210CC SBC LT4 RACE CYLINDER HEAD

$3,107.55

SOLD AS A PAIR

Option 1:



AFR’s 210cc “Competition” LT4 heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for race applications and aggressive street/strip builds up to 400 cubic inches, operating up to 6500-6800 RPM. Component upgrade and machining options are available to customize AFR Heads to your specific build (please call for all available options). To ensure trouble free operation of AFR cylinder heads & parts please view the footnotes for additional information. AFR heads are available bare (without parts), call our tech line for details.


Included Components
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" Overall Valve Length
8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length
PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, Max RPM 7200-7400
Manley 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D
10° Bead Lock Valve Keepers
ARP 7/16" Rocker Studs
Adjustable 5/16" Guide Plates
Viton Valve Seals .600" O.D x .495" I.D
Hardened Valve Spring I.D Locator 1.550" O.D x .705" I.D
Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep
Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L

210cc Race Ready Head Flow Chart
  .200 .300 .400 .500 .550 .600 .650
Int 145 199 248 285 301 309 311
Exh 110 158 192 210 214 220 222
210cc Competition Head Flow Chart
  .200 .300 .400 .500 .550 .600 .650
Int 147 201 257 296 310 318 322
Exh 120 160 214 225 229 235 237

Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe


Specifications & Features:
Material
A356 Aluminum
Intake Port Volume
210cc
Intake Port Dimension
2.200" H x 1.310" W x 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
65cc or 75cc
Valve Cover Bolt Pattern
Perimeter Bolt
Valve Angle
23°
Valve Spring Pocket Diameter
1.580" O.D
Max Valve Spring Pocket Machining
1.750" O.D
Warning: Do not machine spring pad any deeper.
Deck Thickness
.750"
Minimum Bore Diameter
4.000"
Flat Mill
.006" per cc 60cc Maximum
Angle Mill
.009" per cc 55cc Maximum
Note: Angle mills might require .120" Thick intake gasket.
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

 
Recommended Components:
Intake Gasket
Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes.
Exhaust Port Gasket, Fel-Pro #1405
Head Gasket, LT1 Fel-Pro #1074
SB Chevy Head Bolt Kit, ARP #134-3701
SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301
Head Bolt Washers, Manley
AFR Stud Girdle
Suggested Manifold
GM LT4 or Edelbrock LT4
Spark Plug Starting Range
Autolite 3922


Item# Description
1101

210cc SBC LT4 Race Cylinder Head



$3,107.55

ADD TO CART
1057

210cc SBC LT4 Race Cylinder Head



$2,459.46

ADD TO CART

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