Air Flow Research Emissions Legal (versions from 1969-94 with heat riser, CARB EO #D-250-2), 195cc intake port small-block Chevy cylinder heads. Call for prices and more information on these heads.
Updated 04-09-2006.
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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.

THE ULTIMATE BOLT-ON EMISSION LEGAL STREET WEAPONG
     The AFR Emissions Legal (versions from 1969-94 with heat riser, CARB EO #D-250-2), 195cc intake port small-block Chevy cylinder heads are available in your choice of straight or L98 angle plug versions. These heads feature a 74cc or 68cc combustion chamber with a 64cc exhaust port and a 3/4” thick head deck (ideal for nitrous or blower applications). The 68cc chambers are designed for flat top or dished pistons; domed pistons will require additional machining. Standard valves are 2.020 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of 2000 rpm to 6500 rpm, 23° valve angle, and standard valve spacing make this the perfect street head for 350 cid to 400 cid engines from 1955-86. Available for 1987 to present engines with center bolt valve covers and 2 center intake bolts at 72° angle. No special parts are required.
     Note: Hydraulic roller cams typically experience valve float at 5800-6000 rpm because of their fast ramp rates. AFR suggest you upgrade your springs to AFR part #8032, 1.530 O.D. with higher spring pressures and use our Patented “Hydra Rev Kit” to reduce chances of valve float associated with rpm 6000 or higher.
195cc AFR Head
Street Head Competition Package

• 100% CNC Ported Combustion Chambers
• 100% CNC Ported Exhaust Ports
• 70% to 100% CNC Ported Intake Ports
• 3-angle Valve Job
• Intake Valve, 2.020" standard length, AFR #7204
• Exhaust Valve, 1.600" standard length, AFR #7219
• 1.450" OD Hydraulic Dual Valve Spring, 120 lbs. on seat, .550" maximum lift, AFR #8020
• 10º 4140 Chrome Moly Retainers, AFR #8510
• 10º Valve Locks, AFR #9005
• 3/8" Rocker Studs, AFR #6410
• Guide Plates, AFR #6105
• Valve Seals, AFR #6611
• Hardened Shims, AFR #8043
• Intake Valve Seats, AFR #9060
• Exhaust Valve Seats, AFR #9070
• Bronze Valve Guides, AFR #9050
Note: All Accessory Holes are Predrilled & Tapped!

• Head Torque 65-70 Ft. Lbs.
• Rocker Stud Torque 55-60 Ft. Lbs.
• Intake Port Gasket*, 1.280”x2.090” w/ 3/8" radius, AFR #6810
• Exhaust Port Gasket Fel Pro #1404, AFR #6834
• Head Gasket 350cid Fel Pro #1003, AFR #6800
• 400cid Fel Pro #1014, AFR #6802
• Head Bolts & Studs Standard ARP, AFR #6310 & #6305
• Head Bolt Washers Manley, AFR #6320
• Stud Girdle AFR #6201
• Suggested Manifold Edelbrock RPM Performer, AFR #5030
• Spark Plug Starting Range AC FR3LS
• Combustion Chambers 74cc or 68cc
• Spring Pocket can be cut to 1.625, no deeper.
• Valve Spacing Standard
• Rocker Arms Standard
• Valve Angle 23º
• Angle Mill .008” per cc
• Flat Mill .006” per cc
• Pushrods 5/16” Hardened AFR #6600 & #6601
Note*: Do not port match your intake manifold to this Fel-Pro gasket, as they do not exactly fit AFR heads.

Part Number Serial Number Runner Volume Combustion Chamber Plug Type Qty. Head
Description
1038 633 195 74cc L98 1 L98 plug pattern, with parts, CNC street porting option, 74cc angle mill. GILBERT CHEVROLET’s ZZ4 power upgrade choice.
1038 634 195 74cc L98 1 L98 plug pattern, with parts, CNC street porting option, 74cc angle mill. GILBERT CHEVROLET’s ZZ4 power upgrade choice.
1040 1103 195 68cc L98 1 195cc L98 plug pattern, 68cc, 8032 - Upgrade spring 8020 to 8015+V, 8510 - Steel 10° retainer 1.450 OD, 9060 - Standard intake seats 2.200 OD, 9070 - Standard exhaust seats 2.00 OD, 6410 - 3/8” Rocker stud standard length.
1034 1108 195 68cc Straight 1 195cc Straight Plug, 68cc, 8020 - Std. Hyd. Spr. 1.450 OD, 7204 - Std. Int. valve SST, 7219 - Std. Exh. valve SST, 8510 - Std. 10 Deg. Ret. 1.450 OD, 9060 - Std. Int. Seats 2.200 OD, 9070 - Std. Exh. Seats 2.000 OD, 6410 - 3/8 Rocker Stud Std. Length.
1038 1118 195 74cc L98 1 195cc L98 plug pattern, 74cc, 8020 - Std. Hyd. Spr. 1.450 OD, 7204 - Std. Int. valve SST, 7219 - Std. Exh. valve SST, 8510 - Std. 10 Deg. Ret. 1.450 OD, 9060 - Std. Int. Seats 2.200 OD, 9070 - Std. Exh. Seats 2.000 OD, 6410 - 3/8 Rocker Stud Std. Length, Angle Mill Hds/Correct