Holley A/C Compressor Bracket
Holley A/C Compressor Brackets: Purpose-Built for LS Swaps
When you're deep into a GM LS engine swap — whether it's a muscle car, truck, hot rod, or street rod build — one of the most persistent headaches is sorting out the accessory drive. Air conditioning is often the last thing tackled, and the wrong bracket setup can mean frame rail notching, clearance nightmares, and belt misalignment. That's exactly the problem that Holley set out to solve with their dedicated line of A/C compressor brackets, engineered specifically for the LS swap community.
High-Mount and Low-Mount Solutions
Holley offers simple, clean, cost-effective solutions that address the accessory drive challenges encountered when swapping a GM LS engine into a muscle car, truck, hot rod, or other vehicle. Their bracket lineup comes in two main configurations to match different build goals:
- High-Mount Brackets: These kits move the compressor up high and away from the frame rail — no more notching required. They position the compressor high above the cross-member but below the hood line for easy installation and great looks.
- Low-Mount Brackets: Holley's Low Mount Accessory Drive Brackets have components tucked in tighter to the block and mounted lower for a more attractive and compact package — ideal for LS engine swaps with limited space or where a low, more attractive appearance is desired.
Universal Fitment Across Common LS Engines
Holley's universal bracket design fits virtually all common LS engines regardless of water pump and harmonic balancer offsets, reducing cost and complexity compared to competitive products. Simple, dedicated installation kits allow easy fitment to Corvette, F-Body, or Truck drive offsets, and the brackets utilize commonly available and affordable GM A/C compressors.
Compressor compatibility is a key strength of the lineup. High-mount brackets are available in versions supporting the classic GM R4 compressor as well as the popular Sanden SD508 and SD7 units. Low-mount A/C brackets and systems require the use of the Sanden SD7 compressor. This range of options lets builders choose the compressor that best fits their budget and parts availability.
Die-Cast Construction and Finish Options
These brackets feature factory-quality natural finish die casting for clean looks and durability, and can be polished, coated, painted, or plated. They were designed to deliver a factory-style appearance, correct belt alignment, and factory stability. Factory-spec flanged head hardware is included to match your factory LS engine hardware. Black powder-coat finish variants are also available for builders who want an aggressive, stealthy underhood look.
Modular Installation System
Holley's kits supply the required brackets and hardware needed for installation, but allow you to choose the source for supplemental accessories and components that are often already on the donor engine or host vehicle — whether sourcing from the salvage yard, the local auto parts store, your GM parts dealer, or Holley, you pick the accessories that match your needs and budget.
Low-mount bracket designs even skip the installation kit requirement entirely, featuring multiple holes in the bracket for standard, middle, and long spacing — simplifying the install process further. In complete drive kit offerings, the included compressors, pulleys, and tensioner are manufactured by OE part suppliers, many of which are on production cars today.
Who These Brackets Are For
Holley's A/C compressor brackets are ideal for crate engine builds, take-out motor transplants, and seasoned engine builders looking for a clean, bolt-on solution. From propelling the LS-swap trend to continuously innovating late-model and vintage vehicle performance, Holley's commitment to its customers and their cars is at the core of everything they do. If your next project involves keeping the cabin cool without sacrificing underhood aesthetics or clearance, Holley has a bracket solution designed to get you there.