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Chevrolet Performance SP350/385 Base 350ci Engine, 385 HP @ 5600 RPM

Chevrolet Performance 19333157


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Chevrolet Performance SP350/385 Base 350ci Engine, 385 HP @ 5600 RPM $5,049.00
SP350/385 Base 350ci Engine
  • 385 HP @ 5600 RPM
  • 405 ft/lbs Torque @ 3600 RPM

  • Chevrolet Performance 19333157 Details

    SP350/385 Base 350ci Engine

  • Use the Holley 770-cfm four-barrel carburetor p/n 809-19170093 toachieve the listed horsepower and torque
  • Requires four-barrel carburetor, spark plug wires and additionalcomponents to complete assembly
  • Comes with 12.750'' externally balanced 153-tooth automatictransmission flexplate. Change to externally balanced flywheelfor 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

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

    Free Shipping!

    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

    GM Warranty

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

    Will this engine operate with a holley 670 cfm vs the recommended 770 cfm , i am thinking of reducing fuel consumption , i understand that i would loose maximum horsepower capability , will there be any glitches created by reducing CFM

    Asked by: 1961lee
    Yes, you can use this with a 670 cfm carburetor, it will not make power at higher rpms compared to the 770 cfm
    Answered by: Rusty B
    Date published: 2018-06-11
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