads are aluminum with roller rocker arms. Max effort class rule stuff runs over $2K. That means 305 maximum cubic inches. The supplied ones are generic and poor fitting. . Pic 2 is a spot next to a water port on the intake surface where it looks like the facing tool tilted some. To pull this off, we needed a durable mule, so we chose Ford Racing's Boss 302 345-hp crate engine that comes with a set of aluminum heads actuated by a .480-inch lift B303 hydraulic. 030 shim. Im looking for three Ford Cleveland 4V engines. Any who, this is a work laptop, and it started out pretty fast, but over time, it eventually slowed down. (Image/Jim Smart) Although these are 1969-70 BOSS 302 heads, they []. 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. 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. Get big power on a small budget with BluePrint Muscle Series cylinder heads! 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. Guys if you want to make serious power. But, I just came across this website and happened to ask about B. Sizemor's 6. Pair. 2023 Power Automedia. stud-mounted roller rockers as the current Ford Racing 429 Cobra Jet heads, and the standard Cobra Jet intake and exhaust manifolds bolt right on. This one appeared great at first use and for a couple of months. 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. Junk ass Chevrolet stroker engines.puleeeeeze. Pair. saving. A borescope down the intake revealed lots of oil in the intake runners near the valves. 302/351 X2 Head. Alum. Does anyone remember the six cylinder heads they made for Bruce Sizemore. It was what the SCCA mandated for street homologation. http://fordsix.com/forum/viewtopic.php?t=33048, 1971 Ford Maverick - Budget 10-Second Turbocharged Maverick Coupe - Car Craft Magazine. Thanks to all who helped us get here. 22-25 Ft/Lbs - Iron Heads. . . Perfect fitment, good quality heads on a budget! Assembled. There are many different types of cylinder heads for Ford 302 engines, so it is difficult to make a definitive conclusion about them. There is no flat spot and these engines will pull from 2000 against any rival including a Windsor. I was actually pleasantly surprised at the swirl polished valves and the large spring pockets for if you want to run larger springs with a monster cam! Not to mention the 50lbs you lose off the front. The compression ratio increase is approximately 3/10 of a percent with each 1/8 stroke. 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. For a better experience, please enable JavaScript in your browser before proceeding. 09 of shims installed so they look good. The "civilian" Boss 302 engine had a 4 bolt main block with screw-in freeze plugs and a forged steel crank. That may or may not make your ultimate choice any easier, but if so, you can thank us later. It will have screw-in core plugs and a four-bolt main block if it is a Boss 302. which will help take the wait off the rear main bearing. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. 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 advice would be greatly appreciated. For the 1968 Trans Am season, Ford took the 302 cubic inch Tunnel Port out there in search of victory. The 306-horse 289 cubic inch High Performance small-block V-8 in Shelby GT350s took on Corvette and the rest and managed to spank Americas sports car in SCCA competition. SB Ford WP Man O'War iron block/Man O'War aluminum head Head Bolt Kit. It was rated at 10.5:1 compression and 230 bhp (Shelby was rated at 250). While it only had .480-inch of lift, that duration would really allow the RPM to climb. 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. I changed the thermostat so it would dump alittle more gas in her no problems so for. 1.90/1.60 in Valves. one of the hotrod magazines did an article on the combo back in the 70's. Find Parts and Accessories Boss 302 aluminum heads KEYWORD and get Free Shipping on Orders Over $99 at Summit Racing! Assembled. Comparing the cylinder heads on paper, using data collected by Holdener for a previous article, the Boss heads clearly come out ahead. 1.90/1.60 in Valves. 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. Best for 302-351 cubic inch engines. Plus, they give you more power behind the wheel and in your wallet! After idling for a couple of minutes the engine will start smoking horribly. The Ford head uses a net-lash design that makes the valvetrain non-adjustable. Then Ill be looking for upgrades. For Use w/289/302/351 Windsor-Style Engines. 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. To clear up a few questions, the combustion chambers are 60cc, not 64cc. One side opted for mild lift and more duration, and the other went for more lift and milder duration. While the tunnel port wasnt a complete success, thats how the Boss heads came to be. Build your own custom newsletter with the content you love from EngineLabs, directly to your inbox, absolutely FREE! A guy near here used the advice on the link below, starting with a 67 289 2V engine. Its main function is to seal the combustion chamber and provide a surface for the intake and exhaust valves. The compression ratio is 8. Not even close to what I thought I should be getting in a brand new set of heads. I called AFR about the problem and their only suggestion is to install a crankcase vacuum pump. Suddenly these heads arent so appealing. One thing I found particularly awesome about these heads is the spark plug holes and threads. However, in the upper RPM range, the Boss 302 shows a definite, significant advantage over the DZ 302. The 1968 Trans Am season was a disaster. I was still only available with the special 302ci 290 hp high output engine. E7 heads use 1.78 / 1.48 just like the 60s stuff. 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. No votes so far! I think the higher RPM one had larger valvesand ports, right? 546hp @5600 rpm also had 630 ft-lbs torq@ 4400 rpm. There was dust and paper bits all over the keyboard and screen!! The RHS heads come out of the box with a very nice-looking casting, and back that image up with respectable performance. World contributed the lone cast-iron head to our Ford small-block test. Inline and < 15* valve angle such as World Products Man O' War 10* heads promote very good performance. second time I have been disappointed with Edelbrock. 1-330-630-1555 1-888-841-6556. . Do the torque in 2 steps, first just hand tight, second with the torque wrench. Both these motors were factory-rated at the same 290 horsepower, but that number is suspect, says Holdener. Great article is there a video available ? They pull much harder through the midrange than the 351W heads they replaced on my 302 Ford. I used them with a Comp Cams 274XE cam and a QFT 600cfm carb. Not true! You will need the boss piston to go with the canted valves.. No. Both had dual-plane high-rise intakes and big Holley carbs. Ive had several other brands, but HP has been the best. For use only with Special heads . They show to be suitable for the 221-302 Ford Small Block. The head bolts used on a Boss 302 were a flanged-style head bolt. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! I am presently installing a 302 clevor into a 83 mustang GT. But the springs they come with are for a hydraulic roller cam. 98 sold Hack said: The size of 302 valves has varied a little in some performance versions over the years. 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. Aluminum. When I set the carb I get a bouncing vacum needle at idle, Ive been told thats a sign of a sticking valve. Purchased a long block on CL. Aluminum. The holes are just big enough for the spark plug socket, which guides it in perfectly. Fits on Dodge ramcharger, monaco, w100 series, sierra, pioneer, d300 pickup, d100 series, custom. 45 degree spark plug wires work great with these heads. The Dart castings would have been the Iron Eagle versions, and the Pro Comps are affordable in aluminum. Im not sure what has happened to Edelbrock, but their quality control sucks. 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. The DZ 302 in the Z/28 was a natural marketplace competitor to the Boss 302 from Ford. What looks like parting lines are huge in some places, one exh runner has a stick of Aluminum protruding into the runner (pic 1). the second head had not been full deburred from the milling process. This engine was built in the 80s by someone with way to much money.