AFR 23° SBC Cylinder Head 195cc Street Head W/72° Angle Intake Bolts, L98 Angle Plug w/Heat Riser, 65cc Chambers

AFR 23° SBC Cylinder Head 195cc Street Head W/72° Angle Intake Bolts, L98 Angle Plug w/Heat Riser, 65cc Chambers

The AFR 195cc SBC Street Cylinder Head is engineered for high-performance street applications, featuring a fully CNC-ported intake, exhaust, and combustion chambers. Designed for small block Chevy engines up to 400 cubic inches and operating up to 6500 RPM, this cylinder head offers exceptional airflow and efficiency. It is CARB compliant for 1994 and older emissions-controlled vehicles under EO #D-250-2, making it a legal upgrade for street-driven cars.

Included Components

• 100% CNC Ported Combustion Chambers
• 90% CNC Ported Exhaust Ports
• 100% CNC Ported Intake Ports
• Competition 5-angle Valve Job
• 8mm Bead Lock Intake Valve - 2.050" x 4.900" (AFR #7252)
• 8mm Bead Lock Exhaust Valve - 1.600" x 4.950" (AFR #7250)
• PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring
• 7° Chrome Moly Retainers 1.245" O.D x .885" I.D x .655" I.D (AFR #8514)
• 7° Bead Lock Valve Keepers (AFR #9007)
• ARP 3/8" Rocker Studs (AFR #6409)
• Adjustable 5/16" Guide Plates (AFR #6103)
• Viton Valve Seals .600" O.D x .495" I.D (AFR #6612)
• Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D (AFR #8042)
• Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep (AFR #9060)
• Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep (AFR #9070)
• 8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L (AFR #9051)

Performance Flow Chart

Tested at 28" of water (pressure) on a Superflow 1020 with a bore size of 4.060", using a 3/4" radius intake plate and a 1 3/4" curved exhaust pipe.

Specifications & Features

• Material: A356 Aluminum
• Intake Port Volume: 195cc
• Intake Port Dimensions: 2.110" H x 1.265" W
• Exhaust Port Volume: 64cc
• Exhaust Port Dimensions: 1.450" H x 1.550" W
• Combustion Chamber Size: 65cc or 75cc
• Valve Angle: 23°
• Deck Thickness: .750"
• Minimum Bore Diameter: 4.000"
• Valve Cover Bolt Pattern: Perimeter Bolt
• Flat Mill: .006" per cc (60cc Maximum)
• Angle Mill: .009" per cc (55cc Maximum) - Requires .120" Thick Intake Gasket
• Spark Plug Dimensions: 14mm x .750" w/Gasket Seat

Performance & Compatibility

The AFR 195cc Street Cylinder Head is optimized for power and efficiency, making it an excellent choice for street-driven small block Chevy engines. With its high-quality components and precise CNC porting, it provides enhanced airflow and durability for performance enthusiasts.