AFR’s, MONGOOSE, LS1 Cathedral Port cylinder heads are 100% 5-AXIS CNC ported and made with A356 aluminum. All heads come with high quality components, such as titanium retainers and Pac Racing Springs. Available in runner volumes from 210cc, 215cc, 230cc and 245cc. Component upgrades and different machining options are available to customize your AFR heads for your specific build. Minimum bore sizing is 3.900” to accommodate intake valve clearance.
SOLD AS A PAIR
| 230cc Aluminum LS1 Cylinder Heads | ||
|---|---|---|
| Part # | Description | Combustion Chamber |
| 1610* | Large Bore (4.000+) | 62cc |
| 1630* | Large Bore (4.000+) | 72cc |
| 1660 | Small Bore (3.900+) | 65cc |
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* Emission Legal
| 230cc Small Bore Race Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 157 | 224 | 272 | 311 | 320 | 324 |
| Exh | 129 | 183 | 225 | 244 | 248 | 252 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 3.900", 3/4" radius plate exhaust, 1 3/4" curved pipe
| 230cc Large Bore Race Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 158 | 230 | 282 | 320 | 325 | 328 |
| Exh | 129 | 183 | 225 | 244 | 248 | 252 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.155", 3/4" radius plate exhaust, 1 3/4" curved pipe
| 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 #7208
|
| 8mm Bead Lock Exhaust Valve, 1.600" x 4.900" Overall Valve Length |
AFR #
|
| PAC Racing Spring 1.270" OD Hydraulic Roller Dual Valve Spring, 155 lbs. on seat, Max RPM 7000-7200 |
AFR #8019
|
| 7° Titanium Retainers 1.245" O.D x .885" I.D x .655" I.D |
AFR #8512
|
| 7° Bead Lock Valve Keepers |
AFR #9007*
|
| Viton Valve Seals .600" O.D x .495" I.D |
AFR #
|
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D |
AFR #8042
|
| Ductile Iron Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep |
AFR #9059
|
| Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep |
AFR #9069
|
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L |
AFR #9051
|
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
230cc
|
| Intake Port Dimension |
3.250"H x 1.115"W x5/16 top 3/8 bottom
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
86cc
|
| Exhaust Port Dimension |
1.385" H x 1.695" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
62cc, 65cc, or 72cc
|
| Valve Cover Bolt Pattern |
Center Bolt
|
| Valve Angle |
15°
|
| Valve Spring Pocket Diameter |
1.510" O.D
|
| Max Valve Spring Pocket Machining |
1.525" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
3.900"
|
| Flat Mill - 62cc chamber |
.006" per cc 58cc Maximum
|
| Flat Mill - 72cc chamber |
.006" per cc 67cc Maximum
|
| Minimum Cross Sectional Area |
2.425 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
| CARB E.O. |
#D-250-4
|