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HEMI. It is a name that is synonymous with Power, Reliability, and Durability. Unfortunately we know that that isn’t true with the latest engine that bears the Hemi moniker. Valve seats drop out, factory valve springs break, connecting rods fly apart. It is an engine design that is plagued with failure. That is until now!

Promar has taken the venerable modern HEMI engine and made necessary engineering changes to increase its strength for the long haul. With our innovative machining processes, superb replacement parts, and attention to detail, we have improved the original design and made a replacement engine that you are proud to have in the engine bay of your Truck or Car.

Contact us today for the Hemi replacement your Chrysler/Dodge/Jeep deserves.

We also offer many performance enhancing options over a stock replacement engine.

  • CNC Ported Heads
  • ARP Hardware
  • Forged Rotating Assemblies
  • Stroker Kits
  • Performance Cams and Valvetrain