SKU: 337377375

Holley Premium Mid-Mount Complete Accessory System - 20-180

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Description

Holley Premium Mid-Mount Complete Accessory System - 20-180Overview: Holley's Premium Mid Mount complete accessory system has all accessories pulled in tighter than other accessory drives. At the heart of the system is a "bracketless" design (Patent Pending), where the accessories bolt directly to the water pump for a clean, integrated form. The design offers superb engine visibility to show off your horsepower, not your accessories. Among the many swap friendly features are bottom heater outlets for

Overview:

Holley's Premium Mid-Mount complete accessory system has all accessories pulled in tighter than other accessory drives. At the heart of the system is a "bracketless" design (Patent Pending), where the accessories bolt directly to the water pump for a clean, integrated form. The design offers superb engine visibility to show off your horsepower, not your accessories. Among the many swap friendly features are bottom heater outlets for clearance in tight applications. The Holley designed alternator is just as innovative. This premium alternator utilizes 6-phase technology as found on the C7 Corvette. The water pump also shares its design efficiencies with that of the C7 Corvette. The compact and reliable SD7 A/C compressor and Type II P/S pump with baffled reservoir are also integrated. The Mid-Mount drive completes Holley's trilogy of accessory solutions giving a third option compared to the High and Low-Mount previously released. All three accessory solutions are for LS engines. When we say "complete", we mean complete. The Mid-Mount system comes with everything you need. All accessories are included; the water pump, A/C compressor, Alternator, P/S pump with reservoir, and an SFI certified damper w/hard anodized billet crank pulley. All pulleys and the belt are supplied. Even heater hose adapters, power steering to -6 AN hardline, and the alternator plug/harness are included. Easy assembly was a priority during the entire development of this accessory solution. Color graphical instructions walk you through every step of the ultra-easy installation. The Premium Mid-Mount system comes with dress up pulley covers and an SFI certified damper. Partnered with this damper is a billet 6061-T6 aluminum hard anodized crank pulley. This system is ready for the racetrack if you want to play or just be ready for anything on the street.

Features:

  • Bracketless accessory mounting with ultra-easy assembly
  • Bottom outlet heater hose options for swap application clearance
  • LT1 style premium 150 amp alternator
  • LT1 style water pump cartridge design
  • Compact SD7 A/C compressor
  • Type II power steering pump with baffled reservoir
  • P/S adapter hardline to AN -6 adapter included
  • Steam tube input port
  • Shortened top outlet nipple for more radiator hose turns and routing room
  • OE pulley ratios for optimal accessory performance
  • No adapters/spacers required!
  • Billet tensioner cover
  • Billet alternator, and compressor pulley covers
  • SFI certified damper w/hard anodized billet crank pulley
  • Works with all common aftermarket and factory Throttle bodies and intakes.
  • Works with VVT applications
  • Works with Hooker turbo manifolds.
  • Fits ALL LS engines except with dry sump and/or supercharger.

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

A/C Compressor Included Yes
A/C Compressor Type SD7
Accessory Drive Style Mid Mount
Alternator Amperage 150
Alternator Included Yes
Application GM LS
Belt Included Yes
Brand Holley
Choose Your Part Accessory Drive Kits
Damper Included Yes
Damper Style SFI Certified
Emission Code 5
Engine GM LS
Finish Cast
Inlet Size 35.4mm/1.4"
Material Cast Aluminum
Output 150 Amps
Power Steering Hardline Included Yes
Power Steering Pulley Included Yes
Power Steering Pump Included Yes
Power Steering Reservoir Included Yes
Product Type Accessory Drive Kits
Pulley Style Serpentine
Tensioner Included Yes
Thermostat Included Yes
Warranty Limited 90 Day
Water Neck Included Yes
Water Pump Included Yes
Water Pump Pulley Included Yes
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.
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SKU: 337377375

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4.5 ★★★★★
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Product Reviews
A
Aleana Harris
Battle Creek, US
★★★★★ 4
Good Read
Format: Kindle
I received an ARC copy of this book from the Publisher via Netgalley and voluntarily leaving my review. Amelia needs the money for Mizzou Moos, a mini highland cow rescue that she owns so she agrees to step in for her twin sister Zoey who can be at two places at once they did before what could go wrong. Amelia meets Lindsay who is a PA what shocking to Lindsay is her sudden attraction to Zoey when she learn the truth it’s becomes a slow burn between Amelia and Lindsay. I find it very funny with Zoey costars who couldn’t tell the difference when they spend a lot of time together because they both are different and it’s shows. Cute read some angst and can’t go wrong with animals in the story.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2025
E
Verified Purchase
Eleni Alevizos
Los Angeles, US
★★★★★ 5
A sexy sapphic romance that had me hooked… a cute story
Format: Paperback
I am so happy about Morgan Adam’s newest book!! The amount of love in this story!! I was holding onto to my seat for sure!!! Morgan is an amazing author/friend!! When I saw my name in your book I was screaming happy tears!! You are truly the best!! Your books will be cherished and talked about forever!!! This book surprised me at so many moments!! I had a lot of fun reading it and believing that love takes time and it does exist!!! A Conflict of Interest had me so hooked I could not stop reading and I wanted to find out more!!! So beautifully written!!! Super sexy and so cute, sapphic book with a doctor and lawyer so hot!! Darcy would be so proud of them!! This is so sweet and def so hot!! The cutest rom com yet!! I recommend 10 out of ten stars!! Morgan you are so incredible!!! 🩷😊📖🥰🙌🎇🥹
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 3, 2025
C
Crystal Randall
Chelsea, US
★★★★★ 4
Loved
Format: Kindle
This story had me hooked from just the first few chapters. I literally could not put it down, I love a good forbidden love story and this was just *chefs kiss*. I could feel the chemistry between Ana and Rachel from the moment they met. Their conversations are so well written, I loved the banter between them both. The drama throughout the book had me saying "just one more chapter before I take a break". I appreciated that you can tell that the author was knowledgeable about both of the main characters profession and religion and that the book took a focus on recognizing the characters differences and showing Ana take the time to learn about Rachel's religion. That was such a great touch that I loved. The only reason that I gave this book 4 stars instead of 5 is that the resolution of the drama and story seemed a bit anticlimactic. There was all this tension from secrets kept that once they came out both characters seemed to move on and get their happily ever after. Overall, I loved this book and its characters. I definitely will be picking up any book that this author puts out!
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Reviewed in the United States on October 14, 2025
R
Reader
Phoenix, US
★★★★★ 5
Amazing read!
Format: Kindle
I loved this book so much! I might be a little biased because I loved the first one so much and I’ve been dying for Ana to get happy ending ever since, but it was definitely a good book all around. Ana and Rachel were absolutely perfect for each other. They have the kind of opposing personalities that fit together like a puzzle. Where Rachel was a little more reserved and polished, Ana was more outgoing and messy. They didn’t clash, they completed each other. I’m not going to lie, love that they’re a doctor and a lawyer because they’re giving sapphic power couple. I also loved all of the supportive family members and best friends in this book. Stella and Charlotte were super cute and I hope we get to see them again in a later book. I thoroughly enjoyed this book and I’d recommend it to anyone looking for an opposites attract, doctor/lawyer romance. This is the second book that I’ve read from Morgan and it seems like she doesn’t miss.
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Reviewed in the United States on June 18, 2025
A
Andrea
Pawtucket, US
★★★★★ 4
Sapphic Lawyer and Doctor
Format: Paperback
I loved this book… which is why I was very disappointed when the conflict was “solved” so easily and lowkey brushed past. We are waiting for this secret to come out that Rachel has been holding onto. There’s obviously conflict of interest with Ana and Rachel. But the way they solved it? I didn’t feel like it was realistic and it felt like both women were like, “Okay, that’s over, everything is kosher now(pun intended?). It honestly prevented me from giving it 5 stars. The ending seems so rushed. But other than that, I loved both characters! I loved learning about Jewish culture and loved how the author portrayed it. Both MCs are fleshed out, in depth characters. The author had a good balance of humor
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Reviewed in the United States on September 11, 2025

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