SP350 / 385 HP Turn-Key Crate Engine

Product Details

Modern Valvetrain Technology Helps This 350 Rev!

Chevrolet Performance’s SP350/385 Turn-Key uses aluminum Fast Burn cylinder heads equipped with LS-style beehive valve springs for greater high-rpm performance that helps this power-dense engine offer 385 horsepower and 405 lb.-ft. of torque.

The lightweight cylinder head casting features large, 210cc intake runners, with the beehive valve springs matched with steel retainers, machined steel spring seats and split key locks. The beehive-style valve springs allow the SP350/385 to rev higher to make the most of every cubic inch of air drawn through it.

Like all of our Small-Block crate engines, this one is built with a brand-new block with four-bolt mains; and it features a hydraulic roller camshaft. The Turn-Key engine package includes the distributor, carburetor, and balancer installed. The starter, air conditioning pump, alternator, front-end accessory drive kit and more are also included (installation required).

TECH SPECS
Part Number: 19333158
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
Camshaft Type (P/N 10185071): Hydraulic roller
Camshaft 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: 9.6:1 nominal
Rocker Arms (P/N 10089648): Stamped steel
Rocker Arm Ratio: 1.5:1
Recommended Fuel: Premium pump
Ignition Timing: 36º Total @ 4,000 rpm
Maximum Recommended rpm: 5,800
Balanced: External
Flexplate (P/N 14088765): 12.750"
Intake Manifold (P/N 12366573): Dual Plane

INSTALLATION NOTES
• SP350 Base Engine, P/N 19333157 is also available
• Comes with 12.750" externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
• Requires fuel line from fuel pump to carburetor
• Designed for pre-1976 street vehicles or any off-road vehicle
• Some assembly and minor engine tuning required
• Not intended for marine applications

NOTE: Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.

Chevrolet Performance Crate Engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty.

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