205cc LS1 Mongoose Street Head

PN# 1510 $2200

 

The Small Port, High Velocity Torque Monster

 

LS1 Dyno Test

Baseline Engine: Stock LS-1 Longblock, LS-6 Intake Manifold, 1 3/4"
Headers-Long Tube Style, 3" Flowmaster Mufflers. *
VS
All Same As Above WithThe Exception Of: AFR LS-1 "205" CNC Heads, Fast
Intake Manifold, Cam-224/228 @.050 .581 Lift, 78mm Ported Throttle Body. *


AFR LS-1 "205" CNC Heads 530HP@6500 and 475lbft@4900
VS
Stock Heads 428HP@5700 and 432lbft@4700

*Compression Remained Stock for Both Tests.


 
 


 

 

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. If you need a snake charmer for that pesky neighborhood “Cobra Mustang” look no further.

Note:

Hydraulic roller cams typically experience valve float at 6000-6200 RPM because of their fast ramp rates. AFR suggest you upgrade your springs to AFR part #8019, 1.250 O.D. double with dampener valve spring with higher pressures(145lbs on seat, 390+lbs at .600 lift) to reduce the chances of valve float at higher RPM’s with the #8019 spring AFR recommends Comp Cams R style lifter.

Description

 Part Number

205cc CNC Ported w/parts 66cc 1510
205cc CNC Ported w/o parts 66cc 1520
205cc CNC Ported w/parts 76cc 1530
205cc CNC Ported w/o parts 76cc 1540
200cc As Cast w/o parts 64cc 1541
200cc As Cast w/o parts 74cc 1542


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 NOW AVILABLE FOR MAXIMUM POWER

225cc LS1 Mongoose Strip Head

PN# 1610 $2400

 

The Ultimate Bolt-On Emission Legal Street/Strip Weapon

For the maximum street/strip LS1/LS6 aluminum cylinder head AFR’s all new 225cc emission legal head E/O #D250-4 are hands down the best choice. Specifically designed for 1995 to present Gen-3 Chevy Corvettes, Camaros, and trucks. AFR’s LS1 head offers unmatched flow performance and features 2.080 intake and 1.600 exhaust valves with AFR’s iron ductile interlocking valve seats. The 225cc is ideal for normally aspirated 396C.I. to 427C.I. For a wild 346 ci the 225 is a good choice, however some low RPM loss of torque might occur. It is available with 62cc and 72cc 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 unparalled durability. An exclusive new modern combination chamber design with double quench pad area helps the LS1 generate huge low and mid lift airflow numbers. If you need a snake charmer for that pesky neighborhood “Cobra Mustang” look no further!

Note:

Hydraulic roller cams in "LS" Gen III engines typically experience valve float at 6600-6800 RPM's. If your plan on running over .600 gross valve lift and/or 6600 RPM, AFR suggest you upgrade your springs to AFR part #8019. Our upgrade spring has higher seat and open pressures (145/390+) to better reduce the risk of valve float in more aggressive applications. AFR also recomends the use of Comp "R" lifters in conjunction with our 8019 spring upgrade.

Recommend application. Over 400cid,Over 7000rpm

 

 

Description

 Part Number

225cc CNC Ported w/parts 62cc 1610
225cc CNC Ported w/o parts 62cc 1620
225cc CNC Ported w/parts 72cc 1630
225cc CNC Ported w/o parts 72cc 1640

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http://www.hotrod.com/techarticles/engine/113_0309_454/

http://www.hotrod.com/featuredvehicles/47331/