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Holley Big Block Chevy Mid-Mount Complete Accessory System

Big Block Chevy Mid-Mount Complete Accessory System- Natural Finish

Part # 20-242

Holley Big Block Chevy Mid-Mount Complete Accessory System

Estimated Ship Date: 04/19/2024
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3

Emissions

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.

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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, 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. Patent - www.holley.com/patents/

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

About Holley

Looking for Holley performance products? We're the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, and more. Buy now!

A/C Compressor IncludedYes
A/C Compressor TypeSD7
Accessory Drive StyleMid-Mount
Alternator Amperage150
Alternator IncludedYes
ApplicationChevrolet Big Block
Belt IncludedYes
Brand Holley
Choose Your PartAccessory Drive Kits
Damper IncludedNo
Damper StyleFactory
Emission Code3
5
EngineChevy Big Block V8
FinishCast
Inlet Size35.4mm/1.4"
MaterialCast Aluminum
Output150 Amps
Power Steering Hardline IncludedYes
Power Steering Pulley IncludedYes
Power Steering Pump IncludedYes
Power Steering Reservoir IncludedYes
Product TypeAccessory Drive Kits
Pulley StyleSerpentine
Sale CategoryEngine
Tensioner IncludedYes
Thermostat IncludedNo
WarrantyLimited 90 Day
Water Neck IncludedYes
Water Pump IncludedYes
Water Pump Pulley IncludedYes
UPC090127072806
Part Number20-242
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.


The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle


WARNING: It is against the law to install this part on an Emissions Controlled Vehicle


The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
The power steering pump included can be used Hydroboost systems. Please refer to the flow specs on part number 198-101
Limited 90 Day: See Details

*Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.