Holley® - Mid-Mount Complete Accessory Drive System

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Vehicle Fitment

Chevy

GMC

Specifications

Brand	Holley®
Finish	Cast
Material	Cast Aluminum
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
Choose Your Part	Accessory Drive Kits
Damper Included	No
Damper Style	Factory
Emission Code	5
Engine	Chevy Big Block V8
Inlet Size	35.4mm/1.4"
Output	150 Amps
Power Steering Hardline Included	Yes
Power Steering Pulley Included	Yes
Power Steering Pump Included	Yes
Power Steering Reservoir Included	Yes
Pulley Style	Serpentine
Tensioner Included	Yes
Thermostat Included	No
Warranty	Manufacturer's Limited 90 Day Warranty
Water Neck Included	Yes
Water Pump Included	Yes
Water Pump Pulley Included	Yes

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

Product Details

Mid-Mount Complete Accessory Drive System (20-242) by Holley®. Finish: Cast. Material: Cast Aluminum. Holley's 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.

Installation

Holley® - Mid-Mount Complete Accessory Drive System Installation Instructions

Holley® - Mid-Mount Complete Accessory Drive System Installation Instructions Holley® - Catalog Holley® - Warranty Holley Authorized Dealer FAQ Video About us

Brand:

Holley

Part Number:

20-242

UPC:

090127072806

Alternate MPN:

20242

Warranty

Holley warrants its products to be free from defects in materials or workmanship for a period of 90 days. The warranty period begins on the date the product is delivered.

Holley Performance Products Limited Warranty specifically does not apply to products, which have been (a) modified or altered in any way; (b) subjected to adverse conditions, such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, corrosion, or faulty repair; or (c) used in other than those applications recommended by Holley Performance Products. Holley Performance Products also does not warrant, and disclaims all liability for products used in racing activities and/or applications other than those specifically recommended in the current brand catalog.

Holley limits the warranty on Metallic Ceramic Coatings to be free from defects in material and workmanship for a period of 90 days from the date of purchase. This limited coating warranty does not apply to any products which have been subjected to adverse conditions, such as high heat encountered during engine break-in or if used during any racing activity.

Holley Performance Products warrants its new marine products to be free from defects in material and workmanship for a period of 90 days from date of purchase. For the safety and protection of persons and property, all United States Coast Guard and other marine product safety installation and use requirements and recommendations must be carefully studied and applied. The above recommendations include, but are not limited to the recommendation that the installation, adjustment, and repair of Holley carburetors or other marine products must be performed only by a trained mechanic having adequate marine fuel system experience, and in strict compliance with the applicable Holley installation, maintenance, and other instructions. Failure to follow such requirements and recommendations will void this Holley Marine Limited Warranty, and Holley disclaims any responsibility and/or liability for accidents resulting from such failure.

Holley® Performance Products warrants its Holley® Street Avenger™ Carburetor to be free from defects in material and workmanship for the life of the product on parts and one year on repair labor. After a period of one year, Holley® will charge standard rates for repair labor. For any Holley® Street Avenger™ Carburetor used in any type racing or off-road use will only be covered by a one (1) year limited warranty on parts and labor.

Holley® Performance Products warrants its Holley® Marine Avenger™ Carburetor to be free from defects in material and workmanship for the life of the product on parts and one year on repair labor. After a period of one year, Holley® will charge standard rates for repair labor. For any Holley® Marine Avenger™ Carburetor used in any type racing or off-road use will only be covered by a one (1) year limited warranty on parts and labor.

Magnuson-Moss Warranty Act:

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

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