KORE591998LB 12V Kore Series Long Block (Std/Auto)

Features:

• Complete remanufactured long block assembly
• Machined and bored on Rottler equipment
• Tighter tolerances than OEM specifications
• New pistons, rings, bearings, and rods
• Reinforced internals for smoother running engine
• Includes cylinder head and top end gasket kit
• Rockers and pushrods preset to factory specs
• Built in ISO 9001:2015 certified facility
• 5 year / 100,000 mile standard warranty
• For 1998 Storm Block applications only

Give Your 12 Valve The Fresh Start It Deserves

When a 1998 12 valve Cummins finally needs a rebuild, starting fresh with a remanufactured long block is one of the most reliable ways to get your truck back on the road with confidence. The DFC Diesel Kore Series Long Block is built specifically for the 1998 model year Storm Block, and DFC's engine builders remanufacture every unit to meet strict tolerances that actually exceed factory specifications. Using Rottler machining equipment, DFC brings each long block back to tighter, more precise dimensions than what left the factory originally, which translates to a smoother running engine with less noise and better overall balance. Inside, you're getting new pistons, rings, bearings, and rods, along with reinforced internals designed to hold up to real work rather than just meet a minimum spec. The kit arrives as a complete short block assembly with the cylinder head already included, along with a top end gasket kit and rockers and pushrods preset to factory specifications, so your installer isn't left tracking down extra pieces mid-build. Whether your original block finally gave out from age or you're restoring a tired 12 valve back to dependable daily service, this long block gives you a genuine fresh foundation rather than a patched-together repair. For an engine platform this respected among diesel owners, that fresh start matters.

Precision Remanufacturing Built Around 1998 Storm Block Specifications

The DFC Diesel KORE591998LB is a remanufactured long block engineered specifically for the 1998 Dodge Ram 2500 and 3500 equipped with the 5.9L Cummins 12 valve engine using the Storm Block casting. Every long block is remanufactured using Rottler machining equipment, allowing DFC to hold tolerances tighter than original OEM specifications during the rebuild process. The assembly is rebuilt using near identical weight piston and connecting rod assemblies, which helps maintain proper engine balance and reduces vibration and noise compared to mismatched aftermarket internals. New components include pistons, rings, bearings, and rods, and the long block ships as a complete short block assembly including the cylinder head, all necessary gaskets, and a top end gasket kit for completing the install, with rockers and pushrods already preset to factory specifications. Every engine is manufactured in an ISO 9001:2015 certified facility, reflecting a consistent quality management process across the build. DFC notes that specific component brands used during remanufacturing may vary based on parts availability at the time of each build, since components are sourced from multiple trusted brands at DFC's discretion and cannot be specially requested. This long block is backed by a manufacturer warranty of 5 years or 100,000 miles for standard use, or 1 year and 19,000 miles for commercial applications.

Fitment: 1998 Dodge RAM 2500/3500 5.9L Cummins (24V Storm Block)

Notes:

• This engine is specifically for 1998 models with the Storm Block only
• Component brands may vary by build based on parts availability, cannot be specially requested
• $500 shipping charge/$2,800 core charge 
• Engine shipping crate must be returned with core engine for full core credit
• Manufacturer warranty: 5 year/100,000 miles standard, 1 year/19,000 miles commercial
• Oil cooler replacement highly recommended, mandatory if prior engine had a bearing failure
• Injector replacement highly recommended on higher mileage or contaminated fuel engines
• Turbocharger replacement recommended over 125K miles, mandatory if shaft play present or engine was dusted
• Evans Waterless Coolant recommended upgrade for corrosion and boilover prevention
• This product cannot be shipped to California

Install Instructions