NRE Twin-Turbo LS 427


*Photos may show optional equipment.

1600 hp on Race Fuel / 1225 hp on Pump Gas

In my opinion, there is no Twin-Turbo engine combination on the market that can compete with this engine on a scale of quality, value, and completeness.This is a real street Turbo motor that was designed to cruise at 2000 on the freeway, drive 400 miles in a day, and make 1500hp without breaking a sweat. While still sounding like a Hot Rod. We’ve went to great lengths in development to bring you a cost effective turn-key solution. If you’re looking for a high quality affordable Twin-Turbo engine, this is it.

  • BLOCK: Dart LS Next 4.125 bore 9.240 deck Steel Splayed Caps 6 head bolts per cylinder
  • CRANKSHAFT: Dart Billet 4.0 Stroke
  • CONNECTING RODS: Boostline 6.125 4340 forged I beams
  • PISTONS: Custom JE 2618 forging 9 to 1 compression
  • VALVE-TRAIN:  Custom Hydraulic roller camshaft, GM lifters, Comp Cams Shaft rocker system, Manton Series 5 Pushrods, Cloyes timing chain
  • OIL SYSTEM: Hi Volume Oil pump, Moroso 7 quart road race oil pan with trap doors.
  • ROCKER ARMS: Bushed LS3
  • OIL SYSTEM: Holley 302-3 Oil Pan
  • CYL HEADS: NRE AFR 260CC Six Bolt Fully CNC Ported LS3 Heads
  • INTAKE MANIFOLD: Shauns full billet intake with 90 mm Drive by Wire TB
  • INJECTORS: Custom flow matched 1200 cc
  • VALVE COVERS: NRE Billet fully CNC machined
  • FUEL MANAGEMENT: Holley Terminator with full harness and sensors
  • IGNITION: 60-2 Tooth Crank trigger
  • EXHAUST: NRE Built 304 Stainless Turbo manifolds with waste-gate attachments
  • TURBOCHARGERS: NRE 72mm Mirror Image Generation 2, Billet wheel
  • WASTE-GATES: Precision 46mm V-band

"On the freeway I leaned into it pretty hard and it felt like an elephant pushing on my back. Then Nelson pulled up next to us and motioned to turn up the boost. We did and the car laid tracks at 70 mph while still pulling like an atlas rocket. I can only imagine what it's like at full song."  

- Rob Kinnan, Editor of Hot Rod Magazine


Daily Driver Series
Designed for the person who wants to drive their car daily. Experience a killer V8 sound. NRE Daily Drivers are brutally strong power plants.

- Maximum reliability
- Enormous amount of torque & hp
- Drives anywhere on 91 octane gas
Hot Rod Series
Best compromise between power and reliability. This engine setup has a very hollow and nasty sound, but the valve train acceleration is reasonable and soft.

- Larger power band
- More torque per cubic inch
- Drives anywhere on 91 octane gas
Pro-Touring Series
Power and performance for cars intended to be driven. From street, track, drag strip, or through cones at an auto-cross, get full street car manners with massive power.

- Smooth power and performance
- High quality components
- Runs on pump or race gas.
Warrior Series
Over the years we have developed some of the meanest race combo’s in the world and these are pure race engines unequaled in power and reliability.

- Patented Race Technology
- Season after season of engine reliability
- May require high-octane race fuel

STEP 1: Select a Motor Series

Every motor is built to the individuals needs. First, SELECT A MOTOR SERIES to let us know about your dream motor.

STEP 2: Devil's in the Details 

Your motor setup and details are made-to-order and engineered specifically to fit your ride. Tom Nelson and NRE engine builders will work with you to concept your unique vision.

Options & Upgrades

Wether you have specific parts or a style in-mind, we can help show you options and upgrades that will push you ahead of the competition. 

  • NRE Turbocharger sizes
  • NRE Alien Intake
  • Fuel Management Systems
  • Ignition upgrades
TT-572-BBC-alien-polished-finish.jpg Polished
TT-572-BBC-alien-black-finish.jpg Vader Black

Custom Finishes

Polished, Vader Black + More Custom Color Options...

STEP 3: Start Your Engine

NRE will supply a detailed price quote for your approval, at that time, a deposit is required to start. 


Are you ready to be powered by NRE?