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Bills Hot Rod Co 1100 Series LS Swap A/C Compressor Bracket
Bills Hot Rod Co 1100 Series LS Swap A/C Compressor Bracket

Bills Hot Rod Co 1100 Series LS Swap A/C Compressor Bracket

Chevy LS V8

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Bills Hot Rod Co 1100 Series LS Swap A/C Compressor Bracket
Bills Hot Rod Co 1100 Series LS Swap A/C Compressor Bracket
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Part # 91668042
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.


MFG. Part #:
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Sold in Quantity:
Crankshaft Pulley Included:
Water Pump Included:
Power Steering Pump Reservoir Included:
Alternator Included:
A/C Compressor Included:
A/C Compressor Type:
Sanden SD-508
A/C Pulley Grooves:
6-groove, Serpentine
A/C Bracket Included:
A/C Bracket Material:
Tensioner Included:
Tensioner Cover Included:
Hardware Included:


 Since 1990, Bill's Hot Rod Co. has had one goal in mind; to design alternator, air conditioner and power steering brackets that fit and are easy to use, as well as affordable and stylish. This 1100 Series side-mount accessory drive is a solution to the challenges encountered when swapping a GM LS engine into a muscle car, pickup truck, or street rod. Factory accessories on most GM LS engines are mounted low and tight to the engine, making it difficult to swap into older vehicle frames with large crossmembers and steering boxes. These 1100 Series front drive bracket kits relocate the alternator, power steering pump and A/C compressor to a higher, outside position on the engine but well below the hood line of most vehicles. The layout of this bracket is similar to the Corvette design.

This A/C compressor bracket kit is designed to mount aftermarket Sanden SD-508 compressors onto Gen III/IV GM LS engines (non-supercharged). It works with LS1/LS2/LS6 wide pulley water pump (GM 19256263) and GM truck water pump (GM 19207665). This kit is intended for use with brackets 91668040 or 91668041. Brackets come completely assembled with all stainless steel bolts and washers, illustrated instruction sheet, and belt size recommendations.

  • Bracket fits both Gen III/IV LS series cylinder heads
  • Repositions A/C compressor away from frame rail
  • Utilizes commonly available and affordable Sanden 508 compressors
  • Ideal for crate engines or take-out junkyard motors
  • Brackets come completely assembled with stainless hardware
  • Bolts on - no drilling or tapping necessary
  • Made from mild steel plate for strength and durability
  • Choose between black powdercoated, chrome or raw steel finish

91668042 Instructions (PDF)


This bracket kit has the same crankshaft pulley drive depth/offset as the Corvette (non-supercharged), CTS-V LS6/LS2, and Pontiac G8 engines (which is 1-1/2" deep from the front of the pulley face to the crank bolt seat). Available spacer kits (sold separately) allow easy fitment to other GM drive depth/offsets. If using the Camaro/Firebird LS1 or Pontiac GTO depth/offset (2-1/4" deep), you'll need additional spacer kit 91668043. If using the 2010-15 Camaro (non-supercharged) or GM truck depth/offest (3" deep), you'll need additional spacer kit 91668044.

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

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