Holley Mid-Rise EFI Intake Manifold & Rail Kit, LS1
Single Plane Mid-Rise EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads.
- Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219
- 2500-7000 RPM power band
- 4150 Square bore flange
- Optimized runner layout and constant cross sectional area – broad torque curve, best vehicle performance from 2500-7000 RPM
- Minimum carb flange height – fit in vehicles with minimum hood modifications
- Cast aluminum construction – great manifold for centrifugal blower, turbocharged or NOS power adder applications
- Efficient casting design – lightweight, consistent wall thicknesses, improved casting quality
- Weight – 11.5 lbs.
- Height (front) – 5.417″ to the lifter valley cover flange at the engine block front flange
- Port size – 2.50″ height x 1.15″ wide
- Includes Viton® O-ring intake to cylinder head gaskets – Viton® is a registered trademark of DuPont Performance Elastomers
- EFI Fuel Rail Kit included
Charts
| KEY SPECS | |
|---|---|
| Brand | Holley |
| Intake Manifold Type | Dual Plane | Medium Rise |
| RPM Range | 2,500-7,000 |
| Material Type | Aluminum |
| GENERAL | |
| Fuel System Type | EFI |
| Injection Style | Multi-port |
| Finish | Natural |
| EGR | No |
| Intake Section Included | Complete |
| Plenum Material | Aluminum |
| Plenum Finish | Natural |
| Throttle Body Included | No |
| Injectors Included | No |
| Aftermarket Fuel Rail Required | Yes |
| Fuel Rails Included | Yes |
| Overall Height | 5.47″ |
| Runners Included | No |
| Runners Removable | No |
| Supplemental Bosses Cast-In | No |
| Supplemental Bosses Machined | No |
| Sold in Quantity | Kit |
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