SKU: SKU: EDE61205
The Edelbrock part #61205 Small Block Chevy E-CNC 225 cylinder head offers the ultimate performance. This cylinder head is fully CNC ported for maximum horsepower and torque, making them ideal for high-performance's street and racing applications. They also feature high-quality lightweight valve springs and heavy duty hardware for maximum lift. E-CNC S/B CHEVY FEATURES: - Features fully CNC machined intake ports, combustion chambers and exhaust ports for improved performance - Maintains the stock 23deg valve angle and intake flange bolt pattern for use with 1986 and earlier intake manifolds - Delivers up to 30-60 horsepower over Performer RPM cylinder head - #61205 & #61209 features 7/16" studs and angled spark plugs - Ideal for high Performance's street and racing applications
The Edelbrock part #61205 SB Chevy E-CNC 225 cylinder heads offer the ultimate performance. These cylinder heads are fully CNC ported for maximum horsepower and torque, making them ideal for high-performance's street and racing applications
| Camshaft Type | Hydraulic Roller |
| Horsepower | 500-600 HJ |
| Push Rod Diameter | (Suggested) 0.3125 IN |
| Deck Thickness | 0.5625 IN |
| Seat Angle | Exhaust 45 deg/Intake 45 DD |
| Valve Stem Diameter | 0.3110 IN |
| Seat Material | Ductile Iron |
| Guide Material | Manganese Bronze |
| Family | E-CNC |
| Exhaust Valve Diameter | 1.60 IN |
| EGR Port | No |
| Quantity | Sold Individually |
| Intake Valve Diameter | 2.10 IN |
| Valve Angle | 23 DD |
| Combustion Chamber Volume | 64 CCM |
| Valve Spring Maximum Lift | 0.680 IN |
| CNC Ported | Yes |
| Exhaust Port Location | +.200 |
| Construction Type | Complete |
| Rotor Center Bore Inside Diameter | angled |
| Rocker Arm Stud Diameter | 0.4375 IN |
| Exhaust Runner Volume | 88 CCM |
| Series | E-CNC |
| Retainer Included | No |
| Valve Spring Diameter | 1.34 IN |
| 8788 | Yes |
| 10024 | No |
| 8789 | Yes |
| 10025 | Yes |
| 10252 | Chromoly Steel |
| 10583 | No |
| 10261 | No |
| 10671 | Yes |
| 10 | Aluminum |
| 30 | No |
| 6627 | 225 CCM |
| 6635 | 31-6120 |
| 6634 | Yes |
| 6636 | Chromoly Steel |
| 3390 | Performance |
| 6621 | 9.025 IN |
| 10582 | No |
| 306 | Yes |
| 9799 | Yes |
| Valve Lock Material | Steel |
| Guide Plate Material | Hardened Steel |
California Prop 65 Warning: WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.