Description
AFR – Airflow Research 1115 – AFR Small Block Chevy 220cc Eliminator Race Aluminum Cylinder Heads Details
Competition Package Race Ready CNC Porting Eliminator Heads
- Spread Exhaust Port Configuration
- 220cc Intake Port
- 80cc Exhaust Port
Small Block Chevy 220cc 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 220cc 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 1409 | |
Head Gasket | 350ci Fel Pro 1003 400ci Fel Pro 1014 |
|
Head Bolts & Studs | Standard ARP | |
Head Bolt Washers | Manley Standard | |
Stud Girdle | Standard | |
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 | 220cc | |
Exhaust Port | 80cc | |
Spring Pocket can be cut to 1.750, no deeper. | ||
Valve Spacing | Standard GM | |
Rocker Arms | Standard | |
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. |