We are Hyundai and Kia engine specialists — not a general rebuild shop. Every Hyundai long block we build is blueprinted to tighter tolerances than the factory used, specifically to eliminate the rod-bearing and oil-consumption failures that took out your original engine.
Not every rebuilt Hyundai engine is built to the same standard. Most shops simply replace worn parts and reassemble to factory spec — the same specification that allowed the original engine to fail. As Hyundai and Kia engine specialists we go further. Every mating surface, bearing clearance, and rotating assembly is measured and corrected to tighter tolerances than the factory used, specifically targeting the root causes of Theta II and Nu failures: rod bearing wear and excessive oil consumption.
Every block we build goes through crankshaft line honing, surface decking with an RA test for zero leak points, and dynamic balancing before it's approved to ship or install.
We stock long blocks for these Hyundai models: Sonata, Santa Fe, Elantra, and Tucson, covering engine families 2.4L Theta II (G4KE/G4KJ), 2.0L Theta II Turbo (G4KH), and 2.0L Nu (G4NA/G4NB).
Not sure which engine your vehicle needs? Use our Instant Fitment Finder or submit your VIN and our team will confirm the exact match before you order.
Check My FitmentCheck current availability on rebuilt Hyundai long blocks or ask our team any technical question about the process.
