BP ST 5.0 R Series Cylinder Head
• CNC Ported
• 185cc Intake Ports
• 66cc Combustion Chambers
• 2.020'' Intake / 1.600'' Exhaust Valve Sizes
• Bare, 2/pkg.
  
  

  This head is sold as an unassembled bare casting. It is finished machined and includes valve guides and valve seats installed. This head does NOT include rocker studs, valves, springs, retainers or locks.

  Cylinder Head Specifications
• Intake Port Volume: 185cc
• Combustion Chamber Volume: 66cc
• Valve Sizes: 2.020' Intake / 1.600' Exhaust ( 11/32' Stem Diameter )
• Spark Plug Configuration: Angled
  Facts and Related Components
• Torque Heads: 100 ft-lb. with 1/2' Studs; 70 ft-lb. with 7/16' Studs
• Torque Rocker Stands: 30 ft-lb.
• Torque Rocker Studs: 40-45 ft-lb.
• Intake Gasket: Fel-Pro 1250 (p/n 375-1250)
• Head Gasket: Fel-Pro p/n 375-1011-1 or 375-1011-2
• Exhaust Gasket: Fel-Pro p/n 375-1487
• Head Bolts: ARP p/n 070-154-3605 (289-302ci); 070-154-3603 (351ci)
• Head Studs: ARP p/n 070-154-4005 (289-302ci); 070-154-4203 (351ci)
• Spark Plug Specs: 14mm Thread, .750' (3/4') Reach, Gasket Seat
• Valve Angle: 20° Intake, 20° Exhaust
• Angle Milling: N/A
• Flat Milling: .0060' per cc
• Valve Centerline: 53/119
• Rocker Arms: Ford Stock 5.0 Standard Non-Adjustable Rockers (Ford Motorsports p/n M6564-B351) for St 5.0 Series; Any Ford Roller Rockers with 7/16' Rocker Studs for ST 5.0 R Series
• Lifters: Standard
• Spring Pockets: May not be cut any larger or deeper than 1.550'
• Accessory Bolt Holes are Drilled
• Recommended Intake Manifold: Small Block Ford
• Air Tube: Stock air tube can be used with minor modifications

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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