302/351W "X2" Street Cruiser Assembled Aluminum Cylinder Head 64CC

$1,000.00

SKU: M-6049-X2 Ford Performance

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NEW AND IMPROVED "X2" CYLINDER HEAD IS MANUFACTURED FROM ALL-NEW TOOLING, MACHINED, AND ASSEMBLED WITH PREMIUM HARDWARE. THIS PROVIDES A FAST, EASY WAY TO BOLT ON SIGNIFICANT HORSEPOWER TO YOUR STREET CRUISER PACKAGE! 

Click HERE to read a detailed Mustang360 article on Ford Performance "X2" cylinder heads! 
 
  • For use on 289/302/351 Windsor-style engines¬†
  • High quality original equipment style 356-T6 aluminum castings, precision machined, and assembled with premium components
  • Includes Ford Performance¬†M-6507-J302¬†intake valves,¬†M-6505-G302¬†exhaust valves, and PAC¬ģ 1219X Ovate Beehive valve springs¬† ¬†¬†
  • Feature 10-degree locks, steel valve spring retainers and stock valve seals¬†¬†
  • High temperature exhaust valve seats
  • Includes bronze guides
  • Features wider valve cover gasket sealing rail to prevent leaks
  • Machined for gasket seat spark plug¬†¬†
  • Compatible with all Ford Performance roller camshafts and aftermarket hydraulic roller camshafts up to .600" lift¬†¬†
  • Work with many aftermarket intake manifolds, headers, and valve train components
  • Compatible with bolt down rockers 1.6-1.7 ratio, always check rocker arm clearance to valve springs with production rocker arms ¬†
  • Depending on lifter preload, Ford Performance Rocker Shim Kits¬†M-6529-A302¬†or¬†M-6529-B302¬†may be required
  • Each aluminum head weighs approximately 25 lbs. lighter than each production cast iron head¬†
  • Each head is leak tested prior to assembly¬† ¬†

Specifications:
  • Combustion chamber volume 64cc¬†
  • Intake port volume 188cc
  • Exhaust port volume 63cc¬† ¬† ¬† ¬† ¬† ¬†
  • Intake flows approximately 230 cfm at .600" lift (at 28" of H20)¬†
  • Exhaust flows approximately 160 cfm at .600" lift (at 28" of H20)¬†
  • Premium stainless steel valves - 1.94" Intake and 1.54" exhaust.
  • Closed spring pressure is 145# @ 1.800"¬†¬†
  • Open spring pressure is 358# @ 1.175"¬† ¬†


Notes:
  • Designed to be used on Ford Performance BOSS blocks;¬†M-6010-BOSS302,¬†M-6010-B302BB,¬†M-6010-BOSS35195,¬†M-6010-BOSS35192¬†and¬†M-6010-BOSS351BB¬† ¬† ¬†¬†
  • Use Ford Performance¬†M-6065-BOSS¬†Head Bolt Set or Ford Performance¬†M-6014-BOSS¬†Head Stud Kit¬†
  • Use Ford Performance Head Gasket¬†M-6051-CP331¬†or¬†M-6051-S331¬†or for "Big Bore" application, use¬†M-6051-R351¬†
  • Must use Ford Performance¬†M-6065-D289¬†Head Bolt Kit to install heads on 289/302 production blocks
  • Ford Performance "X2" heads use either GT-40 or aftermarket intake manifolds. Check¬† manifold for port match; not all intakes are compatible due to tall high-flow intake ports
  • "X2" cylinder heads use Motorcraft¬ģ AGSP-32C spark plugs¬† ¬†
  • Use Felpro¬ģ exhaust gasket part number 1415¬†
  • Will not fit 1986 5.0L with flat-top pistons unless pistons are notched for valve relief¬†¬†
  • Cylinder heads are sold individually¬†