AFR - Airflow Research 1120 - AFR Small Block Chevy 227cc Eliminator Race Aluminum Cylinder Heads

AFR – Airflow Research 1120 – AFR Small Block Chevy 227cc Eliminator Race Aluminum Cylinder Heads Details

Competition Package Race Ready CNC Porting Eliminator Heads

• Standard Exhaust Port Configuration
• 227cc Intake Port
• 80cc Exhaust Port 

  Small Block Chevy 227cc Eliminator Race Basic Package Components

  100% CNC Ported Combustion Chambers
  100% CNC Ported Exhaust Ports
  100% CNC Ported Intake Ports
  Competition 5-Angle Valve Job
  Intake Valve, 2.100” x 5.006” o.a.l.
  Exhaust Valve, 1.600” x 5.024” o.a.l.
  1.550” OD Solid Roller Dual Valve Spring, 225 lbs. on seat, .710” maximum lift, max RPM 7200-7400
  10º Manley 4140 Chrome Moly Retainers
  10º Valve Locks
  7/16” Rocker Studs
  Adjustable 5/16” Guide Plates
  Viton Valve Seals
  Hardened Spring Cups
  Intake Valve Seats
  Exhaust Valve Seats
  Bronze Valve Guides
  	Small Block Chevy 227cc Eliminator Race Head Specifications
  Head Torque w/Moly Lube	65-70 Ft. Lbs.
  Rocker Stud Torque	55 Ft. Lbs.
  Intake Port Gasket, 1.310” x 2.180” w/ 3/8” radius	Fel-Pro 1206 – DO NOT PORT MATCH Intake Manifold to Fel-Pro Gasket.
  Exhaust Port Gasket	Fel Pro 1405
  Head Gasket	350ci Fel Pro 1003 400ci Fel Pro 1014
  Head Bolts & Studs	Standard ARP
  Head Bolt Washers	Manley Standard
  Stud Girdle	AFR Offset 6208
  Suggested Manifold	AFR 4801, AFR 4802 or Edelbrock Vic Jr 2975 or Super Victor 2925
  Spark Plug Starting Range	Autolite 3910
  Combustion Chambers	75cc
  Intake Port	227cc
  Exhaust Port	80cc
  Spring Pocket can be cut to 1.680, no deeper.
  Valve Spacing	60/40
  Rocker Arms	.450” Offset / Shaft Mount
  Valve Angle	23°
  Angle Mill	.008” per cc
  Flat Mill	.006” per cc
  NOTE:	Flat and Angle mills might require a .120” thick head gasket.