

SKU: SKU: EDE61339
The Edelbrock #61339 Victor Jr. LS3 cylinder head is ideal for use in high Performance's street and competition engines that have reached their limit with a stock-style cylinder head design. Most aftermarket LS3 cylinder head on the market today are simply stock head designs with larger ports. Our Victor Jr. LS3 cylinder head is an all-new ground up design that incorporates subtle changes for improved flow and combustion. These changes were made to improve the limitations encountered in the stock cylinder head when increasing the performance level of the engine. Changes include a 2.20" diameter intake valve with a canted configuration similar to what is utilized in the GM LT1 Gen V engine. The intake valve change along with the unique port shape produce almost 400cfm peak flow. This cylinder head also feature fully CNC intake ports, combustion chambers and exhaust ports for consistency and improved performance. All of these changes make this cylinder head capable of producing 600+ hp on an LS3 engine with stock rocker arms, intake manifold and exhaust manifolds.
Edelbrock part #61339 Victor Jr. LS3 (4-bolt flange) is a complete cylinder head ideal for use in high Performance's street and competition engines that have reached their limit with a stock-style cylinder head design.
| CNC Ported | No |
| Exhaust Port Location | +.125 |
| Exhaust Runner Volume | 85 CCM |
| Family | Victor Jr. |
| Seat Angle | Exhaust 39 deg/Intake 37 DD |
| Quantity | Sold Individually |
| Valve Stem Diameter | 0.314961 IN |
| Retainer Included | Yes |
| Valve Included | Yes |
| Combustion Chamber Volume | 69 CCM |
| Valve Spring Diameter | 1.30 IN |
| Seat Material | Ductile Iron |
| Construction Type | Complete |
| Valve Angle | Exhaust 11 X 0 deg/Intake 11 x 3 DD |
| Guide Plates Included | No |
| Head Casting Number | N/A |
| Guide Material | Manganese Bronze |
| Exhaust Valve Diameter | 1.60 IN |
| EGR Port | No |
| Series | Victor Jr. |
| Material | Aluminum |
| Intake Valve Diameter | 2.20 IN |
| Valve Springs Included | Yes |
| 9040 | D-215-98 |
| Horsepower | 500-650 HJ |
| Intake Runner Volume | 280 CCM |
| Valve Spring Maximum Lift | 0.680 IN |
| Camshaft Type | Hydraulic Roller |
| Grade Type | Performance |
| Deck Thickness | 0.625 IN |
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.
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