Lethal Performance is your high performance warehouse for all your Ford Mustang performance parts and tuning needs! 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. Cylinder heads from a Boss 302 … 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. 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. Now, back in the day, Boss 302s were made by combining Ford 302 small-blocks with the new heads designed for … Copyright 2021 Lethal Performance Inc. All Rights Reserved. CHI offers a number of 3V head configurations, or more accurately port volumes (and attending flow rates). List, Lethal Performance, Inc. 3161 Fairlane Farms Rd Suite 8 Wellington, FL 33414. Cylinder Head, 180cc, Flat Tappet, Aluminum, Assembled, Ford, Small Block Windsor 289/302/351, Each. The oiling system upgrades were critical for our high-rpm needs. What the Boss 302 and Cleveland heads did share was tremendous airflow potential thanks to cavernous port volumes. Specializing in Mustang GT, GT500 and SVT Cobra Terminator … With its sporty looks, performance attributes, and scarcity, it … Unfortunately for Ford fanatics, the Cleveland family died out after a short run of just 4-5 years. 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 … 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. 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. Reply. 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. Track Boss 8.2 intake manifold was designed to fit a 302/8.2 deck height block with 2V Cleveland heads. They'll fit the 2011-14 … The Boss 302 Mustang was first produced in 1969 and almost immediately became an automotive legend. A standard Cleveland head's flow numbers of 278 cfm on the intake and 178 cfm on the exhaust are quite impressive. 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. 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. This cylinder head is no longer offered by Ford Performance. JLT Performance cold air intake track test at Bradenton Motorsports Park. 1 - 1 of 1 Posts. It constists of the block, heads… 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? 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. 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? 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. 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. Also, make sure to seal the Cleveland water passages located on the deck surface before using them on a Windsor application. `` OEM '' style … this time around, it 's a rather stock-looking Boss 302 Ford we selected set! Oil pan and windage tray matched to a drifting star as he slides around Track! 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