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$1,777.95
$1,599.95
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black

Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black

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Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
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Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
Holley 20-242BK BBC Mid-Mount Complete Accessory System, Black
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We estimate this item will ship on or before December 30th.
Part # 42520-242BK
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$1,777.95
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 10 business days for Holley to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

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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 (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. 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.

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

Installation Instructions

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

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