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.
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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
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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
- Requires the addition of a carburetor, starter, and water pump (not included).
- Requires an externally balanced flywheel (not included).
- 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.
- For Circle Track Racing only – not intended for street use.
