855.444.6872 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE

Holley Mid-Rise Plenum Base Adapter Kit, GM LS1/LS2/LS6 300-267

Holley Mid-Rise Plenum Base Adapter Kit, GM LS1/LS2/LS6 300-267
Holley Mid-Rise Plenum Base Adapter Kit, GM LS1/LS2/LS6 300-267Holley Mid-Rise Plenum Base Adapter Kit, GM LS1/LS2/LS6 300-267Holley Mid-Rise Plenum Base Adapter Kit, GM LS1/LS2/LS6 300-267Holley Mid-Rise Plenum Base Adapter Kit, GM LS1/LS2/LS6 300-267Holley Mid-Rise Plenum Base Adapter Kit, GM LS1/LS2/LS6 300-267Holley Mid-Rise Plenum Base Adapter Kit, GM LS1/LS2/LS6 300-267
$382.99 ea
NEWOUT OF STOCK
Model: 4951584
STANDARD
DELIVERY
For use with LS Dual Plane Mid-Rise intake manifold base to adapt to modular tops. 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. 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.
Features:
  • Provides great performance to 6500 rpm for street/strip performance applications while providing the look of a racing EFI intake manifold
  • 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
  • Great for supercharged or turbocharged engines
  • Power band from 1500-6500 rpm
  • May require an aftermarket hood for some vehicle applications.
  • Cast aluminum construction
  • 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).
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.
Installation Notes:
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.
About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

Downloads:

Download Name File Size
199r11796.pdf810.51KB

Specifications:

Emission Code 5, 3
Part Type Engine Intake Manifold Spacer
Product Type Intake Manifold
Type of Component Manifold Top
Warranty Limited 90 Day

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

Holley Mid-Rise Plenum Base Adapter Kit, GM LS1/LS2/LS6 300-267:
Classic Chevy 2024