SKU: 31270888379

Holley Big Block Chevy Mid-Mount Complete Accessory System - 20-242BK

Sale price$989.97 Regular price$1099.97
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

Holley Big Block Chevy Mid-Mount Complete Accessory System - 20-242BKOverview: Holley's Mid Mount accessory drives are now available for your big block Chevrolet engines! The revolutionary system does what no other accessory bracket system has done GETS RID OF THE BRACKETS! The 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,

Overview:

Holley's Mid-Mount accessory drives are now available for your big block Chevrolet engines! The revolutionary system does what no other accessory bracket system has done… GETS RID OF THE BRACKETS! The 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. 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 water pump design incorporates optional side or top heater ports. The top thermostat bypass and heater ports are recessed into the manifold. So if you don't need them, you don't see them! 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, and P/S pump with reservoir. All pulleys and the belt are supplied. Even A/C line adapter, 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.

Features:

  • The Mid-Mount complete accessory system has all accessories pulled in tighter than other accessory drives.
  • Bracketless accessory mounting with ultra-easy assembly
  • O-ring seal to engine
  • Hidden thermostat bypass and heater hose ports with NPT line adapters included
  • LT1 style premium alternator
  • LT1 style water pump design
  • Compact SD7 A/C compressor with line adapter included
  • Type II power steering pump with baffled reservoir
  • P/S adapter hardline to AN -6 adapter included
  • OE pulley ratios for optimal accessory performance
  • Available in natural and black finishes
  • Billet alternator, tensioner, and compressor pulley covers

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 Chevrolet Big Block
Belt Included Yes
Brand Holley
Choose Your Part Accessory Drive Kits
Damper Included No
Damper Style Factory
Emission Code 3
Engine Chevy Big Block V8
Finish Black
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 No
Warranty Limited 90 Day
Water Neck Included Yes
Water Pump Included Yes
Water Pump Pulley Included Yes
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31270888379

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4.3 ★★★★★
Based on 23 reviews
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R
Verified Purchase
Robert Preato
West Palm Beach, US
★★★★★ 5
Quality is good considering low cost.
Color: Silver1
Good quality for an inexpensive salt/pepper grinder. Works fine and should last a reasonable time
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
V
Verified Purchase
versim
Chelsea, US
★★★★★ 4
Looks nice and seems to work well, but the black retaining ring randomly fell out.
Color: 1pcs-Sliver-304, Color: 1pcs-Sliver-304
The pepper grinder looks nice and initially functioned well as expected. However, as at least 9 other reviewers have noted experiencing, within 2 weeks of purchase and after very minimal usage, the black retaining ring around the grinder cone & adjustment knob just fell out when I was using the grinder, which was disappointing and indicative of poor design or construction for this part. After some research & experimentation, I was able to pop the ring back into place using needle-nose pliers (you just need something hard and narrow to push and flex the ring a bit, not necessarily pliers). I'm hoping that this is not a harbinger of other problems to come. Otherwise it's a nice grinder.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
U
Verified Purchase
Ultralinear
West Palm Beach, US
★★★★★ 5
Not Overly Large and Easy to Use
Color: Silver1, Color: Silver1
I’ve been looking for a salt grinder for a long time. I was hoping to find something small—closer to the disposable grinders you see at the grocery store—but those don’t really seem to be available. So I decided to try this one, and overall I’m glad I did. I’ve included photos to give a better sense of the size compared to your store size non-refillable salt grinders, since it’s a bit larger than what I originally had in mind. The grinder works smoothly and doesn’t require much effort to use. You can easily adjust the grind size by turning the knob on the top of the grinder, which is a nice feature. Refilling it was also straightforward. I had no trouble pouring in coarse Himalayan salt from a larger container without making a mess.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
C
Verified Purchase
Carol Hufford
Belleville, US
★★★★★ 5
Salt or pepper grinder.
Color: Silver1
Excellent product. I accidentally broke one of mine and was pleased that I was able to purchase one grinder. They’re beautiful and very well made. Grind salt and pepper easily and many different coarseness. And they are pretty.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
B
Verified Purchase
Burnerjack
Chelsea, US
★★★★★ 5
Inexpensive but certainly not 'cheap'
Color: Silver1
These work well and feel like very good quality far in excess of what you might expect for the price. I am very happy with my purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026

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