Description
195cc SBC Race Cylinder Head
AFR’s 195cc “Competition” heads are the preferred choice for a more aggressive street or street/strip build. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for displacements 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″ maximum 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
|
| 8 mm Bronze Valve Guides .502″ O.D x 2.100″ O.A.L |
AFR #9051
|
| 195cc Competition Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 151 | 211 | 260 | 293 | 304 | 308 |
| Exh | 125 | 172 | 207 | 224 | 229 | 233 |
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
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
195cc
|
| Intake Port Dimension |
2.185″ H x 1.265″ W 5/16 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
64cc
|
| Exhaust Port Dimension |
1.460″ H x 1.565″ W
|
| Exhaust Port Location |
.100″ Raised
|
| Combustion Chamber Size |
65cc or 75cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.460″ O.D
|
| Max Valve Spring Pocket Machining |
1.750″ O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750″
|
| Minimum Bore Diameter |
4.000″
|
| Flat Mill |
.006″ per cc 60cc Maximum
|
| Angle Mill |
.009″ per cc 55cc Maximum
|
| Note: Angle mills might require .120″ Thick intake gasket. | |
| Minimum Cross Sectional Area |
1.920 sq. in.
|
| Spark Plug Dimensions |
14mm x .750″ w/Gasket Seat
|
| CARB Status: This product is not legal for sale or use on emission-controlled vehicles and intended for dedicated race vehicles. | |
| Recommended Components: | |
| Intake Gasket |
AFR #6901
|
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket |
AFR #6905
|
| Head Gasket, 350cid Fel-Pro #1003 |
AFR #6800
|
| Head Gasket, 400cid Fel-Pro #1014 |
AFR #6802
|
| SB Chevy Head Bolt Kit, ARP #134-3701 |
AFR #6310
|
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 |
AFR #6305
|
| Head Bolt Washers, Manley |
AFR #6320
|
| AFR Stud Girdle |
AFR #6200
|
| Suggested Manifold |
AFR #4810
|
| Suggested Manifold |
AFR #4811
|
| Suggested Manifold |
AFR #4812
|
| Spark Plug Starting Range |
Autolite 3924
|




