AC Bracket System Kit GM LS Engines

The Holley AC Bracket System Kit for GM LS Engines is a complete air conditioning compressor mounting solution designed for LS-series engine swaps and custom automotive builds. This kit provides everything necessary to integrate an SD508-style air conditioning compressor into LS engine platforms, including mounting brackets, idler pulleys, and belt routing components in durable aluminum construction with a natural finish. For builders converting classic muscle cars, street rods, or performance vehicles to LS power, this bracket system eliminates the guesswork of custom fabrication while ensuring proper compressor alignment and drive belt tension.

The kit is engineered for passenger-side mounting, the standard location on most LS engine installations. Aluminum construction keeps weight minimal—critical for performance-oriented builds where every pound matters—while resisting corrosion better than steel in engine bay environments. The bracket assembly accommodates the SD508 compressor family, one of the most common and affordable air conditioning units available in the aftermarket, making this system both cost-effective and practical. Proper AC installation in an engine swap prevents underhood heat buildup and maintains cabin comfort during extended driving, essential considerations often overlooked during initial build planning.

LS engine swaps span everything from mild street cruisers to high-output performance vehicles, and climate control functionality impacts both drivability and resale value. This Holley bracket system is engineered to work within the tight packaging constraints of LS engine bays while maintaining correct belt angles and compressor geometry. Whether you're building a first-gen Camaro restomod, a hot rod with modern reliability, or a truck conversion project, a complete AC system from the outset beats retrofitting cooling capacity later. The kit's comprehensive component set—brackets, idlers, and pulleys included—means no hunting for individual pieces or compatibility mismatches during installation.