Key Specs

MFG. Part #21-5
BrandHolley
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Holley 21-5 Details

GM has updated its V8 performance engines and launched the new Gen V LT1 direct injected engine as a replacement for the very popular LS series of engines. This new accessory Drive bracket installation kit allows the use of our popular And reliable Holley LS accessory Drive bracket systems to be installed on the new LT1 engine. This Drive system has incorporated an upgrade to the conventional looking and central located LS Water Pumps which works in conjunction with an OEM LT1 truck harmonic balancer. This application fits all LT1 style engines (except the dry sump and supercharged applications).This new installation kit includes spacers for the LS style brackets, Water Pumps spacers, a solenoid re-clocking retainer ring, re-routed front harness, and all hardware. This new installation kit works with existing high mount LS accessory Drive brackets, accessories, LS Camaro style Water Pumps, and LT1 truck harmonic balancer.These new kits allow you to choose the source for supplemental accessories and components that are often already on the donor engine or host vehicle. Whether sourcing from the salvage yard, the local auto parts store, your GM parts dealer, or Holley, you pick the accessories that match your needs and budget!

Features:

  • Mounts any of Holley’s popular High Mount accessory Drive brackets to LT engines
  • Utilizes conventional LS center Water Pumps (Holley P/N 22-100 or similar)
  • No engine modification required - completely bolt-on
  • Hides temperature sensor and harness connector from sight
  • Works with LT Truck Harmonic Balancer (often already on donor engine)
  • Cost Effective and Proven Solution
  • Utilizes conventional single sided Belt
  • Easy Way to Add Power Steering w/ Your Gen-V LT Engine Swap!
  • Holley 21-5 Specifications

    KEY SPECS
    MFG. Part #21-5
    BrandHolley
    GENERAL
    Sold in QuantityKit
    GTIN Code090127008737

    Questions & Answers

    Customer Impersonation Script