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AFR 210cc LT4 Eliminator SBC Aluminum Cylinder Heads

AFR 1057
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 Titanium 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.
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Description

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
10° Titanium Retainers 1.490" O.D x 1.115" I.D x .745" 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.

Details

Shipping Information

  • Item Requires Shipping
  • 65.0 lbs.
  • W12.0000” x H12.0000” x L24.0000”
  • Free Basic Shipping
  • This item ships in its own box.
  • FREE continental USA ground shipping on ALL AFR Cylinder Heads

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