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AFR LS1 LS2 LS6 15° Mongoose 210cc Cylinder Heads

$2,899.99 $2,462.99

Brand AFR
SKU: 1510

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.


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:
A356 Aluminum
Intake Port Volume
Intake Port Dimension
3.275"H x 1.120"W x5/16 top 3/8 bottom
Intake Port Location
Exhaust Port Volume
Exhaust Port Dimension
1.415" H x 1.710" W
Exhaust Port Location
Combustion Chamber Size
Valve Cover Bolt Pattern
Center Bolt
Valve Angle
Valve Spring Pocket Diameter
1.510" O.D
Max Valve Spring Pocket Machining
1.525" O.D
Deck Thickness
Minimum Bore Diameter
Flat Mill
.006" per cc 58cc Maximum
Minimum Cross Sectional Area
2.185 sq. in.
Spark Plug Dimensions
14mm x .750" w/Gasket Seat