Afr 210cc 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 Steel Retainers as standard equipment. Not compatible with self-aligning rocker arms. Component upgrade and machining options are available to customize AFR Heads to your specific build.
Powerful and Proven Standard Valve and Stud Racing Head!
These reasonably priced AFR LT4 210cc cylinder heads in the Race Ready version features 100% CNC ported intakes while the higher flowing Competition version features 100% CNC ported intakes with greater detail and higher flowing exhaust ports as well. Also features 100% CNC ported 55cc-65cc combustion chambers and 80cc exhaust ports with a 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.080" intake and 1.600" exhaust with AFR's hardened ductile iron interlocking valve seats. The exceptional flow characteristics, 23° valve angle, and standard valve spacing make this the perfect head for 350 to 400 cid engines in bracket drag cars, sportsman oval trackers, and highly modified street class cars operating between 3000 and 7500 rpm (higher rpm ranges possible depending on combination of parts). No special parts are required, besides the LT4 intake manifold. Dual valve cover bolt pattern is standard.
The exhaust ports are raised .250" 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 2.080" x 5.000" O.A.L. AFR #7255 8mm Bead Lock Exhaust Valve 1.600" x 5.030" O.A.L. AFR #7254 1.550" OD Roller Dual Valve Spring w/ dampener, 220 lbs on seat, .710" maximum lift AFR #8000 Manley 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D AFR #8505 10° Bead Lock Valve Keepers with lashcap recess AFR #9009 ARP 7/16" Rocker Studs AFR #6405 Adjustable 5/16" Guide Plates AFR #6103 Viton Valve Seals .600" O.D x .495" I.D AFR #6612 ardened Valve Spring I.D Locator 1.550" O.D x .780" I.D AFR #8045 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 Material A356 Aluminum Intake Port Volume 210cc Intake Port Dimension 2.240" H x 1.310" W 3/8 Radius Intake Port Location Stock Exhaust Port Volume 80cc Exhaust Port Dimension 1.420" H x 1.545" W Exhaust Port Location .250" Raised Combustion Chamber Size 55cc or 65cc Valve Cover Bolt Pattern Center and Perimeter Bolt Valve Angle 23° Valve Spring Pocket Diameter 1.580" 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 Race Ready: 2.100 sp in, Comp 2.115 sq. in Spark Plug Dimensions 14mm x .750" w/Gasket Seat Carb EO# Not Emissions Complient Intake Port Gasket AFR #6860
Exhaust Port Gasket, Fel-Pro #1405 AFR #6835
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  AFR #6320 Stud Girdle GM L98  AFR #6200 Suggested Manifold GM LT4 or Edelbrock LT4 Spark Plug Starting Range Autolite 3922  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.