Chevrolet Performance SP350385 Base 350ci Engine Kit

SP350/385 Base 350ci Engine Kit

• With Carburetor

  Kit Includes:

  • Chevrolet Performance SP350/385 Base Engine – 809-19433039
  • Holley 770 cfm Street Avenger Carb w/Electric Choke – 510-0-80770
  • JEGS Carburetor Stud Kit, 1-1/2” Length – 555-15840
  • JEGS Chrome Fuel Pump Mounting Plate – 555-50580
  • JEGS Lightweight Fuel Pump Pushrod – 555-15930
  • JEGS 8.0mm Pow’r Wires – 555-402011
  • JEGS Chrome Mechanical Fuel Pump – 555-15950
  • JEGS Fuel Line and Fitting Kit, Carburetor to Mechanical Fuel Pump – 555-100816
  • JEGS Dual Feed Carburetor Fuel Line Kit – 555-100821

  INSTALLATION NOTES:

  • Use the Holley 770 cfm four-barrel carburetor to achieve the listed horsepower and torque
  • Comes with 12.750” externally balanced 153-tooth automatic transmission flexplate. Change to externally balanced flywheel for manual transmission applications.
  • Designed for pre-1976 street vehicles or any off-road vehicle.
  • Some assembly and minor engine tuning required
  • Not intended for marine application

  19433039K supersedes 19417624K

  The Foundation for a High-Revving 350 Small-Block!

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  The SP350/385 crate engine incorporates modern technologies such as a beehive-type valve springs to take the classic 350 Small-Block to new levels of high-rpm performance – without sacrificing the signature torque that has made it the benchmark of V-8 engines for nearly half a century.

  In fact, the 385 horsepower rating of the engine is complemented by excellent low-rpm torque, with the SP350/385 generating 405 lb.-ft. of torque at 3,600 rpm. It’s all due to the high-flow, lightweight aluminum cylinder heads. They’re based on the proven Fast Burn design, with large intake runners and 2.00/1.55-inch valves. The beehive valve springs enable greater high-rpm performance and durability, allowing the engine to rev higher to make the most of every cubic foot of air drawn through it.

  As with all of Chevrolet Performance’s Small-Block crate engines, the SP350/385 is built with a cast-iron block with four-bolt mains. It also features a forged steel crankshaft, an aggressive hydraulic roller camshaft and durable, high silicon pistons. In this value-driven ”Base” crate engine package, it also includes the intake manifold, distributor, water pump, damper and flexplate.

  SP350/385 BASE TECH SPECS:

  • Engine Type: Chevy Small-Block V-8
  • Displacement: 350ci
  • Bore x Stroke: 4.000” x 3.480”
  • Block: Cast-iron with four-bolt main caps
  • Crankshaft: Forged steel, 1-piece rear main seal
  • Connecting Rods: Powdered metal
  • Pistons: Hypereutectic aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .474” intake / .510” exhaust
  • Camshaft Duration (@.050 in.): 208° intake / 221° exhaust
  • Cylinder Heads: ‘Fast Burn’ aluminum, 62cc combustion chambers
  • Valve Size: 2.000” intake / 1.550” exhaust
  • Compression Ratio: 9.6:1
  • Rocker Arms: Stamped steel
  • Rocker Arm Ratio: 1.5:1
  • Distributor: HEI type
  • Water Pump: Cast-iron, long-style
  • Flexplate: 12.75” diameter, 153-tooth
  • Recommended Fuel: Premium pump
  • Ignition Timing: 36° Total @ 4000 rpm
  • Maximum Recommended RPM: 5800
  • Balanced: External