Now, back in the day, Boss 302s were made by combining Ford 302 small-blocks with the new heads designed for Ford's 351 Cleveland. Reply. Cylinder Head Bolt Kit, Hex Head, Chromoly Steel, Black Oxide Finish, Ford 289/302, Each. With the aftermarket in full swing, 5.0L Windsor owners no longer starred longingly at the flow offered by their Cleveland counterparts. List, Lethal Performance, Inc. 3161 Fairlane Farms Rd Suite 8 Wellington, FL 33414. Join the discussion. In stepping things up, we decided to utilize the same short-block, though we did have to disassemble the motor to have valve reliefs cut into the pistons for our more aggressive cam profile(s). The Comp roller cam checked in with a 0.731/0.716 lift split (with 1.73:1 rocker), a 252/264 duration split at 0.050-inch, and a tight 107-degree lobe separation angle. The Motorsport block is set up for a roller cam and lifters. The CHI heads feature a complete Ferrea valvetrain, including Competition Plus, swirl-polished, stainless steel valves (2.19/1.74), double valvesprings designed for the over 0.700-inch-lift solid roller cam(s) we were going to use, and titanium retainers. Just as with the stock Boss 302, the modified version was run with a set of long-tube Hooker Super Comp headers. A core is an old engine. or … … In Stock (more than 10 … The casting number of the D1ZE blocks and … A piston-to-valve clearance issue required we run the cam a minimum of 3 degrees retarded, but this didn't seem to hurt power production in our tested rev range. JavaScript seems to be disabled in your browser. The pistons featured small domes and valve reliefs designed to fit the stock Boss 4V (Cleveland) heads to produce a static compression ratio of 10.5:1 using the stock 60cc combustion chambers. This is a D0ZE-6090-A Boss 302 head casting with 2.19/1.72-inch valves. With its Edelbrock Performer RPM 351C 2V canted-valve heads, a beyond-radical '69 Boss 302 intake manifold by Wilson Manifolds, a Comp Cams hydraulic-roller bumpstick and valvetrain … … This was done to end up with an … Up for sale is a set of 1970 Boss 302 heads, Attached Thumbnails . We also threw on a Holley 950 HP carb, and tried a few different carb spacers, as well as lash adjustments on the combination, with a lash of 0.010-inch on both the intake and exhaust working best with the Comp cam. Pictures shows not BM, but Shelby T/A Racing port pattern (left) and Stock 302 … That Ford recently revitalized the name for its latest line of 5.0L-based crate engines adds fuel to the fire, but know that the original Boss 302 was the most powerful factory 5.0L ever offered by Ford up until 2011. Not bad considering we were dealing with a static compression ratio near 10.5:1. Ford Performance Parts Boss 302R bare cylinder heads are the same brand new, OEM production cylinder head castings used on the Boss 302 and 302R race cars. Trick Flow Specialties TFS-92005 - Trick Flow® Cylinder Head Bolt Kits. Actually, a number of manufacturers now offer aftermarket Cleveland heads, thankfully in aluminum. Provisions … These heads offered a number of desirable features, including a tall intake port roof design, which provided a generous short-turn radius to maximize flow with a given cross section and port volume. Since we were looking to maximize power production and the short-block was already broken in from its original running in stock Boss 302 configuration, we took the liberty of running ultra-light synthetic oil. Many have used the intake with 4V head also with success. In stock trim, the original Boss 302 produced peak numbers of 373 hp and 325 lb-ft, pretty impressive numbers considering the stock Boss 302 was rated at only 290 hp and a like amount of torque. It … You must contract him to get the "OEM" style chamber. Part Number: FLK-203-505FT Not Yet Reviewed You must have JavaScript enabled in your browser to utilize the functionality of this website. Truth be told, the Boss 302 … Lethal Performance is your high performance warehouse for all your Ford Mustang performance parts and tuning needs! A stock 1970 Boss 302-spec solid, flat-tappet cam was used and offered a tad over 0.500-inch lift and 228 degrees of duration at 0.050. The 1969 302 C9TE “E” truck head has a 69-cc chamber. Not quite. Join the discussion. Save Share. Designed primarily for use in the SCCA Trans Am series, the Boss 302 was a result of crossbreeding the 302 Windsor short-block with the then-new 351 Cleveland heads. BOSS 302. Cylinder Head, 180cc, Flat Tappet, Aluminum, Assembled, Ford, Small Block Windsor 289/302/351, Each. With expert porting on the intake and exhaust, Dr. Js was able to increase the flow rate of the CHI heads to more than 345 cfm at 0.700-inch lift. Description Track Boss 8.2 intake manifold was designed to fit a 302/8.2 deck height block with 2V Cleveland heads. When development began on the base Coyote head, Ford engineers were presented with another challenge: the 2012–2013 BOSS 302 cylinder head, which was also known as … Since the CHI heads were sized between the original 2V and 4V heads, CHI naturally designated them the 3V. Most customers do and just pay the core fee upfront. The oiling system upgrades were critical for our high-rpm needs. Reply. Cylinder heads from a Boss 302 … The Boss 302 Mustang was first produced in 1969 and almost immediately became an automotive legend. Boss 302 Cleveland/Windsor small-block hybrid: The Boss 302 engine was a 351 Cleveland cylinder head bolted onto a Windsor shortblock, making the first “Clevor” hybrid. The contact information at RoushYates is: Roush Yates c/o Todd English tenglish@roushyates.com Direct Line: 704-360-1336 Fits 302 … Now, back in the day, Boss 302s were made by combining Ford 302 small-blocks with the new heads designed for … The heads were now capable of supporting more than 700 hp-more than enough for our 500hp 302. Power Numbers-Boss 302 Vs Modified Vs Cam Research, Prepping a Mustang 6R80 Automatic Transmission for 1,000 horsepower, Using Livernois MyCalibrator Touch for Better Performance on a Twin Turbo 2.7L EcoBoost Ford Fusion Sport. Fits 2011-2012 Mustang GT, Boss 302, Boss 302S and Boss 302R; Production cylinder head used on the BOSS 302 and 302R race car; Fully CNC'd ports and chambers; Loaded head … Having exceeded 540 hp with our CHI-headed 302, we couldn't help but wonder how much cam and compression would be required to top the 600hp mark? It is a closed-chamber Cleveland head casting with cooling passages for the Boss 302 … Cleveland parts are a dwindling resource, Boss 302 … Additional upgrades included replacing the stock Boss 302 pan and windage tray with a much-improved version from Moroso. Properly attired, the 351 and 400M engines can be made to produce serious power, but Ford decided that the inline-valve Windsor family would carry the performance torch for Ford right through to the introduction of the now-famous 5.0L Mustang. Ford guys, even young ones just cutting their teenage teeth on the Ford mod motor, should at least be familiar with the term Boss 302. While the CHI heads offered CNC combustion chambers and an impressive 320 cfm right out of the box, they were given the once over by the gang at Dr. Js. Given the port-alignment difference between the CHI 3V, and either the produc-tion 2V or 4V, neither of the factory Ford intakes will fit the CHI heads. Ford GT40P 302 5.0L 4 Bar Cylinder Head Assembly Genuine OEM SET / Pair (Fits: Ford) 5 out of 5 stars (10) 10 product ratings - Ford GT40P 302 5.0L 4 Bar Cylinder Head Assembly … The original version of this engine was used in the 1969 and 1970 Boss 302 Mustangs and Cougar Eliminators and was constructed by attaching heads designed for the planned 351 … It constists of the block, heads… PERFORMER RPM™ CYLINDER HEADS PERFORMER RPM CLEVOR FEATURES: Direct bolt-on for Windsor blocks including the 289-302 and 351W, allowing the creation of "Mock Boss" 302 or … The Ultimate Source for Mustang News and Reviews, Ford Boss 302 Engine Build - Build A Better Boss - Tech, Installing a ProCharger F-1A-94 In Search Of 8-Second Timeslips, Prepping a Mustang 6R80 Automatic Transmission for 1,000 HP, Unlocking EcoBoost Performance with a Livernois MyCalibrator Touch Tuner, Combining JLT Performance, a 2018 Mustang GT with Li Tuning & Racing, GripTec Eliminates Supercharger Belt Slip, Riding shotgun in Vaughn Gittin Jr.’s Formula Drift Mustang RTR. For this, CHI manufactures its own line of matching 3V intake manifolds. JLT Performance cold air intake track test at Bradenton Motorsports Park. Care must be taken when installing the CHI heads, as there is a definite right and left cylinder head-the heads must be installed with the water passages toward the front of the engine so they line up with those in the intake. Though slightly smaller in specs, the Cam Research Corp cam offered both more average and peak power numbers than the larger Comp cam (admittedly not specifically made for this application). What the Boss 302 and Cleveland heads did share was tremendous airflow potential thanks to cavernous port volumes. Continue with Facebook. Related: boss 302 pistons 351 cleveland heads boss 302 block boss 302 valve covers boss 302 engine boss 302 intake boss 351 heads 289 hipo boss 302 intake manifold boss 302 shaker 1970 boss 302 heads boss 302 head The only aluminum head compatible with a Boss 302 piston (domed that is) is a Scott Cook Manufacturing head from Australia. For dyno use, we installed a 950 HP Holley-again more than enough carburetion to reach our goal of 500 hp. This is what it is like…. The Moroso oiling system included a full-length, louvered windage tray matched to a deep-sump oil pan and matching pick up. researchcorp.com) in Englewood, Colorado. Many have used the intake with 4V head also with success. Save Share. This was basically a hipo 302 block with 351c heads on it. Specializing in Mustang GT, GT500 and SVT Cobra Terminator … Boss 302 Mustang From Wikipedia, the free encyclopedia The Mustang Boss 302 is a high-performance variant of the Ford Mustang originally produced by Ford in 1969 and 1970, … Did BM raise (fill) the bottom of the intake ports in the Boss 302 cylinder heads and intake manifold or keep the regular tall height of the ports? With its sporty looks, performance attributes, and scarcity, it … That being said, we still have to recognize that the late-model 5.0L Windsor-based engine jump-started the modern blue-oval performance revolution. Truth be told, the Boss 302 was introduced before the Cleveland, and the Boss 302 heads differed slightly from their Cleveland counterparts by way of the coolant passages. Ford Performance's production cylinder head assembly used on the Boss 302 and the Boss 302R race car comes loaded, minus only camshafts, rocker arms and lash adjusters. Of course, this all changed when guys like Airflow Research, Dart, and Trick Flow started offering performance aluminum heads for the 5.0L. Due to the EU’s Global Data Protection Regulation, our website is currently unavailable to visitors from most European countries. It's a good block; the original Boss 302 blocks had 4 bolt mains and we had screw-in pipe plugs instead of the brass welch plugs. But that is another dyno story for another day. This cylinder head is no longer offered by Ford Performance. 1 - 1 of 1 Posts. Track Boss 8.2 intake manifold was designed to fit a 302/8.2 deck height block with 2V Cleveland heads. The Cam Research Corp roller cam offered a similar 0.721/0.724 lift split, a slightly smaller 245/249-degree duration split, and an equally tight 102-degree lobe separation angle. Companies like Edelbrock, AFD, Pro Comp, Trick Flow, and Cylinder Head Innovations (CHI) have all tooled up to produce aluminum heads for Cleveland applications. … Ford originally offered the Cleveland heads in both 2V and 4V configurations, meaning essentially the engines were fitted with two-barrel or four-barrel carburetion. Like the heads, the intake was turned over to the flow experts at Dr. Js to ensure that the manifold could keep pace with our ported 3V heads. … Core checks are sent within 90 days after core is mailed off; What is a core? Continue with Google. Dodge Hellcat Charger / Challenger 2015-2019, Ford Performance Boss 302R CNC High-Flow 5.0L Cylinder Head (RH), Ford Performance Boss 302R CNC High-Flow 5.0L Cylinder Head (LH), Ford Performance Boss 302R Head Changing Kit, Ford Performance 2011-2014 Mustang 5.0L Production Cylinder Head (LH), Ford Performance 2011-2014 Mustang 5.0L Production Cylinder Head (RH), Ford Performance M-6067-M50BR11 Boss 302R head Changing Kit - 11mm Head Bolts, Ford Performance M-6049-M52A 5.2L "GEN 2" RH Cylinder Head, Ford Performance M-6050-M52A 5.2L "GEN 2" LH Cylinder Head. Instead, the head is available from RoushYates Parts. Unfortunately for Ford fanatics, the Cleveland family died out after a short run of just 4-5 years. 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 716-inch head bolts, using … On the first pull we knew we had a winner, as the Cam Research cam not only produced higher peak torque numbers of 418 lb-ft, but also managed to bump our peak power up to 542 hp. Speaking of high rpm, the mild stock Boss 302 stick from Schneider cams was not going to get the job done, so we initially swapped in a roller profile from Comp Cams that we happened to have from a previous project. View as Must be a 302; Yes, you may keep your core! Sign Up today for our FREE Newsletter and get the latest articles and news delivered right to your inbox. With the Edelbrock part #7129 Performer RPM E-Boss 302 intake manifold, you can build a mock Boss engine by using a standard 302 block and Edelbrock Performer RPM Cleveland cylinder … Lucas Oil supplied some 5W Pro Stock oil designed for high-rpm race engines with good oiling systems. Though not designed specifically for our CHI-headed 302, the Comp roller worked well and allowed us to exceed the 500hp mark. To better the already stout stock 4V Cleveland head, CHI not only improved the airflow, but also reduced what many consider to be an excessive (245cc) port volume. 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. There were no Boss 302 Mustangs produced in 1971, but the tooling had already been set up for the Boss 302 blocks and heads. The CHI single-plane intake we are using was designed specifically for use with the 208cc 3V heads on a 302W block (8.2 deck height). It is this head flow that kept the Chevy (Trans Am and drag racing) motors of the period from matching the power offered by the canted-valve Boss/Cleveland-headed Fords. Since the goal for our 302 was to exceed 500 horsepower, we selected a set of the 208cc 3V aluminum CHI heads. Some of the CHI intakes for the taller-deck motors are available with Dominator flanges, but our 208cc intake came equipped to accept a standard 4150 Holley carburetor. This is said to be the real key to the success of the CHI castings. The canted valve arrangement permitted the use of 2.23/1.71-inch intake/exhaust valves, which were considerably larger than other Ford small-block head … A standard Cleveland head's flow numbers of 278 cfm on the intake and 178 cfm on the exhaust are quite impressive. Ford Performance Engineers have designed the replacement for the legendary BOSS 302 and 351 blocks using the latest technology and manufacturing techniques from both the production … Obviously, the Boss 302 was purposely underrated by Ford, but just how much better could we make it? Related: boss 302 pistons 351 cleveland heads boss 302 block boss 302 valve covers boss 302 engine boss 302 intake boss 351 heads 289 hipo boss 302 intake manifold boss 302 shaker 1970 boss 302 heads boss 302 head Up for sale is a set of 1970 Boss 302 heads, Attached Thumbnails . The 351c itself, however, did not appear until 1970. Since we needed to rev the engine to at least 7,000 rpm to reach the 500hp mark, we needed a sturdy foundation, which came from Demon Engines. Once we had emptied our bag of tricks, we were eventually rewarded with peak power numbers of 520 hp at 7,200 rpm and 399 lb-ft at 5,700 rpm. The only aluminum head compatible with a Boss 302 piston (domed that is) is a Scott Cook Manufacturing head from Australia. Ever wondered what it was like to strap in next to a drifting star as he slides around the track in a 1,200-horsepower Mustang? We apologize for this inconvenience and encourage you to visit. Not only do they offer superior flow over a stock Cleveland or 351/400-M head, but they also offer the flexibility to work on the standard 302 or 351 Windsor block to build your own version of a Boss 302, or the infamous ""Clevor"" engine! 1 - 1 of 1 Posts. Also, make sure to seal the Cleveland water passages located on the deck surface before using them on a Windsor application. We swapped out the original Comp cam and installed the stick from Cam Research Corp (www.cam The first appearance of these was on a machine known as the Boss 302. Grid Other aluminum heads … They'll fit the 2011-14 … 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. Copyright 2021 Lethal Performance Inc. All Rights Reserved. Designed primarily for use in the SCCA Trans Am series, the Boss 302 was a result of crossbreeding the 302 Windsor short-block with the then-new 351 Cleveland heads. 1970 Boss 302 = 58cc 1970 351C 4V = 63cc 1971 351C 4V = 66cc In my opinion it would be a shame to bugger up the Boss 302 heads by adapting them to the 351C. or … Casting numbers accurately identify head castings. The Boss was topped off with an original aluminum dual-plane intake, 750 Holley carb (they came with 780s originally) and a set of 1 3/4-inch Hooker headers. Until the aftermarket jumped on the 5.0L bandwagon, Ford enthusiasts were forced to make due with ported factory heads. Purpose-cast 302 heads are marked “302.” This is a C9TE truck casting with a single bump above the 302, also known as the “E” head. To pull this off, we needed a durable mule, so we chose Ford Racing's Boss 302 345hp crate engine that comes with a set of aluminum heads and actuated by a 0.480-inch lift … CHI offers a number of 3V head configurations, or more accurately port volumes (and attending flow rates). With the Windsor boys finally taking point, where does that leave Boss and Cleveland fans? The heads carried on in their smaller 2V configuration in the 351 and 400M motors, but these were basically torque-oriented smog mills designed for heavy hauling, rather than outright performance. This time around, it's a rather stock-looking Boss 302 Ford. The short-block consisted of a forged steel 3.0-inch crank from Pro Comp, a set of factory 5.135-inch forged rods, and a set of forged aluminum pistons from Probe Racing. Cylinder heads … Cleveland (and Boss 302) heads will work on a standard 302 Windsor block, but you have to buy a special intake manifold, and the company that makes them went out of … Continue with Google. Boss 302 Cleveland/Windsor small-block hybrid: The Boss 302 engine was a 351 Cleveland cylinder head bolted onto a Windsor shortblock, making the first “Clevor” hybrid. The increased-rate valve springs can support 12mm intake and 13mm exhaust max lift (base head … The water passages of the Boss 302 heads were slightly altered from the Cleveland design for proper alignment with those on the 302 short-block; the combination yielded 10.5:1 compression. Continue with Facebook. © 2021 MUSTANG 360 NETWORK MOTOR TREND GROUP, LLC.ALL RIGHTS RESERVED. If you've ever checked out the results of the Engine Master's Challenge in either of our sister books, Popular Hotrodding or Engine Master's Challenge, you've likely heard of CHI as its heads started with a Second Place finish in their first outing, and were on the winner's list twice, once in 2004, and again in 2006. Installing a GripTech Pulley on a Vortech-supercharged 2018 Mustang eliminates belt slip and adds boost. To put this into perspective, even a fully ported, factory iron Windsor head would not flow as well as a stock Boss 302 or 351 Cleveland head. Provisions to add fuel … Through many generations and different names, from the 302 Windsor to the 302 “Boss” engine, this 302 line of high-performance powerhouse from Ford Motor was a … CHI also offers a number of other intakes for use on the taller 9.2-inch 351C, 9.5-inch 351W, and even the 10.3-inch 400M blocks. Some of us may be too young to actually have driven an original Boss 302 back when they were introduced in 1969, but all Ford guys should know the history of such an impressive performer. Having easily surpassed the 372 hp put down by the stock Boss 302 and officially reached our goal of topping the 500hp mark, you'd think we'd call it a day and head down to the local tavern. The 1 3/4-inch headers fit the dyno perfectly and exhaled through a set of 3-inch collector extensions. You must contract him to get the "OEM" style … Truck head has a 69-cc chamber we swapped out the original Comp cam installed. Have used the intake with 4V head also with success machine known as the Boss 302 Ford the!, Ford 289/302, Each a drifting star as he slides around the Track in a 1,200-horsepower Mustang,. Was run with a much-improved version from Moroso delivered right to your.. Seems to be disabled in your browser 950 HP Holley-again more than enough for our high-rpm needs matched. 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