DIY Engine Conversion Kits: HEMI Power in Your Jeep JK

Massive horsepower and torque in a street-legal, emissions-compliant engine built with OEM Chrysler parts. You didn’t think it was possible, but you’re going to love your Jeep even more.

If you want Hemi power under the hood of your JK, our DIY conversion kits are your easiest and best solution.

Our shop has been perfecting the art of Hemi conversion kits for Jeeps since 2004. We’ve pioneered with innovations and smart features to bring you powerful, reliable, and easy-to-install conversion kits that fit any JK.

Get everything you need for a DIY engine swap and enjoy turning your JK into a Hemi-powered beast. We’re the only shop building Hemi kits that pass California emissions — so if you want to get on the road with a truck motor in your JK, this is your chance.

Why choose Hemi conversion kits from the Jeep Speed Shop?

Get your conversion kit from the shop that professionals turn to for ensuring emissions compliant V8 engine swaps. When you install a Jeep Speed Shop kit in your JK, you get a perfect fit and the best performance possible. All in an OEM equipment package and customized for your JK.

We build the best Hemi conversion kits, and you get the best value for your money.

  • New, top-of-the-line parts — we use 100% NEW parts, including mostly OEM Chrysler parts
  • Emissions compliant in all states — our kits meet the strict California emissions standards
  • Custom programmed Hemi computer — specially designed just for the JK
  • Production line engine and transmission — new from Chrysler
  • Made in the USA parts — from the radiator that handles all weather to the engine-driven cooling fan built right in our shop
  • OEM Performance and style — a custom wire harness for any Hemi engine swap

Our Jeep JK Hemi Conversion Kits

Choose from all Gen III Hemi truck motors including manual and automatic transmission, VVT and non-VVT engines, with or without a supercharger.

Jeep Speed Shop sells DIY conversion kits for 5.7L, 6.1L, and 6.4Lthe following Hemi motors:

  • 8L
  • 7L
  • 0L
  • 1L
  • 2L
  • 4L

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