FORD PERFORMANCE XBE TOP END POWER PACK

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FORD PERFORMANCE XBE TOP END POWER PACK
The Engineers at Ford Performance have made it simple to bolt on some power for your small block Ford with the XBE Top End Power Pack. X-Head – B-Cam – Edelbrock RPM Performer Intake. This is a combination of proven parts that delivers a 60+ horsepower increase over a stock top end with great throttle response and power to 6400 RPM. The legendary “B-Cam” steel billet hydraulic roller cam was designed and developed for use with the X306 Cylinder Heads for street and strip applications. The kit includes matched hydraulic roller lifters, tie bars and retainer plate; along with a roller timing chain and gear set. An Edelbrock RPM Performer Air Gap intake manifold and gaskets finishes off the Pack.

Here are more details and specifications of all that’s included:

  • Fits 1985 and later 302 roller cam blocks
  • Will also fit 1963 – 1984 non-roller cam 289-302 blocks when used with aftermarket tie-bar hydraulic roller lifters
  • Higher stall torque converter recommended for automatic transmission

M-6049-X306 Aluminum Cylinder Head

NEW AND IMPROVED, NOW ASSEMBLED WITH BEEHIVE SPRINGS AND HARDWARE FAST, EASY WAY TO BOLT ON 60+ HORSEPOWER! TRUE BOLT-ON PERFORMANCE

  • For use on 289/302 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 Performance 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 64cc
  • 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 Performance intakes, headers, and valve train components.
  • Each head is leak tested prior to assembly
  • Assembled with M-6507-J302 intake valves, M-6505-G302 exhaust valves, PAC® 1219X Ovate® Beehive valve springs. Closed spring pressure is 145#@1.800" 358# @1.175". Compatible with all Ford Performance roller camshafts and aftermarket hydraulic roller camshafts up to .600 lift.
  • Feature 10-degree locks, steel valve spring retainers and stock valve seals
  • 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-D50
  • Designed for bolt-down rocker arms. 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

M-6250-B303 Steel Billet Hydraulic Roller Camshaft

The legendary B303 cam developed by Ford Performance for the 5.0L Fox-body Mustang. This cam provides a noticeable power improvement and lumpy idle while maintaining good driveability with a manual transmission. Works well with carburetors or mass air fuel injection.

  • Fits 1985 and later 302 roller cam blocks
  • Will also fit 1963 – 1984 non-roller cam 289-302 blocks when used with aftermarket tie-bar hydraulic roller lifters
  • Intake and Exhaust Lift 0.480” with a 1.6:1 rocker arm
  • Intake and Exhaust Duration - 224°@0.050” lift
  • Higher stall torque converter recommended for automatic transmission

PN 7521 Edelbrock Performer RPM Air Gap Intake Manifold

Designed for street 289-302 c.i.d. Ford V8's, the RPM Air-Gapintake manifold incorporates the same race-winning technology that's been used on our Victor Series competition intakes for decades. The Air-Gap® design features an open air space that separates the runners from the hot engine oil resulting in a cooler, denser charge for more power. Includes nitrous bosses. No provision for exhaust heated chokes and no exhaust crossover.

Kit Includes

  • AGSP-32C Spark Plugs (8)
  • EDL-7521 Edelbrock Performer RPM Air Gap Intake Manifold
  • M-6049-X306 Aluminum Cylinder Head
  • M-6250-B303 B303 Hydraulic Roller Camshaft
  • M-6253-A50 Roller Cam Conversion Kit
  • M-6268-A302 Timing Chain and Sprocket Set
  • M-6500-R302 Hydraulic Roller Lifters (16)
  • M-9439-A50 Intake Manifold Gasket Set

Recommended parts to finish your installation

Part Type
Engine: Cylinder Heads
Warranty Availability
Not Available
Package Dimensions
16" x 25" x 32.5"
Package Weight
112 lb(s)
UPC Code
756122004005
Country of Origin
United States