SP350/357 BASE
357 HP @5,500 RPM/ 407 LB-FT TORQUE @4,000 RPMprice: $5,140
part number: 19420870
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Take the fight to the streets As the latest in Chevrolet Performance’s Street Performance crate-engine lineup, the SP350/357 is designed as an affordable performer to match just about any budget. Better still, it uses strong components and modern technology to make it a better alternative to rebuilding. The SP350/357 leverages the strength of a strong rotating assembly secured in a brand-new block with four-bolt mains, and matches it with modern valvetrain technology to support high-rpm capability.
Part Number: 12677167 / 19367080
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 350
Bore x Stroke (in): 4.000 x 3.480
Block: Cast iron with 4-bolt main caps
Crankshaft: Nodular Iron
Connecting Rods: Powdered metal
Pistons: Cast aluminum
Camshaft Type: Hydraulic roller
Camshaft Lift (in): 0.473" intake / 0.473" exhaust
Camshaft Duration (@.050 in): 215° intake / 223° exhaust
Cylinder Heads: Cast iron; as cast with 64cc chambers
Valve Size (in): 1.940 intake / 1.500 exhaust
Compression Ratio: 9.0:1 nominal
Rocker Arms: 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 : Not Included
Intake Manifold : Not Included
• Use the Holley 670-cfm 4-barrel carburetor to achieve the listed horsepower and torque
• Requires intake manifold, carburetor, distributor, spark plug wires and water pump to complete assembly
• Requires externally balanced automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
• Requires Externally Balanced Dampener
• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine applications