FordRacingParts.com
302/351W "X-HEAD" ALUMINUM ASSEMBLED 58CC
M-6049-X307*
Suggested Retail Price
$699.00
Sold in Units of:
Each (1)

tech notes

NEW AND IMPROVED, NOW ASSEMBLED WITH BEEHIVE SPRINGS AND HARDWARE FAST, EASY WAY TO BOLT ON 65 HORSEPOWER! TRUE BOLT-ON PERFORMANCE

  • 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. Does not fit M-9424-Z51/-Z51P
  • 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
  • Each head is leak tested prior to assembly
  • Assembled with 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.
  • Feature 10-degree locks, steel valve spring retainers and stock valve seals
  • Designed to be used on Ford Racing Boss blocks M-6010-BOSS302, M-6010-B302BB, M-6010-BOSS35195M-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
  • Designed for bolt-down rocker arms part number M-6564-B351 for a 1.6 ratio. Use part number M-6564-A50 for a 1.7 ratio. Check rocker arm clearance to valve springs with production rocker arms
  • Uses Felpro® exhaust gasket part number 1415
  • NOTE: Will not fit 1986 5.0L with flat-top pistons unless pistons are notched for valve relief

specs

Package Dimensions:
7.5 x 9.5 x 21.75
Package Weight:
27 lbs
Part Type:
Engine: Cylinder Heads
Instruction Sheet:
Not Available
Warranty Availability:
Not Available
Country of Origin:
United States
UPC Code:
756122099896
Catalog Page Number:
107