Holley Mid-Rise Plenum Base Adapter Kit - GM LS1/LS2/LS6 300-267
SKU: 76761739957

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

Sale price$140.37 Regular price$155.97
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Description

Holley Mid-Rise Plenum Base Adapter Kit - GM LS1/LS2/LS6 300-267The 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. For use with LS Dual Plane Mid Rise intake manifold base to adapt to modular tops. 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

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.

For use with LS Dual Plane Mid-Rise intake manifold base to adapt to modular tops.

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.

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).

Specs:

Brand Holley
Emission Code 3
Grade Type Performance
Manifold Color Cast
Manifold Material Aluminum
Manifold Mount Hole Quantity 12
Material Aluminum
Product Type Intake Manifold
Type of Component Manifold Top
Warranty Limited 90 Day
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 76761739957

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Lake Worth, US
★★★★★ 5
This is the one!
Color: P-Storage Cover Black, Size: Prestige Rechargeable
THE BEST FROTHER!! I use a frother every morning for my skim milk and have gone through several. The battery powered ones I’ve bought work but end up bent and wobbly. I’ve had other rechargeable frothers that don’t have enough power to froth milk more than one day or two. This one checks all the boxes! Comes in a protective case and holds a charge for over a week w daily use. It is so strong I use the low setting for frothing and it makes a beautiful foam top for my coffee. Also use it to mix protein powder into liquid as well as other powders- no lumps! You could easily whip cream w this thing! Highly recommend!
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Reviewed in the United States on May 9, 2026
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Astute technician
Charlottesville, US
★★★★★ 5
Nearly instant blending
Color: P-Storage Cover Black, Size: Prestige Rechargeable
Wow! That's my impression of this handy gadget. It has a quality feel to it and super easy to understand. I charged it up full and have used it more than a dozen times with no sign of it needing a recharge. My main use is to blend my protein powder into milk and juice in the morning. Let me tell you - it takes about five seconds. Instead of fighting the blend with a spoon for nearly a minute this frother has it done so quickly it's amazing. The powder and fluids are mixed WAY better than with a spoon and in record time. It also makes the drink much smoother and the taste is thick and creamy. It's hard to describe how easily it functions. Oh and clean up? That's a snap. Just dunk it in clear water and turn it on a few seconds. This is one of the handiest tools I've ever added to my kitchen.
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Reviewed in the United States on March 22, 2026
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Marcy Kreoger
San Leandro, US
★★★★★ 4
Powerful
Color: P-Storage Cover Black, Size: Prestige Rechargeable
The only reason I gave this a 4 star is that I wish it had a slower speed. Have to be careful not to fling liquid everywhere with a smaller cup. It does have power!!
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Reviewed in the United States on May 26, 2026
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Birgitte P.
Draper, US
★★★★★ 5
Like this tem a lot. Fast to charge, no batteries needed. 2 speeeds and works great.
Color: P-Stand & Storage Cover Black, Size: Prestige Rechargeable
Really like this iitem. No batteries because its rechargeble. It has 2 speeds and is really fast. So much more power than my old battery one.
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Reviewed in the United States on May 31, 2026
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Kindle Customer
Draper, US
★★★★★ 5
Good product
Color: P-Storage Cover Black, Size: Prestige Rechargeable
Works as it should. Easy to clean and charges quickly.
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Reviewed in the United States on May 10, 2026

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