ct400

CT400

Fast burn power

The CT400 racing crate engine features Fast Burn cylinder heads with LS-style beehive valve springs that enable great high-rpm performance and durability.

PART NO. 19318604

WhyBuy

404 HP @5600 RPM

WhyBuy

406 LB-FT @4600 RPM

High-revving durability 

The beehive springs are part of the lightweight aluminum cylinder head assemblies. The CT400 also has a tough bottom end, anchored by a forged steel crankshaft and strong aluminum pistons installed in a brand-new block with four-bolt mains.

Installation Guides

Find everything from vital data about your engine’s capabilities to how to install it into your build.

CT400 Tech Specs

  • Part Number: 19318604
  • Engine Type: Chevy Small-Block V-8
  • Displacement (cu. in.): 350
  • Bore x Stroke (in.): 4.000 x 3.480
  • Block (P/N 10243870): Cast-iron with four-bolt main caps
  • Crankshaft (P/N 12670965): Forged steel, shot peened
  • 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: 9.72:1 Nominal
  • Rocker Arms (P/N 19210724): Aluminum, roller style
  • Rocker Arm Ratio: 1.5:1
  • Recommended Fuel: Premium pump
  • Ignition Timing: 36° Total @ 4,000
  • Maximum Recommended rpm: 5800

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.