Chevrolet Performance 604 APC Red Seal Engine Deal

Race-ready and Red Seal certified, the Chevrolet Performance CT400/GM 604 APC (P/N 19434604) is built for serious short track racers. With 404 horsepower and 406 lb-ft of torque, this small-block V8 uses advanced Fast Burn aluminum heads and LS-style beehive valve springs for high-revving performance and long-term durability.
TECH SPECS
- Part Number: 19318604 - NEW PN 88869604
- 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 4-bolt main caps
- Crankshaft (P/N 12670965): Forged steel shot peened
- Connecting Rods (P/N 10108688): Powdered metal
- Pistons (P/N 10159436): Hypereutectic aluminum
- Intake Manifold (P/N 12496822): Single-plane aluminum
- Camshaft Type (P/N 10185071): Steel hydraulic roller
- Valve Lift (in): .474 intake / .510 exhaust
- Camshaft Duration (@.050 in): 208° intake / 221° exhaust
- Cylinder Heads (P/N 19300955): Fast Burn aluminum; 62cc 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 rpm
- Maximum Recommended rpm: 5,800
- Balanced: External
INSTALLATION NOTES
- Requires addition of carburetor, starter, ignition, plug wires, water pump, distributor and exhaust system (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 stock engine location
- For Circle Track Racing only - Not intended for street use
- Circle Track racing engines from Chevrolet Performance include anti-tampering seals installed
- NOTE: Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.
- *Drivers name required for IMCA Seals* Add to comments box during checkout
Now available for $11,599 + tax at Humberview Commercial Trucks, your trusted United Racing Series Red Seal GM Engine supplier.
Need to order GM parts, discuss Chevrolet service, or explore financing? Use our Contact Form and we’ll help you get track-ready.