Small Block Crate Engine - SP350/357 Turn-Key

With 357 horsepower and more than 400 lb.-ft. of torque, the Chevrolet Performance 350/357 Turn-Key offers a great combination of performance and value.

Modern valvetrain technology is the key to its high-revving capability, pushing power to 5,500 rpm, while economical iron cylinder heads deliver excellent airflow and help make this potent crate engine more affordable. They’re matched with a friction-reducing roller camshaft that helps optimize performance across the rpm band.

The rest of 350/357 Turn-Key is built with strong, all-new components, including a brand-new four-bolt block, a durable nodular iron crankshaft and more. The Turn-Key Engine comes with the intake manifold and distributor installed. It also includes the carburetor, front-end accessory kit, chrome air cleaner, starter, and spark plug wires (some installation required).

INSTALLATION NOTES

• Front-end accessory drive included but not installed for shipment
• Comes with 12.750" externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
• Requires fuel supply line to carburetor
• Not intended for marine applications

TECH SPECS

• Part Number: 19433034
• Engine Type: Chevy Small-Block V-8
• Displacement (cu in): 350
• Bore x Stroke (in): 4.000 x 3.480
• Block (P/N 19431835): Cast iron with 4-bolt main caps
• Crankshaft (P/N 12691722): Forged Steel
• Connecting Rods (P/N 10108688): Forged powder metal, shot peened
• Pistons (P/N 88894280): Cast aluminum
• Intake Manifold (P/N 12676887): Dual-plane aluminum
• Camshaft Type (P/N 12677151): Hydraulic roller
• Valve Lift (in): 0.473 intake / 0.473 exhaust
• Camshaft Duration (@.050 in): 215° intake / 223° exhaust
• Cylinder Heads: Cast iron; as cast with 62cc chambers
• Valve Size (in): 1.940 intake / 1.500 exhaust
• Compression Ratio: 9.0:1
• Rocker Arms (P/N 19210725): Stamped steel
• Rocker Arm Ratio: 1.5:1
• Recommended Fuel: Premium pump
• Ignition Timing: 32º Total @ 4,000 rpm
• Maximum Recommended rpm: 5,600
• Balanced: External
• Flexplate (P/N 14088765): 12.750"

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