STS B1 BS Series Cylinder Head
• CNC Ported
• 243cc Intake Ports
• 80cc Combustion Chambers
• 2.200'' Intake / 1.810'' Exhaust Valve Sizes
• Bare, 1/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: 243cc
• Combustion Chamber Volume: 80cc
• Valve Sizes: 2.200' Intake / 1.810' Exhaust ( 11/32' Stem Diameter )
  Facts and Related Components
• Torque Heads: 70 ft-lb. with 7/16' Studs; 100 ft-lb. with 1/2' Studs
• Torque Rocker Studs: 30 ft-lb.
• Intake Gasket: Fel-Pro 1214 (p/n 375-1214) B1 BS series; Fel-Pro 1276 (p/n 375-1276) B1 MO series
• Head Gasket: Fel-Pro p/n 375-1009
• Exhaust Gasket: Fel-Pro 1414 (p/n 375-1414)
• Head Studs: ARP p/n 070-145-4012 (B1 BS); ARP 070-145-4007 (B1 MO)
• Spark Plug Specs: 14mm Thread, .750' (3/4') Reach, Gasket Seat
• Valve Angle: 15° Intake and Exhaust
• Angle Milling: .0065' per cc (B1 BS); .0070' per cc (B1 MO)
• Flat Milling: .0055' per cc
• Pushrod Slots: Standard
• Pushrods: Special Length>Rocker Arms: Shaft Mounted System - T&D 8220, Jesel KPS 12364 (B1 BS); T&D 8010, Jesel KPS SP1100 (B1 MO)
• Lifters: Standard
• Pistons: Standard Closed Chamber (B1 BS); Special 15° (B1 MO)
• Spring Pockets: May not be cut any larger or deeper than 1.625'
• Recommended Intake Manifold: Standard Big Block Chrysler on B1 BS & STS B1 BS Series; B1 Manifold on B1 MO Series
• Accessory Bolt Holes are Drilled (B1 BS)

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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