Description
AFR – Airflow Research 1137 – AFR Small Block Chevy 245cc Eliminator NPP Race Aluminum Cylinder Heads Details
Competition Package CNC Porting Eliminator Heads
- Standard Exhaust Port Configuration
Small Block Chevy 245cc 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, 2.125” x 5.006” o.a.l. | ||
| Exhaust Valve, 1.600” x 5.024” o.a.l. | ||
| 1.550” OD Solid Roller Dual Valve Spring, 250 lbs. on seat, .800” maximum lift, max RPM 8300-8500 | ||
| 10º Manley 4140 Chrome Moly Retainers | ||
| 10º Valve Locks | ||
| Viton Valve Seals | ||
| Hardened Spring Cups | ||
| Intake Valve Seats | ||
| Exhaust Valve Seats | ||
| Bronze Valve Guides | ||
| Small Block Chevy 245cc 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 1004 400ci Fel Pro 1014 |
|
| Head Bolts & Studs | Standard ARP | |
| Head Bolt Washers | Manley Standard | |
| Suggested Manifold | AFR 4801, AFR 4802 or Edelbrock Vic Jr 2975 or Super Victor 2925 | |
| Spark Plug Starting Range | Autolite 3910 | |
| Combustion Chambers | 70cc | |
| Intake Port | 245cc | |
| Exhaust Port | 80cc+ | |
| Spring Pocket can be cut to 1.680, no deeper. | ||
| Valve Spacing | 60/40 | |
| Shaft Mount Rocker Arms | T&D .450” Offset w/.180” Offset Lifter – T&D .550” Offset w/Standard Lifter | |
| 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. | |
