Chevrolet Performance SP350/385 350ci Base Crate Engine – 19433039

Build for maximum power with the Chevrolet Performance SP350/385 350ci Base Crate Engine. This foundation package delivers 385 horsepower and 420 lb-ft of torque, allowing builders to customize accessories. The SP350/385 Base features premium aluminum cylinder heads, aggressive camshaft, and optimized internals for maximum naturally aspirated performance. The base configuration provides excellent value while enabling personalization. Perfect for experienced builders seeking maximum small-block power with accessory flexibility. Factory-assembled, dyno-tested, and backed by Chevrolet Performance engineering excellence.

**Technical Specifications:**

Technical Specifications:
Reference: 19433039
Engine Type: V-8 Small-Block Chevy
Displacement (cu. in.): 350
Bore x Stroke (in.): 4.000 x 3.480
Block (Ref. 10105123): Cast iron with 4-bolt main bearings
Crankshaft (Ref. 12556307): Forged steel, shot-peened
Connecting Rods (Ref. 10108688): Powdered metal
Pistons (Ref. 10159436): Hypereutectic aluminum
Camshaft Type (Ref. 10185071): Hydraulic roller
Camshaft Lift (in.): .474 intake / .510 exhaust
Camshaft Duration (@.050 in.): 208° intake / 221° exhaust
Cylinder Heads (Ref. 19300955): Aluminum Fast Burn; 62 cc chambers
Valve Size (in.): 2.000 intake / 1.550 exhaust
Compression Ratio: 9.6:1 nominal
Rocker Arm (Ref. 10089648): Stamped steel
Rocker Arm Ratio: 1.5:1
Recommended Fuel: Premium pump
Ignition Timing: 36° total at 4000 rpm
Recommended Maximum RPM: 5800
Balanced: External