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Holley Ford Mid-Mount Accessory Drive Systems 20-370BK Systems, Mid-Mount, Serpentine, 150 Amp Alternator, GM Type 2 Power Steering, SD-7, Black Finish, Ford, Kit

SKU: HLY20-370BK

Accessory Drive Systems

Holley Ford Mid-Mount Accessory Drive Systems 20-370BK Systems, Mid-Mount, Serpentine, 150 Amp Alternator, GM Type 2 Power Steering, SD-7, Black Finish, Ford, Kit

SKU: HLY20-370BK

Accessory Drive Systems
A$5,115.00
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Holley's mid-mount accessory drives are available for small-block Ford engines. These systems have all accessories pulled in tighter than other accessory drives. At their heart is a "bracket-less" mounting design—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 premium alternator utilizes 6-phase technology as found on the C7 Corvette and only requires a one-wire hookup. The water pump cartridge also shares its design efficiencies with that of the C7 Corvette. A compact and reliable SD7 A/C compressor and Type II power steering pump with baffled reservoir are also integrated. This system design provides two heater hose return port locations (upper top and passenger-side low).

The mid-mount system comes complete with everything you need: the water pump, A/C compressor, alternator, and power steering pump with reservoir. All pulleys and the belt are supplied, along with heater hose adapters, power steering to-6 AN hardline, and the alternator plug/harness. Color graphical instructions walk you through every step for an easy installation. Systems are available with a natural or black finish.

Features and benefits:

* Bracket-less accessory mounting integrated with supplied front timing cover assembly means this kit will work on all block deck heights
* Water pump inlet pipe mounts for either driver or passenger side lower radiator hose routing; timing cover also has mounting for driver or passenger side ignition timing pointers to accommodate all needs
* Two return heater hose ports (upper center and pass-side low) with hose adapter/port plug included for a complete solution
* Crankshaft belt pulley configured for 3 or 4-bolt crank dampers; spacer P/Ns 97-446, 97-447, or 97-448 are available for purchase to adjust for different OE crank damper pulley flange depths
* Power steering may be deleted with a drivebelt 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 is 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-6 AN adapter included
* OE pulley ratios for optimal accessory performance

Part Type

MID-MT ACC Drive System SBF Black

Data: v4.2 - Upd: 2026-09-29 03:26:58

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
20-370BK
Product Attributes - Part Type
Accessory Drive Systems
Product Attributes - Product Line
Holley Ford Mid-Mount Accessory Drive Systems
Product Attributes - UPC
90127865255
Product Attributes - Pulley Style
Serpentine
Product Attributes - Crankshaft Pulley Included
Yes
Product Attributes - Crankshaft Pulley Material
Aluminum
Product Attributes - Crankshaft Pulley Color
Black
Product Attributes - Crankshaft Pulley Bolt Hole Quantity
Three/Four
Product Attributes - Crankshaft Pulley Grooves
6-groove, serpentine
Product Attributes - Water Pump Material
Cast aluminum
Product Attributes - Water Pump Color
Black
Product Attributes - Water Pump Rotation
Counterclockwise
Product Attributes - Water Pump Pulley Included
Yes
Product Attributes - Water Pump Pulley Material
Steel
Product Attributes - Water Pump Pulley Color
Black
Product Attributes - Water Pump Pulley Grooves
6-groove, serpentine
Product Attributes - Power Steering Pump Style
GM Type 2
Product Attributes - Power Steering Pump Color
Natural
Product Attributes - Power Steering Pump Reservoir Included
Yes
Product Attributes - Power Steering Pump Reservoir Style
Attached
Product Attributes - Power Steering Pump Reservoir Material
Plastic
Product Attributes - Power Steering Pump Reservoir Color
Black
Product Attributes - Power Steering Pulley Included
Yes
Product Attributes - Power Steering Pulley Material
Steel
Product Attributes - Power Steering Pulley Color
Black
Product Attributes - Power Steering Pulley Attachment
Press fit
Product Attributes - Power Steering Pulley Grooves
6-groove, serpentine
Product Attributes - Power Steering Brackets Included
Yes
Product Attributes - Power Steering Bracket Material
Aluminum
Product Attributes - Power Steering Bracket Color
Black
Product Attributes - Alternator Material
Cast aluminum
Product Attributes - Alternator Color
Black
Product Attributes - Alternator Amperage
150
Product Attributes - Alternator Style
1-wire
Product Attributes - Alternator Pulley Included
Yes
Product Attributes - Alternator Pulley Material
Steel
Product Attributes - Alternator Pulley Color
Black
Product Attributes - Alternator Pulley Grooves
6-groove, serpentine
Product Attributes - Alternator Fan Included
No
Product Attributes - Alternator Brackets Included
Yes
Product Attributes - Alternator Bracket Material
Aluminum
Product Attributes - Alternator Bracket Color
Black
Product Attributes - Air Conditioning Compressor Type
SD7
Product Attributes - Air Conditioning Pulley Included
Yes
Product Attributes - Air Conditioning Pulley Material
Steel
Product Attributes - Air Conditioning Pulley Color
Black
Product Attributes - Air Conditioning Pulley Grooves
6-groove, serpentine
Product Attributes - Air Conditioning Bracket Included
Yes
Product Attributes - Air Conditioning Bracket Material
Aluminum
Product Attributes - Air Conditioning Bracket Color
Black
Product Attributes - Idler Included
No
Product Attributes - Idler Brackets Included
No
Product Attributes - Tensioner Included
Yes
Product Attributes - Tensioner Style
Spring-loaded
Product Attributes - Tensioner Pulley Color
Black
Product Attributes - Tensioner Cover Included
Yes
Product Attributes - Tensioner Cover Material
Aluminum
Product Attributes - Tensioner Cover Color
Black
Product Attributes - Hardware Included
Yes
Product Attributes - Belt Included
Yes
Product Attributes - Coating Type
Powdercoated
Product Attributes - Finish
Gloss
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Holley
StreetFX SKU hly20-370BK
SFX Item ID 4782821
Supplier Item Code 4782821
Manufacturer SKU 20-370BK
Manufacturer UPC 90127865255
Alternative References HOL20-370BK, SD-7

Compatibility

Application Data
  • UniversalNo
    MakeFORD
    Beginning Year1963
    Ending Year1969
    Engine TypeV8
    Engine FamilyFord small block Windsor
    Engine Size4.7L/289
  • UniversalNo
    MakeFORD
    Beginning Year1968
    Ending Year2001
    Engine TypeV8
    Engine FamilyFord small block Windsor
    Engine Size5.0L/302
  • UniversalNo
    MakeFORD
    Beginning Year1969
    Ending Year1971
    Engine TypeV8
    Engine FamilyFORD BOSS 302 V8 GAS
    Engine Size5.0L/302
  • UniversalNo
    MakeFORD
    Beginning Year1969
    Ending Year1997
    Engine TypeV8
    Engine FamilyFord small block Windsor
    Engine Size5.8L/351

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