Chevrolet Performance Dirt Track Crate Engines


Karl Kustoms and Karl Chevrolet have been involved with the implementation of 602 and 604 crate engines in IMCA racing since the beginning.  Over the years we have developed the best common practices with dyno procedures as well as bolt on parts to get the most out of these engines.  Whether you're looking to get your first crate engine and want to ensure you're getting all the right components to get it in the car or replacing an older one we can help you.


We are also a approved IMCA Repair Center.  If you need your IMCA Sealed Crate Engine repaired please give our team a call at 855-806-1147 and we would be happy to help you out.


To ensure your engine is ready to drop in when you receive it and working harmoniously with all of your accessories we can dyno your crate engine with your components.  If there's issues with any components we can diagnose it on the dyno so you aren't wasting valuable time on the track troubleshooting any problem areas.


Dyno Procedure:

Dyno service for Chevrolet Performance Racing Crate Engines provided by Karl Kustoms and available for the CT350 and CT400 engines, commonly referred to as the "602" and "604" respectively.

  • Engine break-in performed in controlled environment using proprietary dyno software
  • Champion brand break-in oil used exclusively
  • Valve lash is set before and after dyno service
  • Timing mark on balancer is set to true TDC (Top Dead Center)
  • Ignition timing is optimized for peak performance
  • Oiling system is inspected for proper lubrication

Engines are run on the dyno with any additional components purchased, or if the customer wants to ship their carburetor and front-drive accessories, we can run the engine with those items installed for optimal performance with the customer's existing components.


If you're looking to put yourself in victory lane with a expert team in your corner give us a call today at 855-806-1147 to learn more.

2020 10Oct_Engine Accessories Graphic_604 Crate Engine

602 & 604 Crate Engines

  • Sale!

    Chevrolet Performance 602 Circle Track Crate Engine

    $5,199.93 $4,094.95
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  • Sale!

    Chevrolet Performance 604 Circle Track Crate Engine

    $8,653.11 $6,814.32
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  • CT350 602 Chevy Sealed Crate Engine Dyno-Tested

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  • CT400 604 Chevy Sealed Crate Engine Dyno Tested

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  • Dressed CT350 602 Chevy Sealed Crate Engine Dyno-Tested

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  • Dressed CT400 604 Chevy Sealed Crate Engine Dyno-Tested

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Common Accessories

  • Jones Racing 1020-S Serpentine Drive Pulley Kit SBC Chevy V8

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  • Kevko K-139 Aluminum EVAC Tank Kit 602 / 604 Crate Engines IMCA

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  • Sale!

    MSD 64253 Black Digital 6AL Ignition Control

    $317.00 $284.95
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  • Sale!

    MSD 85555 Black Pro-Billet Distributor, Chevy V8

    $340.00 $305.95
    Add to cart
  • Sale!

    MSD 8727CT Digital Soft Touch HEI Rev Limiter, Circle Track

    $215.00 $192.95
    Add to cart
  • Sweet Mfg 305-85841 Bellhousing-Mount Tandem Power Steering & Fuel Pump Assembly

    Add to cart