The Chevrolet Performance CT400 is a Small Block Chevy circle track crate engine rated at 404 HP at 5600 RPM. It uses a cast-iron 4-bolt block, forged crankshaft and Fast Burn aluminum heads, and comes with an 8-quart dual kick-out circle track oil pan. The source listing states it is not IMCA legal.
Specifications:
- Type: Circle track crate engine (CT400)
- Horsepower: 404 HP at 5600 RPM
- Torque: 406 lb-ft at 4600 RPM
- Compression ratio: 9.72:1 nominal
- Block: Cast iron, 4-bolt main caps
- Crankshaft: Forged steel, 3.480 in stroke
- Cylinder heads: Fast Burn aluminum, 62cc chambers
- Valve sizes: 2.000 in / 1.550 in
- Intake manifold: Open-plenum high-rise
- Oil pan: 8-quart circle track, dual kick-out
- Valvetrain: Aluminum roller rocker arms with beehive valve springs
- Compliance: Not IMCA legal
- Fitment: Small Block Chevy
- Quantity: Each
- Part number: 19435604
Applications:
- Circle track and short-track racing (Chevrolet Performance CT400 class)
FAQ
How much power does the CT400 make?
It is rated at 404 HP at 5600 RPM and 406 lb-ft of torque at 4600 RPM.
What cylinder heads does the CT400 use?
It uses Fast Burn aluminum cylinder heads with 62cc combustion chambers and 2.000 in / 1.550 in valves.
Is the CT400 IMCA legal?
No. The source listing states this engine is not IMCA legal. Confirm eligibility with the specific sanctioning body before racing.
What is included for the valvetrain and oiling?
It comes with aluminum roller rocker arms, beehive valve springs, and an 8-quart dual kick-out circle track oil pan.

