19433032 Chevrolet Performance SP350/357

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Item #: 19433032
Reg. Price: $7,669.13
Our Price: $6,039.44
Quantity:
 
2 units available

 

Cancer and Reproductive Harm

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Description  more details

19433032 Chevrolet Performance SP350/357 Base Kit Replaces 19420881, 19367080, 12677167, 19420870, 119431612
357 HP 350 Base, A New Standard For Affordable Small Block Performance!

A NEW STANDARD FOR AFFORDABLE SMALL-BLOCK PERFORMANCE!


fit’s affordable performance you’re looking for to power your project vehicle, Chevrolet Performance’s SP350/357 delivers! With 357 horsepower and a deep reserve of low-rpm torque, it quickly reminds you why Chevrolet’s original 350 Small-Block has been the industry benchmark for decades.

The SP350/357 leverages the strength of a strong rotating assembly secured in a brand-new block with four-bolt mains, along with economical Vortec iron cylinder heads. A roller camshaft optimizes drivability and airflow capability.
It all adds up to a 24-horsepower gain over our 350 HO crate engine – and a great, affordable alternative to rebuilding. Our base crate engine package includes an assembled long block, including the oil pan and balancer. You finish it off your way, with the ignition system, induction system and additional accessories.

TECH SPECS

Part Number: 12677167
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 350
Bore x Stroke (in) : 4.000 x 3.48
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: (P/N 12558060)

Cast iron; as cast with 64cc chambers
Valve Size (in): 1.940 intake / 1.500 exhaust
Compression Ratio: 9.0:1 nominal
Rocker Arms (P/N 10089648): 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"
Intake Manifold (P/N 12676887): Dual Plane

 SP350/357 Base Kit: (NOT INCLUDED:  Balancer, Timing Pointer, Flexplate/Flywheel)

INSTALLATION NOTES

• Use the Holley 670-cfm 4-barrel carburetor P/N 19170092 to achieve the listed horsepower and torque
• Requires intake manifold, carburetor, distributor, spark plug wires and water pump to complete assembly
• Requires externally balanced flywheel for manual     transmission.
• Requires feed line from fuel pump to carburetor
 The Base engine will not come with a balancer, timing pointer, or flexplate/flywheel.  

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

• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine applications



Fuel: The SP350/357 engine does not include a fuel pump. However, it does have a mechanical fuel pump boss. The fuel system must be capable of supplying adequate fuel volume at a minimum of 6 psi pressure when the engine is operating at Wide Open Throttle (WOT). The following fuel pumps are available from Chevrolet Performance. High volume, in-line, electric fuel pump part number 25115899 that flows 72 gallons per hour at 6-8 psi outlet pressure. Street performance pump part number 12355612 can be used on all Chevrolet 283-400ci V-8 engines. The pump has a 7 psi shut off pressure, 3/8-18 inlet and outlet ports and has a free flow rating of 110 gallons per hour. Competition pump part number 12355613 can be used on all Chevrolet 283-400ci V-8 engines. The pump has a 9 psi shut off pressure, 1/2"- 14 inlet and outlet ports and has a free flow rating of 115 gallons per hour.

 



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