Dressed CT400 604 Chevy Sealed Crate Engine Dyno-Tested


  • MSD Distributor and Moroso Wires Installed
  • Lash and Timing are Tuned
  • Camshaft and Piston Rings are Broken-In
  • Dyno-verified Horsepower and Torque
PROMO AVAILABLE: 1 Free Case of Mobil 1 Oil with Purchase of Chevrolet Performance Crate Engine or 2 Free Cases with the Purchase of a Connect & Cruise System. See 'Promo' tab below for details.

SKU: 19370604D2 Categories: , ,

Dyno-Tested, Dressed CT400 IMCA-Sealed 604 Crate Engine

P/N 19370604D2


Maximum RPM: 5800
Engine Displacement: 350 cu. in.
Crate Engine Type: Deluxe Crate Engine
Compression Ratio: 9.6:1
Camshaft Type: Hydraulic Roller Tappet
Cylinder Head Material: Aluminum
Piston Material: Hypereutectic Aluminum
Crankshaft Material: Forged 4340 Steel
Camshaft Duration
(@ .050 in.): 208° intake / 221° exhaust
Carburetor Included: No
Intake Manifold Included: Yes
Distributor Included: Yes
MFG Part #: 19370604
Connecting Rod Material: Powdered Metal
Warranty: None
Sold in Quantity: Each
Valve Covers Included: Yes
Assembled: Yes
Cylinder Heads Included: Yes
Rear Main Seal Style: 1-piece
Oil Pan Included: Yes
Timing Cover Included: Yes
Water Pump Included: No
Harmonic Balancer Included: Yes
Flexplate Included: No
Flywheel Included: No
Air Cleaner Included: No
Spark Plugs Included: Yes
Spark Plug Wires Included: Yes
CNC-Machined Combustion
Chamber: No
Intake Style: Single Plane
Camshaft Included: Yes
Camshaft Lift (in.): .474 intake / .510 exhaust
Bore x Stroke: 4.000″ x 3.480″
CNC-Machined Runners: No


Tech Specs:

  • 4.00″ x 3.48″ bore x stroke
  • 9.6:1 compression ratio
  • 92 octane recommended fuel
  • 4-bolt main caps
  • Cam lift .474″ intake / .510″ exhaust
  • Cam duration @ .050: 208° intake / 221° exhaust
  • 112° lobe separation
  • 1.5:1 ratio aluminum roller rocker arms
  • 2.00″ intake / 1.55″ exhaust valves


  • Fully assembled long block
  • Black steel valve covers with Bowtie breathers
  • Oil pump, pick-up, 8-quart oil pan
  • Eliminator Vortec intake manifold
  • MSD Pro-Billet 85555 distributor
  • Moroso Mag-Tune sleeved , under-header wire kit(terminals installed)
  • Spark plugs
  • 8″ harmonic balancer
  • Front timing cover
  • Fuel pump block-off plate
  • Dyno sheet of your engine
  • Professionally installed IMCA seals


  1. Requires the addition of a carburetor, starter and water pump (not included).
  2. Requires an externally balanced flywheel (not included).
  3. The 8-quart Circle Track oil pan is 7 inches deep at the sump. It will clear most GM rear-steer chassis with the stock engine location.
  4. For Circle Track Racing only – not intended for street use.

Broke-in, dyno-verified HP/TQ, and IMCA-sealed for competition. Incldes distributor (installed and timed) and fitted spark plug wires.

Some parts are not legal for use in California or other states with similar laws/regulations.


Manufacturer Part Number


Click here to download installation information.

Chevrolet Performance Racing Crate Engines are excluded from limited warranty.

This product qualifies for Free Mobil 1 Oil!

November 1, 2020 through February 28, 2021 receive a Free case of Mobil 1 Oil with the purchase of a Chevrolet Performance Crate Engine and receive two Free Cases of Mobil 1 Oil with the purchase of a Connect & Cruise Package.  


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