Fast burn heads deliver race-winning power
Chevrolet Performance’s 23-degree Fast Burn heads have large, 210-cc intake runners and 2.00/1.55-inch valves, along with specially shaped combustion chambers that make quick, efficient work of the air/fuel charge. When partnered with an aggressive, high-lift camshaft, you’ve got a great balance of horsepower and torque — and that’s exactly what you get with the CT400 racing engine.
The foundation for the CT400 is our SP350/385 crate engine, including a sturdy iron block with four-bolt mains, a forged crankshaft, and high-strength pistons. We’ve tuned the CT400 for more power, rated at 404 horses and 406 lb-ft of torque.
Rounding out the package is a racing oil pan with a dual kick-out design, as well as a valve cover breather kit, special aluminum roller rocker arms, a single-plane aluminum high-rise intake manifold, and balancer. You add the water pump, carburetor, starter, distributor, spark plugs, and wires.
Engine Type: Chevy Small-Block V-8
Displacement (cu. in.): 350
Bore x Stroke (in.): 4.000 x 3.480
Block (P/N 10105123): Cast-iron with four-bolt main caps
Crankshaft (P/N 12556307): Forged steel
Connecting Rods (P/N 10108688): Powdered metal steel
Pistons (P/N 10159436): Hypereutectic aluminum
Camshaft Type (P/N 10185071): Steel hydraulic roller
Camshaft Lift (in.): .474 intake / .510 exhaust
Camshaft Duration (@.050 in.): 208° intake / 221° exhaust
Cylinder Heads (P/N 12464298): Fast Burn aluminum, 62-cc chambers
Valve Size (in.): 2.000 intake / 1.550 exhaust
Compression Ratio: 9.72 Nominal
Rocker Arms (P/N 19210724): Aluminum, roller style
Rocker Arm Ratio: 1.5:1
Recommended Fuel: 92 octane
Ignition Timing: Base 10° BTDC, 32° Total
Maximum Recommended rpm: 5800