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
- 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.
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









***** –
Recommend seller. Items as described. Quality item, and the item was a good value for the price. Item was delivered in excellent condition.
Shipping time was excessive. This would be eBay’s fault, not the seller. Item shipped out June 16 from USA, and delivered July 8 in Canada. eBay definitely needs to overhaul their international shipping to provide better service for the amount they charge.
r***m (546) –
Fast shipping on the sellers part, the shipping company beat the heck out of the shipping box, (not sellers fault), item was exactly as described, great communication. Highly recommended seller.
d***g (1530) –
I Love speedway , though this time they upset me a little .. waiting for wheels finally called and they tell me on backorder and 6 months before they will be shipped , they should have contacted me , or better yet , don’t advertise things you don’t have , but this is the first problem in well over 20 years . they are still on my top for sellers.
0***1 (1) –
Great system for the price. Quick on shipping. Was shipped in 2 boxes….one arrived a couple of days earlier than expected and the other arrived a couple of days later than expected. It was all good though. Seller responded promptly to my question. Will purchase again!
i***d (433) –
Item as described, great product for the money. But Speedway needs to change their shipper – I was not home when this package arrived, and the carrier just threw the box on my front porch in the pouring rain – box was soaked. Couldnt they put it in a plastic bag?
.***. (91) –
Arrived in well packaged box. Quality of item is great with all (grade 5) bolts included. Condition couldn’t be better. Although arriving late due to USPS keeping the package in Bakersfield, CA for more then 4 days (maybe DOGE/Elon can fix next) the communication and tracking was a plus. A great value for anyone wanting to convert their YBlock generator to alternator.
g***d (406) –
Another great experience with this company fast response very helpful and fast shipping as always they are one of the best sellers I have ever dealt with. Thank you will be purchasing from them again and again. Couldn’t be happier the way they conduct business.
_***n (54) –
Item came packaged well, fast shipping, good looking item, expect it will be working and functioning for years to come. Very happy with this vendor, communication was excellent while I peppered them with questions before purchase. Thank you.