AFR 1057 LT4 210/65CC .710 LIFT ASSEMBLED LOWEST PRICE ON EVERY PART NUMBER MADE
CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. AFR's 210cc "Race Ready" and "Competition" 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. 210cc Aluminum SBC Cylinder Heads Part # Plug Type Porting Finish Combustion Chamber 1057 GM LT4 Race Ready 65cc 1101 GM LT4 Competition 65cc Click part # to add product to your cart 210cc Race Ready Head Flow Chart .200 .300 .400 .500 .550 .600 .650 Int 145 199 255 292 301 309 311 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 120 166 214 225 229 235 237 Test conducted at 28" of water (pressure) on Superflow 600Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe 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 7255 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length 7254 PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, Max RPM 7200-7400 8000 Manley 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D 8511 10° Bead Lock Valve Keepers 9009 ARP 7/16" Rocker Studs 6405 Adjustable 5/16" Guide Plates 6103 Viton Valve Seals .600" O.D x .495" I.D 6612 Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D 8048 Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep 9060 Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep 9070 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L 9051 Recommended Components: Intake Gasket 6860 Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads. Exhaust Port Gasket, Fel-Pro #1405 6835 Head Gasket, LT1 Fel-Pro #1074 6803 SB Chevy Head Bolt Kit, ARP #134-3701 6310 SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 6305 Head Bolt Washers, Manley 6320 AFR Stud Girdle 6200 Suggested Manifold GM LT4 or Edelbrock LT4 Spark Plug Starting Range Autolite 3922 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 SHIPS IN THE LOWER 48 STATES FREE! CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. CONTACT US THE PRICE IS NEGOTIABLE BEST OFFER Warning: May cause cancer and reproductive harm.