CT350 Crate Engine – Chevy Performance 602 IMCA-Sealed Crate Engine Dyno Tested (D1)


  • Dyno-verified Horsepower and Torque
  • Lash and Timing are Tuned
  • Camshaft and Piston Rings are Professionally Broken-In
  • Sparkplugs Properly Gapped and Installed

Shipping is free, but there is a delivery fee for residential addresses.

SKU: 19434602D1 Category:

CT350 602 Crate Engine

The CT350 circle track crate engine from Chevrolet Performance delivers competitive and durable power at an economical price – and Karl Kustoms offers them as a dyno-verified package that is ready to race! Designed for circle track’s weekend warriors, this bullet-proof 350-cubic-inch IMCA-sealed racing crate engine (often referred to as the “602 crate”) is a tough combination of power and reliability. It makes 350-horsepower and it fits almost any racing budget.

Based on the popular 350 HO engine, the CT350 includes a brand-new four-bolt main block, 9:1 hypereutectic pistons, cast-iron crankshaft, and GM iron Vortec cylinder heads. The 350/350 Factory Stock version features a high-rise dual-plane intake manifold, 8-quart single kick-out circle track oil pan, valve cover kit with breather tube and breather, and special “kool nut” rocker arm nut design. The 350 HO’s unique dual-pattern cam, based on the one found in the 1965 – 67 Corvette 327 engines, is included too. This cam provides more lift and duration to clear the engine exhaust quickly, moving more air to provide excellent mid and high-range power, where you need it on the track.

Offered as a complete package, the CT350 includes everything from the oil pan to the intake manifold, including an HEI distributor. A proven racing crate engine it has the horsepower you need for a competitive racecar. Getting to the winner’s circle, however, is your job! Features:

  • Dyno-verified horsepower and torque
  • Camshaft and piston rings are broken in using a SuperFlow dyno system
  • Lash and timing are individually tuned
  • Sparkplugs properly gapped and installed
  • Comes professionally sealed with IMCA seals
  • Popular in Hobby Stock, Street Stock, Sport Modified, and Truck classes*

*Check track/series rules for approval qualifications.

Important Message: This item is made to order. It will be shipped from our warehouse when it is produced.

Replaces old P/N 88869602D1 and 19431602D1 and 19432602D1.

What’s Included

  • Fully GM assembled Long Block
  • Steel Valve Covers with Chevy Bowtie Logo Breathers
  • High Rise Aluminum Intake Manifold
  • HEI Distributor
  • 8″ Harmonic Balancer
  • Oil Pump, Pick-up, and 8-Quart Oil Pan
  • Front Timing Cover
  • Professionally installed IMCA seals
  • Properly gapped NGK spark plugs
  • Dyno Sheet of your Engine

Important Notes

  • Requires the addition of a carburetor, starter, water pump, and plug wires (not included). See 19432602D1 for a “dressed” version of this engine.
  • Requires an externally balanced flywheel (not included).
  • The 8-quart circle track oil pan is 8 inches deep at the sump. It will clear most GM rear-steer chassis with the stock engine location.
  • For Circle Track Racing only – not intended for street use.
  • Some parts are not legal for use in California or other states with similar laws/regulations.
  • Replaces old P/N 88869602D1, 19431602D1, 19432602D1
  • Weight 451 lbs
Weight 451 lbs

19370602D1, 19431602D1, 19432602D1


CT350 602 Chevy Sealed Crate Tech Specs

  • Bore x Stroke: 4.00″ x 3.48″
  • P/N 19433602D1
  • Compression Ratio: 9.1:1
  • 92 octane recommended fuel
  • Cast iron, 4-bolt main caps
  • Cam Lift: .435″ intake / .460″ exhaust
  • Cam Duration @ .50″: 212° intake / 222° exhaust
  • Lobe Separation: 112.5°
  • 1.94″ intake / 1.50″ exhaust valves
  • Stamped Steel, 1.5:1 ratio rocker arms
  • Weight: 451 lbs. as delivered


Click here to download installation information.

Chevrolet Performance Racing Crate Engines are excluded from limited warranty.


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Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

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