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SP350/357 BASE

$4,250

MSRP

357 HP

@5500 RPM

12677167

PART NO.

407 LB-FT

@4000 RPM

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.  

SP350/357 Base Dyno

SP350/357 Base Image Gallery

Tech Specs

Part Number:  12677167

Engine Type: Chevy Small-Block V-8

Displacement (cu. in.): 350

Bore x Stroke (in.): 4.000 x 3.480

Block (P/N 10105123): Cast iron with 4-bolt main caps

Crankshaft (P/N 10243070): Nodular Iron

Connecting Rods (P/N 10108688): Powdered metal

Pistons (P/N 88894280): Cast aluminum

Camshaft Type (P/N 12677151): 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 64-cc chambers  

Valve Size (in): 1.940 intake / 1.500 exhaust

Compression Ratio: 9.0:1 nominal

Required Fuel: Premium

Maximum Recommended rpm: 5600

Installation Guides

Find everything from the vital data about your engine’s capabilities to how to install it into your build.

*The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.

 

Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.

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*The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.

 

Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.