Afr 195cc Lt1 / Lt4 Eliminator Sbc Aluminum Cylinder Heads

AFR's LT1/LT4 heads are designed for the Gen II reverse cooled SBC engine from 1992-1996. They feature all the same benefits and quality components as AFR's Gen I SBC Heads in addition to dual pattern valve cover mounting holes and Chrome Moly Retainers as standard equipment. Not compatible with self-aligning rocker arms. Chamber size 65cc. Component upgrade and machining options are available to customize AFR Heads to your specific build. Can be used with both LT1 or LT4 intakes.
The Ultimate Bolt-on Emissions Legal Street Weapon
The AFR Emissions Legal (ARB only, 49 state legal, not California), 195cc intake port LT1 / LT4 small block Chevy aluminum cylinder heads are available only in an angle plug version. These heads feature a 55cc to 65cc combustion chamber with a 64cc exhaust port and a 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.050 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of 2500 rpm to 6500 rpm (higher rpm ranges possible depending on combination of parts), 23° valve angle, and standard valve spacing make this the perfect street head for 350 cid to 383 cid engines. Designed specifically for 1996 Corvettes or LT4 manifold users. No special parts are required, except for the LT4 intake manifold. Dual valve cover bolt pattern is standard.
The exhaust ports are raised .100" over a standard GM L-98 cylinder head.
Basic Package Components Part # 100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job   8mm Bead Lock Intake Valve, 2.050" x 4.900" Overall Valve Length AFR #7252 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" Overall Valve Length AFR #7250 PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring,
140 lbs on seat, .600" maximum lift, Max RPM 6300-6800 AFR #8017 7° 7° Manley Chrome Moly Retainers 1.245" O.D x .885" I.D x .655" I.D AFR #8515 7° Bead Lock Valve Keepers AFR #9007 ARP 3/8" Rocker Studs AFR #6409 Adjustable 5/16" Guide Plates AFR #6103 Viton Valve Seals .600" O.D x .495" I.D AFR #6612 Hardened Spring Cup O.D Locator 1.380" O.D x .570" I.D AFR #8042 Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" O.D x .375" Deep AFR #9060 Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep AFR #9070 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L AFR #9051
Specifications, Features, and Optional Supporting Components Head Torque 65-70 ft. lbs Intake Port Volume 195cc Intake Port Dimension 2.110" H x 1.265" W 5/16 Radius Intake Port Location Stock Exhaust Port Volume 64cc Exhaust Port Dimension 1.450" H x 1.550" W Exhaust Port Location .100" Raised Combustion Chamber Size 55cc or 65cc Valve Cover Bolt Pattern Center and Perimeter Bolt Valve Angle 23° Valve Spring Pocket Diameter 1.460" O.D Max Valve Spring Pocket Machining 1.750" O.D Deck Thickness .750" Minimum Bore Diameter 4.000"  Flat Mill .006" per cc 60cc Maximum Angle Mill .009" per cc 55cc Maximum Minimum Cross Sectional Area 1.810 sq. in. Spark Plug Dimensions 14mm x .750" w/Gasket Seat     Intake Port Gasket GM #12524653 LT1 / Fel-Pro #1284 Exhaust Port Gasket, Fel-Pro #1404 AFR #6834
Head Gasket, 350cid Fel-Pro #1074 AFR #6803 SB Chevy Head Bolt Kit, ARP #134-3701 AFR #6310 SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 AFR #6305
Head Bolt Washers, Manley ARP #234-4301 AFR #6320 Stud Girdle GM L98 Fel-Pro #1074, AFR #6200 Suggested Manifold GM LT1 or LT4 Spark Plug Starting Range Autolite 3924  Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angle mills might require .120" Thick intake gasket.