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Air Flow Research 205 Mongoose Cylinder Heads for LS1/LS6/GENIII

For the ultimate street LS1/LS6 aluminum cylinder head AFR’s all new 205cc emission legal head are your only choice. Specifically designed for 1995 to present Gen-3 Chevy Corvettes, Camaros, and trucks. AFR’s LS1 head offers unmatched flow performance (300 CFM at .600lift) and features 2.020 intake and 1.600 exhaust valves with AFR’s iron ductile interlocking valve seats. With only 205cc port volume (same as stock LS1 head) this is an incredibly 70 CFM increase over stock casting creating unbelievable port velocity and performance. The 205cc is ideal for normally aspirated 346C.I. to 396C.I. It is available with 66cc and 76cc combustion chambers. An affordable “as cast” version is also available. AFR’s LS1 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 LS1 generate huge low and mid lift airflow numbers.


Note: Hydraulic roller cams in "LS" Gen III engines typcially experience valve float at 6600-6800 RPM's. If you plan on running over .600 gross valve lift and/or 6600 RPM, Xtreme Motorsports suggests you upgrade your springs to Comp Cams 26921 Spring Kit.


• 100% CNC Ported Combustion Chambers
• 100% CNC Ported Exhaust Ports
• 100% CNC Ported Intake Ports
• 3-angle Raduised Valve Job
• Stainless Steel Intake Valve, 2.020"standard length
• Stainless Steel Exhaust Valve, 1.600" standard length
• 1.290" O.D. Dual Hydraulic Valve Spring, 135 lbs. on seat, .600" maximum lift
• 7 Degree 1.250 Titanium Retainers
• 7 Degree Valve Locks
• Valve Seals
• Spring Cups
• Intake Valve Seats
• Exhaust Valve Seats
• Bronze Valve Guides

AFR 205 w/comp port Starting at $2450.00

Core Charges: NONE!!!

 

 

 

  LS1/LS6 Xtreme/LPE Stage I Cylinder Heads

• Competition valve springs
• Production retainers
• Production locks
• CNC porting / valve job
• Stainless Steel intake valve - 2.000"
• Stainless Steel exhaust valve - 1.550"

LS1 Heads w/exchange Starting at $1,599.00
LS6 Heads w/exchange Starting at $1,599.00

Core Charges:

LS1 Production Cylinder Heads: Starting at $750.00
LS6 Production Cylinder Heads: Starting at $1,310.00

 

 

 

  LS1/LS6 Xtreme/LPE Stage II Cylinder Heads

• Comp Cams valve springs
• Production retainers
• Production locks
• CNC porting / valve job
• Stainless steel. intake valve - 2.020"
• Stainless steel exhaust valve - 1.575"

LS1 Heads w/exchange Starting at $1,899.00
LS6 Heads w/exchange Starting at $1,899.00

Core Charges:

LS1 Production Cylinder Heads: Starting at $750.00
LS6 Production Cylinder Heads: Starting at $1,310.00

 

 

 

  LS1/LS6 Xtreme/LPE Stage III Cylinder Heads

All of Stage II components plus:

• 2.080" Intake/1.600" Exhaust S.S. Valves
• Replaced, oversized valve seats
• Full Race Port

LS1 Heads w/exchange Starting at $2,499.00
LS6 Heads w/exchange Starting at $2,900.00

Core Charges:

LS1 Production Cylinder Heads: Starting at $750.00
LS6 Production Cylinder Heads: Starting at $1,310.00

 

 

 

 

 

 

 

 

 

 

 
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