Ford Performance "X-Head" Aluminum Assembled 58CC (82-93 Foxbody, 94-95 Cobra/GT) DISCONTINUED

$195.00 (22%)
Part Number: 161 M 6049 X307



Please check out the Replacement Part: 302/351W "X2" STREET CRUISER ASSEMBLED ALUMINUM CYLINDER HEAD 64CC

New and improved Ford Racing "X-Head" Aluminum Assembled 58CC! Now comes assembled with beehive springs and hardware for a fast and easy way to bolt on 65 horsepower!

Product Features
  • For use on 289/302/351 Windsor-style engines
  • Intake flows approximately 240 cfm at. 550" lift (at 28" of H20)
  • Exhaust flows approximately 170 cfm at. 500" lift (at 28" of H20)
  • Machined for 1.94" Intake and 1.54" exhaust valve diameters
  • Ford racing X-heads use either GT-40 or aftermarket performance intake manifolds. Check your intake manifold for port match; not all intakes are compatible due to the tall high-flow ports.
  • Combustion chamber volume 58cc
  • Intake port volume 178cc, exhaust port volume 62cc
  • High temperature exhaust valve seats. Bronze guides
  • Designed for bolt-on rocker arms, machined for gasket seat spark plug. Compatible with some Ford Racing intakes, headers, and valve train components
  • High quality original equipment style 356-T6 aluminum castings, machining and components
  • Each aluminum head weighs approximately 22 lbs. approximately 25 lbs. lighter than each production cast iron head
  • These GT-40 style heads use AGSP-32C spark plugs

Please Note: Will not fit 1986 5.0L with flat-top pistons unless pistons are notched for valve relief.

  • Assembled with Ford Racing parts (M-6507-J302) intake valves, (M-6505-G302) exhaust valves, (M-6513-BH) Beehive valve springs. Closed spring pressure is 130#@1.800" 318# @1.200". Compatible with all Ford Racing roller camshafts and aftermarket hydraulic roller camshafts up to. 600 lift.
  • Designed to be used on Ford Racing Boss blocks (M-6010-BOSS302), (M-6010-B302BB), (M-6010-BOSS35195), (M-6010-BOSS35192) and (M-6010-BOSS351BB) blocks. Head Bolts (M-6065-BOSS) or Head Stud Kit (M-6014-BOSS) and Head Gasket (M-6051-CP331/S331), or Big Bore application (M-6051-R351) recommended.
  • Must use head bolt kit (M-6065-D289) to install cylinder heads on 289/302 production blocks or head bolt and head gasket kit (M-6051-A50)
  • Check rocker arm clearance to valve springs with production rocker arms
Product Benefits
  • True Bolt-on Performance
  • Each head is leak tested prior to assembly
  • Feature 10-degree locks, steel valve spring retainers and stock valve seals

CA Residents: Cancer and Reproductive Harm WARNING

Fitment & Features


Manufacturer: Ford Performance

Installation Information:

Level of Difficulty: Tech Recommended
Install Time: About 18 Hours
Tools Required: Basic Shop Tools

Vehicle Fitment:

Fits Model Year: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
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