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Holley®  |  SKU: 20-370BK

Holley® #20-370BK Small Block Ford Mid-Mount Complete Accessory Drive System

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Regular price $2,549.95
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Description

Holley's Mid-Mount accessory drives are available for small block Ford engines! 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" mounting, the accessories mount directly to a uniquely designed timing cover for a clean, integrated form. This product offers superb engine visibility to show off your engine, not unsightly accessory brackets. The Holley designed alternator is also innovative. This premium alternator utilizes 6-phase technology as found on the C7 Corvette. The water pump cartridge 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 design provides two heater hose return port locations (upper top & passenger-side low). 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. 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 installation.

Features:

  • The Mid-Mount complete accessory system has all accessories pulled in tighter than other accessory drives.

  • Bracketless accessory mounting integrated with supplied front timing cover assembly

  • Water pump inlet pipe mounts for either drivers-side or passenger-side lower radiator hose routing, timing cover also has mounting for driver or pass-side ignition timing pointers

  • Two return heater hose ports (upper center & pass-side low) with hose adapter/port plug included

  • Crankshaft belt pulley configured for 3 or 4-bolt crank dampers, spacer p/n’s 97-446, 97-447, or 97-448 are available for purchase to adjust for different OE crank damper pulley flange depths

  • Driver & pass-side A/C hose connections are available for purchase to account for A/C routing on different vehicles, p/n’s 97-443 (driver-side) & 97-444 (pass-side)

  • Power steering may be deleted with a drive belt change, see installation instructions for the commonly available drive belt required

  • A mechanical fuel pump may be used with this kit. See installation instructions for required timing cover mod to be performed and the power steering pump will need relocation, use kit 97-436, a remote mounted P/S reservoir also required

  • C7 LT1 style premium alternator, 150 amp

  • C7 LT1 style water pump design

  • Compact SD7 A/C compressor

  • 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

A/C Compressor Bracket Color

Black

A/C Compressor Bracket Included

Yes

A/C Compressor Bracket Material

Aluminum

A/C Compressor Included

Yes

A/C Compressor Pulley Color

Black

A/C Compressor Pulley Grooves

6

A/C Compressor Pulley Included

Yes

A/C Compressor Pulley Material

Steel

A/C Compressor Type

SD7

Accessory Drive Style

Mid-Mount

Alternator Amperage

150 68

Alternator Bracket Color

Black

Alternator Bracket Material

Aluminum

Alternator Brackets Included

Yes

Alternator Color

Black

Alternator Fan Included

Built-In

Alternator Included

Yes

Alternator Material

Cast Aluminum

Alternator Pulley Color

Black

Alternator Pulley Grooves

6

Alternator Pulley Included

Yes

Alternator Pulley Material

Steel

Alternator Style

LT1

Application

Small Block Ford

Belt Color

Black

Belt Groove Quantity

6

Belt Included

Yes

Belt Type

Serpentine

Brand

Holley

Category Filter

Accessory Drives

Choose Your Part

Accessory Drive Kits

Crankshaft Pulley Bolt Hole Quantity

3

4

Crankshaft Pulley Color

Black

Crankshaft Pulley Grooves

6

Crankshaft Pulley Included

Yes

Crankshaft Pulley Material

Steel

Damper Included

No

Damper Style

Factory

Emission Code

5

Engine

Ford Small Block

Finish

Black

Grade Type

Performance

Hardware Included

Yes

Housing Material

Aluminum

Idler Bracket Included

N/A

Idler Included

N/A

Idler Pulley Color

N/A

Inlet Inside Diameter

44.62mm/17.6"

Inlet Outside Diameter

51.45mm/2.025"

Material

Aluminum

Output

150 Amps

Power Steering Hardline Included

Yes

Power Steering Pulley Included

Yes

Power Steering Pump Bracket Color

Black

Power Steering Pump Bracket Material

Aluminum

Power Steering Pump Brackets Included

Yes

Power Steering Pump Color

Black

Power Steering Pump Included

Yes

Power Steering Pump Pulley Attachment

Press-On

Power Steering Pump Pulley Color

Black

Power Steering Pump Pulley Grooves

6

Power Steering Pump Pulley Material

Steel

Power Steering Pump Reservoir Color

Black

Power Steering Pump Reservoir Material

Plastic

Power Steering Pump Reservoir Style

Attached

Power Steering Pump Style

GM Type 2

Power Steering Reservoir Included

Yes

Product Type

Accessory Drive Kits

Pulley Material

Composite and Steel

Tensioner Color

Black

Tensioner Cover Color

Black

Tensioner Cover Included

Yes

Tensioner Cover Material

Aluminum

Tensioner Included

Yes

Tensioner Type

Spring Loaded

Thermostat Included

No

Universal Or Specific Fit

Specific

Warranty

Limited 90 Day

Water Neck Included

No

Water Pump Color

Black

Water Pump Included

Yes

Water Pump Material

Aluminum

Water Pump Pulley Color

Black

Water Pump Pulley Grooves

6

Water Pump Pulley Included

Yes

Water Pump Pulley Material

Steel

Water Pump Rotation

Counterclockwise (Left)

Water Pump Style

GM Cartridge

UPC

090127865255

Part Number

20-370BK


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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