Overview

Holley Level 3 LS Engine Swap Kits

Holley Level 3 LS swap essentials kits are the sweet spot for builders who want the swap to move forward, because this is where the "major hard parts" start lining up. Built within their five-level Swap Essentials system, Level 3 steps beyond basic mounting and adds the headers/manifolds stage using application-verified components engineered to work together so you're not guessing what clears the crossmember or fights the steering. If you want a cleaner plan with fewer surprises, these kits set you up for build success and further upgrades later if desired. Hit the fast lane of cleaner installs, fewer surprises, and swaps that feel like they were meant to be there with the Holley Level 3 LS engine swap kit best suited for your application.

More product features, items, and specifications include:

* Emphasis is on fitment, clearance, and driveline angles aimed at reducing the classic LS-swap trial-and-error that wastes time and money
* Engineered around your specific platform/transmission combo for confident fitment, clearance, and proper driveline geometry
* Level 3 kits commonly build on the early tiers by including oil pan provisions and headers/manifolds components, all selected to work together as a system
* Kits are configured by vehicle platform and transmission selection
* Emissions and legality vary by location and vehicle; verify requirements for your intended use

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