Holley's Mid-Mount accessory drives are now available for your small block Chevrolet engines. The revolutionary system does what no other accessory bracket system has done… IT 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/
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The Mid-Mount complete accessory system has all accessories pulled in tighter than other accessory drives
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Bracketless accessory mounting with ultra-easy assembly
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O-ring seal to engine
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Hidden thermostat bypass and heater hose ports with NPT line adapters included
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LT1 style premium alternator
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LT1 style water pump design
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Compact SD7 A/C compressor with line adapter included
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Type II power steering pump with baffled reservoir
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P/S adapter hardline to AN -6 adapter included
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OE pulley ratios for optimal accessory performance
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Available in natural and black finishes
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Billet alternator, tensioner, and compressor pulley covers
A/C Compressor Included |
Yes |
|---|---|
A/C Compressor Type |
SD7 |
Accessory Drive Style |
Mid-Mount |
Alternator Amperage |
150 |
Alternator Included |
Yes |
Application |
Chevrolet Small Block |
Belt Included |
Yes |
Brand |
Holley |
Category Filter |
Accessory Drives |
Choose Your Part |
Accessory Drive Kits |
Clearance Category |
Accessory Drives |
Damper Included |
No |
Damper Style |
Factory |
Emission Code |
5 |
Engine |
Chevrolet Small Block Gen I |
Finish |
Black |
Inlet Inside Diameter |
35.4mm / 1.4" |
Inlet Outside Diameter |
48mm / 1.9" |
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 |
Sale Category |
Engine |
Tensioner Included |
Yes |
Thermostat Included |
No |
Warranty |
Limited 90 Day |
Water Neck Included |
Yes |
Water Pump Included |
Yes |
Water Pump Pulley Included |
Yes |
UPC |
090127072240 |
Part Number |
20-240 |
ABOUT HOLLEY PERFORMANCE
For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.
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