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
AFR’s emission legal (CARB #D-250-4) 210cc LSX heads are the cost effective performance choice over re-worked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings, Titanium retainers and high quality components throughout. Recommended for street, towing, or street/strip engines with displacements up to 383 cubic inches, operating up to 6300 RPM. Requires minimum 3.900” bore size for intake valve clearance.
| 210cc Aluminum LS1 Cylinder Heads | ||
|---|---|---|
| Part # | Description | Combustion Chamber |
| 1510* | 3.900+ Bore | 66cc |
Click part # to add product to your cart
* Emission Legal
| 210cc Street Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 147 | 214 | 249 | 284 | 296 | 301 |
| Exh | 111 | 150 | 209 | 225 | 230 | 233 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 3.900", 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, 2.020” x 4.900" Overall Valve Length |
AFR #7207
|
| 8mm Bead Lock Exhaust Valve, 1.600” x 4.900" Overall Valve Length |
AFR #7228
|
| PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500 |
AFR #8017
|
| 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 #6612
|
| 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
|
*LSX bead locks and aftermarket bead locks are not interchangeable. GM made their bead lock radius and depth different. AFR locks are the same as GM LSX.
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
210cc
|
| Intake Port Dimension |
3.275"H x 1.120"W x5/16 top 3/8 bottom
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
84cc
|
| Exhaust Port Dimension |
1.415" H x 1.710" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
66cc
|
| 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 |
.006" per cc 58cc Maximum
|
| Minimum Cross Sectional Area |
2.185 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
| CARB E.O. |
#D-250-4
|