Sale

Engines and Components› Belts and Pulleys

Holley

COMP-MID-MT ACC DRIVE SYSTEM, BBC-NATURA

$2,306.95 $2,099.95 Save $207.00

SKU: H00E 20-242

In Stock
In Stock
Ships by Sep 14
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

Holley's Mid-Mount accessory drive system for Big Block Chevrolet engines features a 'bracketless' design, integrating accessories directly onto the water pump for a clean look and improved engine visibility. This comprehensive system includes a premium LT1-style alternator with 6-phase technology (C7 Corvette-inspired), an LT1-style water pump, a compact SD7 A/C compressor, and a Type II power steering pump with a baffled reservoir. The water pump offers hidden thermostat bypass and optional side/top heater ports with NPT adapters. The kit comes complete with all necessary accessories, pulleys, belt, A/C line adapter, heater hose adapters, power steering to -6 AN hardline, and an alternator plug/harness. Designed for easy assembly, it includes color graphical instructions. Available in natural and black finishes, featuring billet alternator, tensioner, and compressor pulley covers.
Show original supplier description

Part #: 20-242

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- Natural 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

BrandHolley
Part NumberH00E 20-242
Weight48.9 lb

Videos

Small and Big Block Chevy Mid-Mount Accessory Drive

Small and Big Block Chevy Mid-Mount Accessory Drive

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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 Policy

Shipping

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