230cc LSX "Mongoose" Strip Aluminum Cylinder Heads

The Ultimate Bolt-On Emission Legal Street/Strip Weapon

For the maximum high performing street/strip LS1/LS2/LS6 aluminum cylinder heads AFR’s all new 230cc emission legal E/O #D250-4 are hands down the best choice. Specifically designed for 1997 to present 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. Our 230cc cylinder head is ideal for normally aspirated 396C.I. to 427C.I. For a wild 346 ci the 230 is a good choice, however some low RPM loss of torque might occur. It is available with 62cc, 65cc, and 72cc combustion chambers. AFR’s LSX is a direct bolt on, no special parts required (see footnotes here). 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. If you need a snake charmer for that pesky neighborhood “Cobra Mustang” look no further!

FYI:

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 Small Bore LSX Aluminum Cylinder Head Flow Chart

AFR 1660 test on 3.900 bore

230cc LS1 Cylinder Head Small Bore Flow Chart

230cc Large Bore LSX Aluminum Cylinder Head Flow Chart

AFR 1630 tested on 4.125 bore

230cc LS1 Cylinder Head Big Bore Flow Chart

Basic Package Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
AFR #7208 Bead Lock Intake Valve, 2.080" x 4.898" Overall Valve Length
AFR #7228 Bead Lock Exhaust Valve, 1.600" x 4.907" Overall Valve Length
AFR #8019 PAC Racing Spring 1.270" OD Hydraulic Roller Dual Valve Spring, 155 lbs. on seat, Max RPM 7000-7200
AFR #8512 7° 1.250 Titanium Retainers
AFR #9007 7° Bead Lock Valve Keepers
AFR #6612 Viton Valve Seals
AFR #8042 Hardened Spring Cup
AFR #9059 Intake Valve Seats
AFR #9069 Exhaust Valve Seats
AFR #9051 Bronze Valve Guides



Specifications, Features, and Optional Supporting Components
11mm ARP 70ft. lbs. w/ Moly Lube Head Torque
8mm 23ft. lbs. w/ Moly Lube Head Torque
AFR #6859 or GM#12558573 Exhaust Port Gasket Fel-Pro #1440
230cc Intake Port Volume
85cc Exhaust Port Volume
AFR #6847 Head Gasket Fel-Pro #1041
AFR #6848 Cometic Head Gasket
AFR #6330 6 pt. Head Bolts
AFR #6331 6 pt. Head Studs
AFR #6332 12 pt. Head Studs
AFR #6328 Head Bolt Washers
AFR #6329 Head Bolt Washers
Yella Terra Ultra Light Rocker Arms
FAST 90mm, 92mm, 102mm Suggested Manifold
LS6/LS2 Suggested Manifold
AC 41-974 Platinum Spark Plug Starting Range
62cc, 65cc or 72cc Combustion Chambers
Can be cut to 1.525, no deeper Spring Pocket
Stock Valve Spacing
Stock Rocker Arms
Stock Valve Angle
.006" per cc Flat Mill (milling options available)
 Model      Product Name   Price   Buy Now 
 1610   AFR LS1 230cc fully CNC ported, 62cc chambers, Big Bore, complete w/parts   AFR LS1 230cc fully CNC ported, 62cc chambers, Big Bore, complete w/parts   $2,598.00  Buy Now 
 1630   AFR LS1 230cc fully CNC ported, 72cc chambers, Big Bore, complete w/parts   AFR LS1 230cc fully CNC ported, 72cc chambers, Big Bore, complete w/parts   $2,598.00  Buy Now 
 1660   AFR LS1 230cc fully CNC ported, 65cc chambers, Small Bore, complete w/parts   AFR LS1 230cc fully CNC ported, 65cc chambers, Small Bore, complete w/parts   $2,598.00  Buy Now 
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Air Flow Research | 28611 W. Industry Drive | Valencia, CA 91355 | 661-257-8124

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