CT400 IMCA-Sealed 604 Crate Engine

400 HP @ 5500 RPM, 400 Ft lbs. Torque @ 4500 RPM, CNC Machined Block, Popular in Late Models, Modifieds, and other classes, Comes Complete Intake to Pan

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

Sku # 1219604

Mfr. Part # 19419604

Condition

New

 

Details

Info

Run up front with the 400-horsepower CT400 crate engine (often referred to as the “604 crate”) featuring Fast Burn heads from GM Performance Parts. Now, Learn About Speedway is offering this 604 crate engine as a dressed & dyno-verified package that is ready to race!

These IMCA-sealed 604 crate racing engines are based on the popular Fast Burn 385 street crate engine, but include a racing-only 8-quart circle track oil pan with dual kick-out design, along with a valve cover breather kit and special “kool nut” rocker arm design. The assembly also includes an open-plenum high-rise intake manifold and 1.5:1-ratio aluminum roller rockers.

The 604 crate engine includes a bulletproof bottom end, anchored by a forged steel crankshaft and hypereutectic pistons. The 23-degree, Fast Burn aluminum heads enable tremendous power in the small-block V-8 because of a unique chamber design that quickly and completely burns all of the air/fuel mixture – giving you maximum power. With the CT400 racing engine under the hood of your Modified or Late Model, you’ll put a “fast burn” on the competition.

• Dyno-verified horsepower and torque
• Piston rings are broken-in using a proprietary dyno program
• Lash and timing are individually tuned
• MSD Pro-Billet distributor is installed & timed
• Engine is ready to race, right out of the crate
• IMCA-sealed for equal competition
• Popular in Modified and Late Model classes*
• 400 HP @ 5500 RPM
• 400 ft. lbs. of torque @ 4500 RPM
• 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

Features

Includes:

• Fully assembled long block
• Black steel valve covers w/ breathers
• Oil pump, pick-up, 8 quart oil pan
• Eliminator Vortec intake manifold
• MSD Pro-Billetdistributor
• Moroso Ultra 40 spark plug wires, black, under-header (terminals installed)
• Spark plugs
• 8″ harmonic balancer
• Front timing cover
• Fuel pump block-off plate
• Dyno sheet of your engine
• IMCA-issued bolts and is approved for use in IMCA

*Check track/series rules for approved applications.

 

Installation Tips

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.

Specs

Sold in Quantity

Each

Cylinder Head Style

Assembled

Rear Main Seal Style

1-piece

Camshaft Type

Hydraulic Roller Tappet

Piston Material

Hypereutectic Aluminum

Cylinder Head Material

Aluminum

Crate Engine Type

Long Block

Connecting Rod Material

Powdered Metal

Engine Balance

External

Camshaft Included

Yes

Intake Manifold Included

Yes

Intake Valves Included

Yes

Valve Covers Included

Yes

Assembled

Yes

Cylinder Heads Included

Yes

Carburetor Included

No

Distributor Included

No

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 Plug Wires Included

Yes

Exhaust Valve Diameter

1.55

Horsepower

400

Engine Displacement

350

Combustion Chamber Volume

62cc

Spark Plugs Included

Yes

Crankshaft Material

Forged Steel

Compression Ratio

9.6:1

Rocker Arm Ratio

1.5:1

Exhaust Valves Included

Yes

Intake Runner Volume

210cc

Torque

400 ft./lbs.

Bore x Stroke (in)

4.000″ x 3.480″

Camshaft Duration (.050 in)

208° intake / 221° exhaust

Camshaft Lift (in)

.474 intake / .510 exhaust

Intake Valve Diameter

2

MFG. Part #

19419604