Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Engines and Components› Belts and Pulleys
Holley
BBC Accessory Drive Sys. Mid Mount - Black
SKU: H00E 20-242BK
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: 20-242BK
Holley's Mid-Mount accessory drives are now available for your big block Chevrolet engines! The revolutionary system does what no other accessory bracket system has done… GETS RID OF THE BRACKETS!
Features:
- The Mid-Mount complete accessory system has all accessories pulled in tighter than other accessory drives.
- Bracketless accessory mounting with ultra-easy assembly
- O-ring seal to engine
- Hidden thermostat bypass and heater hose ports with NPT line adapters included
- LT1 style premium alternator
- LT1 style water pump design
- Compact SD7 A/C compressor with line adapter included
- Type II power steering pump with baffled reservoir
- P/S adapter hardline to AN -6 adapter included
- OE pulley ratios for optimal accessory performance
- Available in natural and black finishes
- Billet alternator, tensioner, and compressor pulley covers
Big Block Chevy Mid-Mount Complete Accessory System- Black Finish
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
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 20-242BK |
| Weight | 60.1 lb |
Videos
We’re here — turning wrenches, just like you.
Call us, follow along, or come say hi.
Buy with Confidence
Returns & Fitment
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.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy