STS Track 1 T1 F 225 Series Cylinder Head
• 225cc Intake Ports
• 68cc Combustion Chambers
• 2.100'' Intake / 1.600'' Exhaust Stainless Steel Valves
• 1.550'' Dia. Springs - 240# Seat Pressure
• Titanium Retainers
• Assembled, 2/pkg.
  
  
  Cylinder Head Specifications
• Intake Port Volume: 225cc
• Combustion Chamber Volume: 68cc
• Valves: 2.100' dia. x 4.965' o.a.l. Stainless Steel Intake / 1.600' dia. x 4.965' o.a.l. Stainless Steel Exhaust ( 11/32' Stem Diameter )
• Valve Springs: 1.550' Diameter - Open Pressure: 550 lbs.; Closed Pressure: 240 lbs.; Installed Height: 1.950'; Max Lift: .700'
• Spring Retainers: 1.550' 10° Titanium
• Rocker Studs: 7/16'
• Guide Plates: 5/16'
• Valve Seals: 11/32'
• 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 Studs: 40-45 ft-lb.
• Intake Gasket: Fel-Pro 1262R (p/n 375-1262R)
• Head Gasket: Fel-Pro p/n 375-1011-1 or 375-1011-2
• Exhaust Gasket: Fel-Pro p/n 375-1487 / Brodix MG 1350
• Head Bolts: ARP p/n 070-154-4203
• Head Studs: ARP p/n 070-154-3603
• Spark Plug Specs: 14mm Thread, .750' (3/4') Reach, Gasket Seat
• Valve Angle: 20° Intake, 20° Exhaust
• Angle Milling: .010' per cc
• Flat Milling: .0060' per cc
• Valve Centerline: 53/119
• Rocker Arms: Any Ford Roller Rockers with 7/16' Rocker Studs
• 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

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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