AFR 23° SBC Cylinder Head 195cc Competition Package Heads w/Heat Riser, L98 Angle Plug, 65cc Chambers

The AFR 195cc SBC Race Cylinder Head is the ultimate choice for aggressive street and street/strip builds. These high-performance heads feature 100% CNC ported intake, exhaust, and combustion chambers, ensuring optimal airflow and power output. Constructed from premium A356 aluminum castings, these heads deliver exceptional durability and performance. Recommended for small block Chevy engines up to 400 cubic inches, operating up to 6500-6800 RPM.

Included Components

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, 2.080" x 4.900" Overall Valve Length (AFR #7259)
8mm Bead Lock Exhaust Valve, 1.600" x 4.950" Overall Valve Length (AFR #7250)
PAC Racing Spring 1.270" OD Hydraulic Dual Valve Spring, 155 lbs. on seat, .650" max lift, Max RPM 7000-7200 (AFR #8019)
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 7/16" Rocker Studs (AFR #6405)
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)

Flow Chart Data

Test conducted at 28" of water (pressure) on Superflow 1020 Bore Size: 4.060", intake 3/4" radius plate exhaust, 1 3/4" curved pipe

Lift	.200	.300	.400	.500	.550	.600
Intake	151	211	260	293	304	308
Exhaust	125	172	207	224	229	233

Specifications & Features

Material: A356 Aluminum
Intake Port Volume: 195cc
Exhaust Port Volume: 64cc
Combustion Chamber Size: 65cc or 75cc
Valve Angle: 23°
Deck Thickness: .750"
Minimum Bore Diameter: 4.000"
Spark Plug Dimensions: 14mm x .750" w/Gasket Seat
CARB Status: Not legal for sale or use on emission-controlled vehicles. Intended for dedicated race vehicles.

Performance & Compatibility

Designed for high-performance racing applications, the AFR 195cc Competition Package heads offer superior flow rates and power potential. The precision-engineered design enhances airflow, ensuring maximum efficiency for engines up to 400 cubic inches and 7200 RPM operation.