Ilmor NT1

Ilmor NT1
An NT1 pictured at Young's Motorsports in August 2020
Overview
ManufacturerIlmor
Production2018–present
Layout
ConfigurationV8 engine, 90° cylinder angle
Displacement6.2 L (6,162 cc)
Cylinder bore106.3 mm (4.2 in)
Piston stroke91.44 mm (4 in)
Cylinder block materialCompacted graphite iron
Cylinder head materialAluminum alloy
Valvetrain16-valve, OHV, two-valves per cylinder
Combustion
Fuel systemElectronic Port Fuel Injection (EFI)
ManagementHolley 554-132
Fuel typeE15 Ethanol provided by Sunoco (2018–present)
Oil systemDry sump
Output
Power output650-700+ hp (410-708 kW) @ 9,000 rpm (depending on displacement.)
Torque outputApprox. 500 lb⋅ft (678 N⋅m) @ 7,500 rpm
Dimensions
Dry weight450 lb (204 kg)

The Ilmor NT1 engine is a 5.87-liter, naturally aspirated, V8 racing engine, developed and produced by Ilmor for competition in the NASCAR Craftsman Truck Series in 2018 it is currently used in the series as a spec engine used by all teams.

Specifications

Applications

References

  1. ↑ "Ram returns to NASCAR with Ilmor power". Race Engine Technology. Retrieved August 4, 2026.
  2. ↑ "Ilmor NT1 engine powers Gander RV & Outdoors Truck Series". NASCAR. Retrieved August 4, 2026.
  3. ↑ "HOLLEY EFI MAKES ARCA DEBUT". Holley. Retrieved August 4, 2026.
  4. ↑ "HOLLEY EFI, ALL-NEW NT1 DOMINATE 2018 NASCAR TRUCK SEASON". Holley. Retrieved August 4, 2026.
  5. ↑ "2026 ARCA Rule Book" (PDF). ARCA. Retrieved August 4, 2026.
  6. ↑ "Sunoco Fueled for 15: Celebrating 15 Years of Fueling Victories". NASCAR. Retrieved August 4, 2026.
  7. ↑ "Truck series teams weighing pros and cons of spec engines vs. OEMs". ESPN. Retrieved August 4, 2026.
  8. ↑ "Toyota NASCAR Truck Team Forced To Adopt Spec Engine After Rules Update". Autoweek. Retrieved August 4, 2026.
  9. ↑ "Grassroots Racing and the Future of Motorsports". Engine Builder Magazine. Retrieved August 4, 2026.
  10. ↑ "NASCAR Trucks: Spec Engines Overpowering OEM Options; Ilmor Short On Inventory". Autoweek. Retrieved August 4, 2026.