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LS Swap KitsFor Every Jeep
Years of real-world swap experience, distilled into a single parts list. Pick your Jeep, pick your tier - and start building with confidence.
The most popular Jeep for LS conversions. Compact, lightweight, and purpose-built for a clean engine swap.
View Kit OptionsRound headlights, legendary trail capability - and a powertrain that deserves a serious upgrade.
View Kit OptionsThe square-headlight generation with the same appetite for big power. LS-ready with the right foundation parts.
View Kit OptionsThe original Jeep. Proven bones that carry modern LS muscle when paired with the right conversion kit.
View Kit OptionsThe two and four-door JK platform. More engine bay, more capability - when paired with a proper swap kit.
View Kit OptionsFull-size body, full-size engine bay. Grand Wagoneers and J-trucks were practically built for the LS swap.
View Kit OptionsThese kits are engineered around the 1999 - 2007 GM Gen III LS engine family - LS1, LS6, LQ4, LQ9, and related variants. These kits are built around the customer sourcing their own engine. If you want a full powertrain swap, engine included, then see our Complete Powertrain Page Here.
The automatic kit is built around the GM 4L60E - a proven overdrive unit that pairs well with the LS and Novak's adapter systems.
Buy a 4L60E from Novak →The manual kit uses the Aisin AX15 - a tough, well-supported 5-speed that adapts cleanly to the LS with Novak's hardware.
Buy an AX15 from Novak →Need an engine too? Novak's Blueprint Motors packages pair new Blueprint 350ci and 376ci engines with our full conversion hardware - mounts, transmission, cooling, electronics - shipped crated and ready to install. Custom-quoted for your build.
The core mechanical components that make the LS engine physically fit your Jeep - mounts, adapters, and structural hardware. The correct starting point for every LS build.
A broader configured package focused on the systems that make the swap actually driveable - cooling, wiring, and drivetrain integration selected for that application. This is where most practical builds land.
The fullest configured package, adding the electronics and ancillaries chosen for a more comprehensive conversion. The answer for the builder who wants the most complete parts list in one place.
50+ Years of Jeep Drivetrain Work
Since 1967, Novak has specialized exclusively in Jeep drivetrain engineering. These kits aren't assembled from a supplier catalog - they reflect decades of hands-on swap experience across every major Jeep platform.
Real-World Tested, Not Forum Theory
Every item in the kit was selected based on what actually works in the field. If a component caused problems in practice, it's not on the list. If something is consistently required, it is. This is the list, not a guess at the list.
A Straight Answer to a Hard Question
"What do I need for an LS swap?" sends most builders into weeks of research and conflicting forum advice. Novak's kit is the direct answer from people who have done this swap - on this Jeep, with this engine - more than anyone else.
Every Part Links to Engineering Documentation
Each component in the kit has its own product page with specifications, application notes, and technical guidance. You're not just buying parts - you're buying access to the engineering knowledge behind them.
What engine do these kits support?
These kits are built around the 1999 - 2007 GM Gen III LS engine family - specifically the LS1, LS6, LQ4, and LQ9, along with closely related variants. We recommend you source your own engine for the swap; salvage yards and the used market offer these engines in abundance. The kits cover the hardware to get that engine into your Jeep correctly - mounts, adapters, cooling, wiring, and more.
What's the difference between the three tiers?
The tiers are separate configured kit options. Foundation is the mechanical core. Essential expands the swap with the systems needed to drive it. Complete is the fullest package, with the additional electronics and finishing components chosen for that application. Each vehicle page shows the exact parts assigned to each tier.
Which transmission do the kits use?
Each Jeep page offers two kit versions depending on your transmission choice. The automatic kit is built around the GM 4L60E; the manual kit around the Aisin AX15. The adapter components are different between the two, so select the option that matches your build. If you need a transmission, Novak offers both - 4L60E packages and AX15 packages - available directly from our catalog.
Can I order individual items instead of a full kit?
Yes. Every item in the kit links to its own product page where it can be purchased individually. The kit is Novak's recommended list - you're always welcome to build your own order from the same components.
Does Novak offer technical support for these conversions?
Yes. Novak provides extensive documentation on each product page and has an experienced technical staff available to help with application questions. The Novak Knowledge Base also covers these swaps in depth, including engine, transmission, and transfer case compatibility guides.