Engines and Components› Belts and Pulleys
Holley
COMP MID-MT SYSTEM, LS WP ALT-NATURAL
SKU: H00E 20-187
Moderate — 2–4 hours
Description
Part #: 20-187
Holley's Mid-Mount Accessory Drive System is now offered for the serious racer in mind. If you need a front drive system for your LS engine racecar, they are now available without air conditioning and power steering depending upon your needs!
Features:
- Bracketless accessory mounting with ultra-easy assembly
- Bottom outlet heater hose options for swap application clearance
- LT1 style premium 150 amp alternator
- LT1 style water pump cartridge design
- Steam tube input port
- Shortened top outlet nipple for more radiator hose turns and routing room
- OE pulley ratios for optimal accessory performance
- No adapters/spacers required!
- Works with all common aftermarket and factory Throttle bodies and intakes.
- Works with VVT applications
- Works with Hooker turbo manifolds.
- Fits ALL LS engines except with dry sump and/or supercharger.
LS Engine Drive includes Alternator, Tensioner, Crank Damper, Belt, & Pulleys
Fitment
Fitment Guaranteed
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on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Holley |
| Part Number | H00E 20-187 |
| Weight | 46.25 lb |
Videos
Holley Mid-Mount C10 LS Swap Front Runner Kit | Why We Use It Ep. 1
Budget Holley Mid Mount Kit | LS V8 Accessory Drive
Stacey David's GearZ Holley Mid-Mount Accessory Drive System for LS Engines
Holley Premium LS/LT Mid-Mount Accessory Systems
HOW TO INSTALL HOLLEY MID MOUNT ACCESSORIES
Holley LS Front Runner Kit | Project Last Chance C10
Budget Holley Accessories? Pro Touring V8 Triumph Build – LS Powered Project GT6 – Ep26
Holley LSA Accessory Drive Kit (Complete Installation Video)
Holley Mid-Mount Accessory Drive FB Live Video
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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