AFR’s 180cc “Street” heads are a cost effective performance choice over re-worked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for street, towing, or street/strip engines with displacements up to 383 cubic inches, operating up to 6000 RPM. Legal for 1994 and older emissions controlled vehicles under CARB EO #D-250-2

  • 100% CNC Ported Combustion Chambers
  • 100% CNC Ported Exhaust Ports
  • 100% CNC Ported Intake Ports
  • Competition 5-Angle Valve Job
  • 8mm Bead Lock Intake Valve, 2.020" x 4.900" Overall Valve Length
  • 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" Overall Valve Length
  • 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500
  • PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring,
  • 7° Manley Chrome Moly Retainers 1.245" O.D x .885" I.D x .655" I.D
  • 7° Bead Lock Valve Keepers
  • ARP 3/8" Rocker Studs
  • Adjustable 5/16" Guide Plates
  • Viton Valve Seals .600" O.D x .495" I.D
  • Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D
  • Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep
  • Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
  • 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L

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More information can be found by clicking this link to AFR's product page.

AFR 180cc SBC

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AFR 195cc SBC Street Cylinder Head

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