Holley's Mid-Mount complete accessory system pulls all accessories in tighter than other drives using a bracketless design where components bolt directly to the water pump for a clean, integrated look and excellent engine visibility. It includes a premium 6-phase alternator, LT1-style water pump, SD7 A/C compressor, and a Type II power steering pump with baffled reservoir — essentially everything needed for the swap, including pulleys, belt, heater hose adapters, P/S hardline, and alternator harness.
Specifications:
- Application: GM Gen V LT
- Engine: GM Gen V LT1
- Category: Belts and Cooling
- A/C Compressor Type: SD7 (included)
- Alternator Included: Yes, 150A Output
- Damper Included: Yes, SFI Certified
- Water Pump, Water Neck & Thermostat Included: Yes
- Power Steering Pump, Reservoir, Hardline & Pulley Included: Yes
- Oil System Type: Wet Sump
- Inlet Size: 35.4mm/1.4"
- Finish: Polished
- Material: Cast Aluminum
- Pulley Style: Serpentine
- Product Type: Accessory Drive Kits
- Warning: California Proposition 65
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 20-200P
Fits all wet-sump LT V6 & V8 engines except LT2 and any supercharged variant; also fits dry-sump LT engines converted to wet sump (except LT2). The included power steering pump can be used with Hydroboost systems — refer to the flow specs on part number 198-101.
FAQ
Does this system fit the LT2 engine?
No, it is not compatible with the LT2 or any supercharged LT variant.
What is the alternator output?
150 amps, using 6-phase technology as found on the C7 Corvette.
Is the damper SFI certified?
Yes, it includes an SFI-certified damper with a hard-anodized billet crank pulley.
What oil system type does this fit?
Wet sump LT engines (dry-sump LT engines converted to wet sump also fit, except LT2).

