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Holley Holley Mid-Rise Plenum Base Adapter Kit - GM LS1/LS2/LS6 300-267
$362.99
Being part of the Holley modular intake line means that this intake is not only available as a complete kit with intake, adapter, 92MM top and fuel rails, but all parts can also be purchased separately for a custom intake build. The plenum adapter (PN 300-267) will accept all of the popular Holley Hi-Ram plenum tops as a foundation for custom induction systems.
Specifications:
| Brand | Holley |
| Category | Air and Fuel Delivery |
| Emission Code | 3 |
| 3390 | Performance |
| 7183 | Cast |
| 1850 | Aluminum |
| 8161 | 12 |
| Material | Aluminum |
| part type | Engine Intake Manifold Conversion Kit |
| Product Type | Intake Manifold |
| Sub Category | Service Kits |
| Type of Component | Manifold Top |
| Warning | California Proposition 65 |
| Warranty | Manufacturer's Limited 90 Day Warranty |
| Description_INV | MID RISE PLENUM-BASE ADAPTER KIT |
| Description_ASC | Holley EFI LS main harnesses have a map sensor connecter designed for use with an LS1/2 style map sensor. The 558-416 is an adapter harness that can be used to adapt any LS harness that uses a LS1/2 MAP sensor connection to a LS3 MAP, which is recommended for this manifold. |
| Description_DES | Holley Mid-Rise Plenum Base Adapter Kit - GM LS1/LS2/LS6 |
| Description_EXT | The Modular Mid-Rise intake utilizes the popular Holley LS1/LS2/LS6 cathedral port Mid-Rise 2 x 4 intake manifold along with a plenum base adapter and a Holley 92MM EFI plenum top which converts it into a Mid-Rise EFI intake manifold. |
| Description_MKT | For use with LS Dual Plane Mid-Rise intake manifold base to adapt to modular tops. |
| Description_MKT | The Modular Mid-Rise intake utilizes the popular Holley LS1/LS2/LS6 cathedral port Mid-Rise 2 x 4 intake manifold along with a purpose built plenum base adapter and a Holley 92MM EFI plenum top which converts it into a Mid-Rise EFI intake manifold. With a max overall height of only 10.44", the Mid-Rise manifold is an excellent choice for street and performance street/strip applications with a powerband from 1,500-6,500 RPM and limited hood clearance. It's perfect for a blow-thru or turbocharged application. |
| Description_MKT | Being part of the Holley modular intake line means that this intake is not only available as a complete kit with intake, adapter, 92MM top and fuel rails, but all parts can also be purchased separately for a custom intake build. The plenum adapter (PN 300-267) will accept all of the popular Holley Hi-Ram plenum tops as a foundation for custom induction systems. |
| Description_FAB | Provides great performance to 6500 rpm for street/strip performance applications while providing the look of a racing EFI intake manifold |
| Description_FAB | Unique modular design allows the combination of a traditional dual-plane layout with an EFI manifold plenum to produce great mid-range torque without compromising top end power |
| Description_FAB | Great for supercharged or turbocharged engines |
| Description_FAB | Power band from 1500-6500 rpm |
| Description_FAB | May require an aftermarket hood for some vehicle applications. |
| Description_FAB | Cast aluminum construction |
| Description_FAB | Intended for use on all GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads (recalibration of the ECU may be required when using this intake manifold design with OE ECU). |