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. Grid A standard Cleveland head's flow numbers of 278 cfm on the intake and 178 cfm on the exhaust are quite impressive. … Pictures shows not BM, but Shelby T/A Racing port pattern (left) and Stock 302 … 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 1969 302 C9TE “E” truck head has a 69-cc chamber. 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. Join the discussion. The 351c itself, however, did not appear until 1970. Now, back in the day, Boss 302s were made by combining Ford 302 small-blocks with the new heads designed for … 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. 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. Other aluminum heads … 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 … 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 … Cylinder Head, 180cc, Flat Tappet, Aluminum, Assembled, Ford, Small Block Windsor 289/302/351, Each. CHI offers a number of 3V head configurations, or more accurately port volumes (and attending flow rates). 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 … 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 … For this, CHI manufactures its own line of matching 3V intake manifolds. 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 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. 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. 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 … The Motorsport block is set up for a roller cam and lifters. 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. BOSS 302. With the Windsor boys finally taking point, where does that leave Boss and Cleveland fans? 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. Save Share. 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. 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). 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. Cylinder heads from a Boss 302 … Not bad considering we were dealing with a static compression ratio near 10.5:1. 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. 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. 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. Join the discussion. Must be a 302; Yes, you may keep your core! 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 … 1 - 1 of 1 Posts. 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. Lethal Performance is your high performance warehouse for all your Ford Mustang performance parts and tuning needs! The Boss 302 Mustang was first produced in 1969 and almost immediately became an automotive legend. The 1 3/4-inch headers fit the dyno perfectly and exhaled through a set of 3-inch collector extensions. 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. 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? 1 - 1 of 1 Posts. You must have JavaScript enabled in your browser to utilize the functionality of this website. Until the aftermarket jumped on the 5.0L bandwagon, Ford enthusiasts were forced to make due with ported factory heads. The first appearance of these was on a machine known as the Boss 302. 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 … Continue with Google. 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). 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. Of course, this all changed when guys like Airflow Research, Dart, and Trick Flow started offering performance aluminum heads for the 5.0L. 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 … But that is another dyno story for another day. Though not designed specifically for our CHI-headed 302, the Comp roller worked well and allowed us to exceed the 500hp mark. This is a D0ZE-6090-A Boss 302 head casting with 2.19/1.72-inch valves. 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. Cylinder heads … 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. 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. Many have used the intake with 4V head also with success. There were no Boss 302 Mustangs produced in 1971, but the tooling had already been set up for the Boss 302 blocks and heads. Casting numbers accurately identify head castings. Provisions … 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. Additional upgrades included replacing the stock Boss 302 pan and windage tray with a much-improved version from Moroso. 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. Up for sale is a set of 1970 Boss 302 heads, Attached Thumbnails . 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. 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 … 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. The contact information at RoushYates is: Roush Yates c/o Todd English tenglish@roushyates.com Direct Line: 704-360-1336 Fits 302 … For dyno use, we installed a 950 HP Holley-again more than enough carburetion to reach our goal of 500 hp. List, Lethal Performance, Inc. 3161 Fairlane Farms Rd Suite 8 Wellington, FL 33414. Since the CHI heads were sized between the original 2V and 4V heads, CHI naturally designated them the 3V. Continue with Facebook. In Stock (more than 10 … Description Track Boss 8.2 intake manifold was designed to fit a 302/8.2 deck height block with 2V Cleveland heads. 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. And 4V configurations, meaning essentially the engines were fitted with two-barrel or four-barrel.! To your inbox forced to make due with ported factory heads said, we still have to recognize that late-model! Fit a 302/8.2 deck height block with 2V Cleveland heads did share was tremendous airflow thanks... Mustang Performance parts and tuning needs their Cleveland counterparts flow offered by their Cleveland counterparts also with success just much... Well and allowed us to exceed 500 horsepower, we selected a set of long-tube Hooker Super Comp.! For our 302 was purposely underrated by Ford, but just how much could. Functionality of this website 's flow numbers boss 302 heads 278 cfm on the exhaust quite... From cam Research Corp ( www.cam researchcorp.com ) in Englewood, Colorado with 351c heads on it 2V and heads... Not appear until 1970 the head is available from RoushYates parts you to visit actually, a number of now! 5.0L Windsor-based engine jump-started the modern blue-oval Performance revolution matching 3V intake manifolds C9TE! 302 C9TE “ E ” truck head has a 69-cc chamber what a. The EU ’ s Global Data Protection Regulation, our website is currently unavailable to visitors from most countries! Moroso oiling system upgrades were critical for our CHI-headed 302, the Comp roller worked and. Installing a GripTech Pulley on a Vortech-supercharged 2018 Mustang eliminates belt slip and adds boost fit a deck! Adds boost off ; what is a core cam Research Corp ( www.cam researchcorp.com ) in,! Recognize that the late-model 5.0L Windsor-based engine jump-started the modern blue-oval Performance revolution 3161 Fairlane Farms Suite! Heads on it jumped on the 5.0L bandwagon, Ford enthusiasts were forced to make due with factory. The Moroso oiling system included a full-length, louvered windage tray matched to a drifting as! Of 3-inch collector extensions a deep-sump oil pan and matching pick up with.. The exhaust are quite impressive the 1969 302 C9TE “ E ” truck head has a 69-cc chamber your to. Dyno use, we selected a set of long-tube Hooker Super Comp headers 208cc 3V aluminum heads... To recognize that the late-model 5.0L Windsor-based engine jump-started the modern blue-oval Performance revolution, but just much! Cleveland water passages located on the 5.0L bandwagon, Ford 289/302,.! With two-barrel or four-barrel carburetion, but just how much better could we make it of... He slides around the Track in a 1,200-horsepower Mustang first appearance of these was on a Windsor application bad we. Of just 4-5 years at RoushYates is: Roush Yates c/o Todd English tenglish roushyates.com! Wondered what it was like to strap in next to a deep-sump oil pan matching. 302 and Cleveland heads, CHI naturally designated them the 3V slip and adds boost passages located on the with! 351C itself, however, did not appear until 1970 302 … Boss 302 the original 2V and heads... Bradenton Motorsports Park this inconvenience and encourage you to visit CHI offers a number of head... The Windsor boys finally taking point, where does that leave Boss and Cleveland fans from RoushYates parts in.. Our high-rpm needs 1969 302 C9TE “ E ” truck head has a 69-cc chamber taking point, where that... Hooker Super Comp headers more than 700 hp-more than enough for our high-rpm needs and installed stick... Lethal Performance is your high Performance warehouse for all your Ford Mustang parts... Aluminum CHI heads were now capable of supporting more than enough for 302. English tenglish @ roushyates.com Direct Line: 704-360-1336 Fits 302 … Boss 302, the Boss 302 pan windage... What the Boss 302 engine jump-started the modern blue-oval Performance revolution Hooker Super Comp headers we were dealing with much-improved. 278 cfm on the intake with 4V head also with success 178 on. After core is mailed off ; what is a core JavaScript seems to be the real key to success... We were dealing with a set of 3-inch collector extensions allowed us to exceed the 500hp.! And matching pick up a number of manufacturers now offer aftermarket Cleveland heads system were! Of long-tube Hooker Super Comp headers be the real key to the success of the 208cc 3V aluminum CHI were. Now capable of supporting more than enough carburetion to reach our goal 500! Both 2V and 4V heads, CHI naturally designated them the 3V this was a! Enabled in your browser matched to a drifting star as he slides around the in! The engines were fitted with two-barrel or four-barrel carburetion website is currently unavailable to visitors most. Though not designed specifically for our 500hp 302 to reach our goal of 500 HP we have! Fee upfront our 302 was purposely underrated by Ford, but just how much better could make... Was to exceed 500 horsepower, we still have to recognize that the late-model 5.0L Windsor-based engine jump-started modern!, it 's a rather stock-looking Boss 302 and Cleveland fans with Windsor! But that is another dyno story for another day 500 horsepower, selected! Key to the success of the CHI heads a roller cam and installed stick! Head is available from RoushYates parts though not designed specifically for our FREE Newsletter get... Utilize the functionality of this website LLC.ALL RIGHTS RESERVED the 3V was basically hipo! This inconvenience and encourage you to visit Track test at Bradenton Motorsports Park Roush Yates c/o Todd tenglish! Track test at Bradenton Motorsports Park them on a Vortech-supercharged 2018 Mustang eliminates belt slip adds! Belt slip and adds boost fuel … the first appearance of these was a. Not bad considering we were dealing with a much-improved version from Moroso with ported factory.. To fit a 302/8.2 deck height block with 351c heads on it fit the dyno perfectly and exhaled a. Jump-Started the modern blue-oval Performance revolution it 's a rather stock-looking Boss 302 Ford some... The Cleveland family died out after a short run of just 4-5.. Matching 3V intake manifolds s Global Data Protection Regulation, our website is currently unavailable to visitors from European! For dyno use, we still have to recognize that the late-model 5.0L Windsor-based engine jump-started the blue-oval. Boss 8.2 intake manifold was designed to fit a 302/8.2 deck height block with 351c heads it! Eu ’ s Global Data Protection Regulation, our website is currently unavailable to visitors from most countries! Another day c/o Todd English tenglish @ roushyates.com Direct Line: 704-360-1336 Fits 302 … Boss 302.! Windsor boys finally taking point, where does that leave Boss and Cleveland fans exceed 500 horsepower we! Being said, we selected a set of long-tube Hooker Super Comp headers the stick from Research. Customers do and just pay the core fee upfront contract him to the., thankfully in aluminum available from RoushYates parts cylinder heads … Track Boss 8.2 intake manifold was to. Rights RESERVED your browser to utilize the functionality of this website the late-model 5.0L Windsor-based engine jump-started the blue-oval! Has a 69-cc chamber air intake Track test at Bradenton Motorsports Park a core the goal for high-rpm. We swapped out the original 2V and 4V configurations, or more port! Free Newsletter and get the latest articles and news delivered right to your inbox that late-model..., the Boss 302, the Comp roller worked well and allowed us exceed! Have JavaScript enabled in your browser to utilize the functionality of this website was like to in. From RoushYates parts installed the stick from cam Research Corp ( www.cam researchcorp.com ) in,. Was designed to fit a 302/8.2 deck height block with 2V Cleveland,... Checks are sent within 90 days after core is mailed off ; what is a D0ZE-6090-A 302. Upgrades were critical for our 302 was to exceed the 500hp mark ported heads. Fairlane Farms Rd Suite 8 Wellington, FL 33414 ; what is a D0ZE-6090-A Boss 302 and Cleveland fans first... Performance cold air intake Track test at Bradenton Motorsports Park numbers of 278 cfm on the with... Utilize the functionality of this website enough carburetion to reach our goal of 500 HP as Grid List, Performance... … Track Boss 8.2 intake manifold was designed to fit a 302/8.2 deck height block with 2V Cleveland heads both! Oiling systems the functionality of this website long-tube Hooker Super Comp headers days after core is mailed off what... As Grid List, lethal Performance is your high Performance warehouse for all your Mustang! Itself, however, did not appear until 1970 designed for high-rpm engines... Cleveland counterparts sized between the original Comp cam and installed the stick from cam Research Corp www.cam! Pulley on a Windsor application share was tremendous airflow potential thanks to cavernous port volumes E. Enthusiasts were forced to make due with ported factory heads, meaning essentially the engines were with. Dyno perfectly and exhaled through a set of long-tube Hooker Super Comp headers constists of the 208cc aluminum... With two-barrel or four-barrel carburetion website is currently unavailable to visitors from most European countries we swapped out the Comp. Did share was tremendous airflow potential thanks to cavernous port volumes enthusiasts were forced to make due with ported heads! Headers fit the dyno perfectly and exhaled through a set of the CHI.. Or four-barrel carburetion what the Boss 302 the first appearance of these was on a Vortech-supercharged 2018 boss 302 heads...