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GILBERT CHEVROLET - AFR 205CC LS1 MONGOOSE STREET HEAD | |
| The 205cc LS1 Mongoose Street Head. The ultimate street LS1/LS6 aluminum cylinder head AFR’s all new 205cc emission legal head are your only choice. The Small Port, High Velocity Torque Monster. | |||||||||||||
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WEB SITE NAVIGATION INFORMATION | |
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AFR NAVIGATION | |
| Index Page | 195cc SBC Street |
| 335cc BBC Rectangular CNC Ported | 305cc BBC As Cast Torquer |
| AFR Parts & Accessories | 205cc LS1 Mongoose Street |
| 180cc SBC Street | 357cc BBC Rectangular CNC Ported |
| AFR Hydra-Rev Kits | |
| Note: You must call us for prices. GILBERT CHEVROLET will not be posting prices for AFR heads on our web site. | |
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AFR 205CC LS1 MONGOOSE STREET HEAD DESCRIPTION | |
| THE SMALL PORT, HIGH VELOCITY TORQUE MONSTER | |
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The AFR 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 in “LS” Gen III engines typically experience valve float at 6600-6800 RPM’s. If you plan on running over .600 gross valve lift and/or 6600 RPM, AFR suggests you upgrade your springs to AFR part #8014. Our upgrade spring has higher seat and open pressures (145/380+) to better reduce the risk of valve float in more aggressive applications. AFR also recommends the use of Comp “R” lifters in conjunction with our 8019 spring upgrade. |
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205CC MONGOOSE LS1 RACING HEAD PART NUMBERS | |
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CNC PORTED PAIRS OF CYLINDER HEADS COMPLETE WITH PARTS AND READY TO INSTALL CNC STREET PORTING |
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| Description | Part Number |
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205cc CNC Ported w/parts 66cc 205cc CNC Ported w/o parts 66cc 205cc CNC Ported w/parts 76cc 205cc CNC Ported w/o parts 76cc 200cc As Cast w/ parts 64cc 200cc As Cast w/o parts 64cc 200cc As Cast w/ parts 74cc 200cc As Cast w/o parts 74cc 200cc As Cast w/ parts 66cc CNC Chambers 200cc As Cast w/o parts 66cc CNC Chambers 200cc As Cast w/ parts 76cc CNC Chambers 200cc As Cast w/o parts 76cc CNC Chambers |
1510 1520 1530 1540 1550 1560 1570 1580 1550-1 1560-1 1570-1 1580-1 |
| Note: All Accessory Holes are Predrilled & Tapped! | |
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BASIC PACKAGE COMPONENTS | |
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• 100% CNC Ported Combustion Chambers • 100% CNC Ported Exhaust Ports • 100% CNC Ported Intake Ports • 3-angle Raduised Valve Job • Intake Valve, 2.020” standard length #7207 • Exhaust Valve, 1.600” standard length #7228 • 1.290” O.D. Dual Hydraulic Valve Spring, 135 lbs. on seat, .600” maximum lift #8017 (upgrades available) |
• 7° 1.250 Titanium Retainers #8512 • 7° Valve Locks #9007 • Valve Seals #6612 • Spring Cups #8042 • Intake Valve Seats #9058 • Exhaust Valve Seats #9069 • Bronze Valve Guides #9051 |
| Note: All Accessory Holes are Predrilled & Tapped! | |
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SPECIFICATIONS, FEATURES, AND SUPPORTING COMPONENTS | |
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• Head Torque 11MM ARP 70 Ft lbs w/ Moly 8mm 23 FT lbs w/ Moly • Exhaust Port Gasket GM#12558573/ Fel-Pro #1440 AFR#6857 • Intake Port Volume (as cast) 200cc • Intake Valve Size 2.020 • Exhaust Port Volume (as cast) 78cc • Head Gasket GM#12498543 or 12498544, Fel-Pro#1041, AFR#6847 Cometic AFR #6846 • Exhaust Valve Size 1.600 • Head Bolts & Studs Standard ARP, AFR #6330, #6331 & #6332 • Head Bolt Washers Standard ARP, AFR #6328 & #6329 • Jesel or TD Shaft Mount |
• Suggested Manifold LS6, FAST, or TPIS • Accessory Holes Are Pre Drilled • Spark Plug Starting Range AC 41-974 Platinum • Combustion Chambers 66cc or 76cc • Spring Pocket 1.450 O.D. can be machined to 1.550 O.D. • Valve Spacing Stock • Rocker Arms Stock • Valve Angle Stock • Angle Mill (milling available) .008” per cc • Flat Mill (milling available) .006” per cc |
| Note*: Do not port match your intake manifold to this Fel-Pro gasket, as they do not exactly fit AFR heads. | |
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HEAD COMBINATIONS WE HAVE IN STOCK | |
| Part Number | Serial Number | Runner Volume | Combustion Chamber | Plug Type | Qty. | Head Description |
| 1510 | 1111 | 205 | 66cc | LS1 | 1 | LS1 205cc CNC Port W/ pts - 66cc, 8017 - Std. LS1 Hyd. Roller Spr., 7207 - Std. LS1 Int. valve - SST, 7228 - Std. LS1 Exh. Valve - SST, 8512 - Std. LS1 7 Deg. Ret. - TI, 9058 - Std. Int. Seats 2.020 OD, 9069 - Std. Exh. Seats - 1.650 OD. |
| 1510 | 1112 | 205 | 66cc | LS1 | 1 | LS1 205cc CNC Port W/ pts - 66cc, 8017 - Std. LS1 Hyd. Roller Spr., 7207 - Std. LS1 Int. valve - SST, 7228 - Std. LS1 Exh. Valve - SST, 8512 - Std. LS1 7 Deg. Ret. - TI, 9058 - Std. Int. Seats 2.020 OD, 9069 - Std. Exh. Seats - 1.650 OD. |
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