We build race ready, reliable, high performance engines to suit your vehicle. These engines are designed to be complete for easy installation in the vehicle. A complete package includes the water pump, power steering pump, oil pump, flex plate, alternator, front drive, fuel-injection system/carburetor, motor plates, etc.

Some of the classes we already support include:

  • Trophy/Trick Trucks
  • Class 1/1500 Cars
  • Pro-2, Pro-4, & Pro-Lite Trucks
  • Pre-Runners



 We assemble GM TH400 and 4L85 transmissions that can endure the toughest of off-road racing conditions. Each component has been engineered and designed to be as strong as possible while fitting the space constraints that we are allotted. Our transmissions are fully  dressed for easy, quick installation reducing the customer labor that would be involved in swapping torque converters, extension housings, mount plates, plumbing, or other miscellaneous items.

All transmissions are dynamometer tested before shipping to the customer to verify that the transmission operates as designed. Our dynos have similar power to the vehicles that they will be operating in, unlike most electric motor driven versions, so that we can test the transmissions in very similar operating conditions that they would see on the track. They are capable of recording input shaft and output shaft speeds, oil level, cooler flow, gear position, mainline and individual gear pressures, cooler out/cooler in  pressure and temperature, converter efficiency/slippage, transmission slippage, torque converter K-Factor, and more.                    

Data/Electronics Packages



We offer a variety of MoTeC electronics packages for engine  management and data acquisition for all types of vehicles. This allows  us to accurately tune engines to optimize power and driveablilty, log  running conditions recorded from various sensors on the vehicle for  diagnostics and verification, and set user-configurable, easily  understandable alarms to warn the drivers/co-drivers of a potential  issue.

Some of the hardware that we employ include:

  • MoTeC M800 ECU’s
  • MoTeC ADL & SDL   Dashes
  • Redline Weber ECU’s

Some of the logged data we can acquire include:

  • Engine Sensors 
  • Transmission Sensors 
  • Power Distribution Information
  • Power Steering Pressure/Temperature/Steering Angle
  • Shock Temp/Pressure/Travel
  • GPS Location/Speed
  • Any other sensor installed on the vehicle



We offer a wide variety of engine machining services including:

Engine Block

  • Cylinder Boring & Honing
  • Line Boring
  • Align Honing
  • Deck Resurfacing
  • Lifter Bushing Installation
  • Cylinder Sleeve Fitting & Installation

Cylinder Head 

  • Seat & Guide Replacement/Finishing
  • Porting & Polishing
  • Valve Grinding
  • Final Assembly

CNC Machining Services

Kroyer Racing  Engines hosts two CNC 4-Axis Mills, a CNC Lathe, a Faro Arm, and  SolidWorks with CamWorks Integration Design Software for various  machining services including:

  • Part Design & Production
  • Reverse Engineering
  • Digitizing