AFR 1630 - LS Chevy 230cc LSX Mongoose Strip Aluminum Cylinder Heads-Pair

$2,487.00

72cc Combustion Chambers

LS1/LS2/LS6 Chevy 230cc LSX Mongoose Basic Package Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-Angle Valve Job
Intake Valve, 2.080'' x 4.898'' o.a.l.
Exhaust Valve, 1.600'' x 4.907'' o.a.l.
1.270'' OD Hydraulic Roller Dual Valve Spring, 155 lbs. on seat, .650'' maximum lift, max RPM 7000-7200
7° 1.250'' Titanium Retainers
7° Valve Locks
Viton Valve Seals
Hardened Spring Cups
Intake Valve Seats
Exhaust Valve Seats
Bronze Valve Guides
LS1/LS2/LS6 Chevy 230cc LSX Mongoose Strip Head Specifications
Head Torque w/Moly Lube11mm ARP 70 Ft. Lbs. / 8mm 23 Ft. Lbs.
Intake Port Volume230cc
Exhaust Port Volume85cc
Exhaust Port GasketFel Pro 375-1440
Head GasketFel Pro 375-1041 
Cometic 033-6848
Head Bolts & StudsStandard ARP
Head Bolt WashersStandard ARP
Shaft Mount Rocker ArmsYella Terra Ultralite p/n 033-6038
Suggested ManifoldLS6 or FAST p/n 244-54039B
Spark Plug Starting RangeAC 41-974 Platinum
Combustion Chambers72cc
Spring Pocket can be cut to 1.525, no deeper.
Valve SpacingStock
Rocker ArmsStock
Valve AngleStock
Flat Mill.006'' per cc

For the maximum high performing street/strip LS1/LS2/LS6 aluminum cylinder heads, AFR's all new 230cc emissions legal cylinder head (CARB EO #D250-4) is hands down, the best choice. Specifically designed for 1997-up Gen-3 Chevy Corvettes, Camaros, and trucks. AFR's LSX cylinder head offers unmatched flow performance and features 2.080'' intake and 1.600'' exhaust valves with AFR's iron ductile interlocking valve seats. This 230cc cylinder head is ideal for normally aspirated 396-427ci and for a wild 346ci the 230 is a good choice, however some low RPM loss of torque might occur. The 230cc LSX is available with 62cc, 65cc, and 72cc combustion chambers. AFR's LSX is a direct bolt on, no special parts required. Structural features like Air Flow Research's trademark 3/4'' thick head deck, a must for blown and nitrous applications, reinforced rocker stud bosses and thick wall runners provide unparalled durability. An exclusive new modern combination chamber design with double quench pad area helps the LSX generate huge low and mid lift airflow numbers. Made in USA.

Installation Notes: 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.

230cc LSX Mongoose Strip Cylinder Head Features:
  • 100% CNC Ported Combustion Chambers
  • 100% CNC Ported Exhaust Ports
  • 100% CNC Ported Intake Ports
  • Competition 5-angle Valve Job
  • 230cc Intake Ports
  • 85cc Exhaust Port
  • Bead Lock Intake Valve, 2.080'' x 4.898'' Overall Valve Length
  • Bead Lock Exhaust Valve, 1.600'' x 4.907'' Overall Valve Length
  • PAC Racing Valve Spring: 1.270'' OD Hydraulic Roller Dual Valve Spring, 155 lbs on seat, .650'' maximum lift, Max RPM 7000-7200
  • 7° 1.250'' Titanium Retainers
  • 7° Bead Lock Valve Keepers
  • Viton Valve Seals
  • Hardened Spring Cup
  • Intake Valve Seats
  • Exhaust Valve Seats
  • Bronze Valve Guides 

  • Picture for reference only.