Holley's Polished Mid-Mount complete accessory system for LS engines uses a bracketless design where accessories bolt directly to the water pump for a clean, integrated look and better engine visibility. The kit includes a cast crank damper, a 150-amp LT1-style alternator, an SD7 A/C compressor, and a Type II power steering pump with baffled reservoir, in a polished finish.
Specifications:
- Accessory Drive Style: Mid-Mount
- Engine: GM Gen III/IV (LS)
- Alternator: 150 Amp (included)
- A/C Compressor: SD7 (included)
- Damper: Cast Damper (included)
- Water Pump, Water Neck & Pulley: Included
- Power Steering Pump, Hardline & Reservoir: Included
- Inlet Size: 35.4mm / 1.4"
- Finish: Polished
- Material: Cast Aluminum
- Part Number: 20-185P
Fits all wet sump LS engines except supercharged applications; also fits dry sump LS engines converted to wet sump. The power steering pump can be used with Hydroboost systems (refer to flow specs on part 198-101). An optional alternator pulley cover (97-188) is available separately.
FAQ
What's included with the Holley 20-185P Polished Mid-Mount system?
A water pump, SD7 A/C compressor, 150-amp alternator, Type II power steering pump with reservoir, and a cast crank damper, in a polished finish.
What engines does the 20-185P fit?
All wet sump GM LS engines except supercharged applications; also fits dry sump LS engines converted to wet sump.
Is an alternator pulley cover available for this kit?
Yes, an optional alternator pulley cover (part 97-188) is available separately.
