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Scat Engine Components 1-90455BI Series 9000 Cast Rotating Assembly 383ci SBC Internal Balance

Manufacturer

Picture for manufacturer Scat Engine Components

Part Number

1-90455BI
10 reviews
Sale Price

$1,798.96

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Usually delivered within 2 days

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Product Details

The Scat Engine Components 1-90455BI is a complete Series 9000 Cast Pro Comp rotating assembly designed for building a high-performance 383 cubic inch small block Chevy engine. This internally balanced kit provides an excellent foundation for street/strip applications, combining quality components with proven durability.

Complete Assembly Includes:

  • Series 9000 cast iron crankshaft with 3.750-inch stroke and 350 main journals
  • Forged 4340 steel I-beam connecting rods with 6.000-inch length
  • Forged aluminum pistons for 4.030-inch bore with bushed pins
  • Piston rings with plasmamoly facing material
  • Premium rod and main bearings
  • 3/8-inch connecting rod cap bolts

Key Specifications:

  • Displacement: 383 cubic inches
  • Bore: 4.030 inches
  • Stroke: 3.750 inches
  • Rod Length: 6.000 inches
  • Internal Balance (2-piece rear main seal)
  • Rated for street/strip use up to 500 horsepower

This internally balanced assembly does not require an external balance flexplate or harmonic damper. The Series 9000 cast iron crankshaft uses nodular iron construction similar to factory GM 400 cranks, providing excellent strength and reliability for street performance applications. The forged rods and pistons deliver durability while keeping costs reasonable compared to all-forged assemblies. Assembly arrives fully balanced and ready to install in standard small block Chevy 350 deck height blocks.

Products specifications

Actual Engine CID

383

Balanced

Yes

Bore (in)

4.030 in.

Bore (mm)

102.362mm

Cam Bearings Included

No

Camshaft Included

No

Connecting Rod Beam Style

I-beam

Connecting Rod Material

Forged 4340 steel

Connecting Rods Included

Yes

Crankshaft Included

Yes

Crankshaft Material

Cast iron

Engine Stroke (in)

3.750 in.

Main Bearing Undersize (in)

Stock

Main Bearing Undersize (mm)

Stock

Main Bearings Included

Yes

Notes

Connecting rods include 3/8 in. ARP 8740 cap screw bolts.

Oil Pump Included

No

Piston and Ring Oversize (in)

0.030 in.

Piston Head Volume (cc)

+5.00cc

Piston Material

Forged aluminum

Piston Ring Facing Material

Plasmamoly

Piston Rings Included

Yes

Piston Style

Flat top, with two valve reliefs

Pistons Included

Yes

Plastigage Included

No

Quantity

Sold as a kit.

Rear Main Seal Style

2-piece

Rod Bearing Undersize (in)

Stock

Rod Bearing Undersize (mm)

Stock

Rod Bearings Included

Yes

Wrist Pin Style

Floating

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