AFR 1510 - LS Chevy 210cc LSX Mongoose Street Aluminum Cylinder Heads-Pair

$2,298.00

LS1/LS2/LS6 Chevy 210cc 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, 2.020'' x 4.907'' o.a.l.
Exhaust Valve, 1.600'' x 4.907'' o.a.l.
1.290'' OD Hydraulic Roller Dual Valve Spring, 135 lbs. on seat, .600'' maximum lift, max RPM 6300-6500
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 210cc Mongoose Street Head Specifications
Head Torque w/Moly Lube11mm ARP 70 Ft. Lbs. / 8mm 23 Ft. Lbs.
Intake Port Volume210cc
Exhaust Port Volume84cc
Exhaust Port GasketFel Pro 375-1440
Head GasketFel Pro 375-1041 
Cometic 033-6846
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 Chambers66cc
Spring Pocket can be cut to 1.525, no deeper.
Valve SpacingStock
Rocker ArmsStock
Valve AngleStock
Flat Mill.006'' per cc

For the ultimate high performance street LS1/LS2/LS6 aluminum cylinder head AFR's all new 210cc emissions legal (CARB EO #D250-4) heads are your only choice. Specifically designed for 1997 to present Gen-3 Chevy Corvettes, Camaros, and trucks using a 3.900'' cylinder bore. AFR's LSX cylinder head offers unmatched flow performance (302 CFM at .600'' lift) and features 2.020'' intake and 1.600'' exhaust valves with AFR's iron ductile interlocking valve seats. With only 210cc port volume (same as stock LS1 head) this is an incredible 70CFM increase over stock casting, creating unbelievable port velocity and performance. This 210cc cylinder head is ideal for normally aspirated 346-396ci engines. It features a 66cc combustion chambers and the 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 unparalleled durability. An exclusive new modern combustion chamber design with double quench pad area helps the LSX generate huge low- and mid-lift airflow numbers. If you need a snake charmer for that pesky neighborhood ''Cobra'' look no further. 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.
Hydraulic roller cams in ''LS'' Gen III engines typcially experience valve float at 6600-6800 RPM's. If you are using aftermarket rocker arms, plan on running over .600'' gross valve lift, or if you are revving beyond 6600 RPM valve float will become prominent. AFR suggests you upgrade your springs to AFR p/n 033-8019. This upgrade spring has higher seat and open pressures (155/410+) to better reduce the risk of valve float in more aggressive applications.

210cc LSX Mongoose Street Cylinder Head Features:
  • 100% CNC Ported Combustion Chambers
  • 100% CNC Ported Exhaust Ports
  • 100% CNC Ported Intake Ports
  • Competition 5-angle Valve Job
  • 210cc Intake Ports
  • 84cc Exhaust Port
  • 66cc Combustion Chambers
  • Bead Lock Intake Valve, 2.020'' x 4.907'' Overall Valve Length
  • Bead Lock Exhaust Valve, 1.600'' x 4.907'' Overall Valve Length
  • PAC Racing Valve Spring: 1.290'' OD Hydraulic Roller Dual Valve Spring, 135 lbs on seat, .600'' maximum lift, Max RPM 6300-6500
  • 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.