SCAT 1-41825BIE All-Forged Chevy SB 383 Rotating Assembly

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Scat Chevy Small Block 4340 Forged *Standard Weight Competition Rotating Assembly


383 Cubic Inch 3.750'' Crank Stroke 6.000'' Rod Length.

1-Piece Rear Seal.

This Int/Ext Balanced Complete Assembly Includes:

Forged 4340 Standard Weight Crankshaft,

H-Beam Connecting Rods with Bushed Pin,

7/16" ARP 8740 Cap Bolts,

SRP Forged Flat Top Pistons,

Total Seal File Fit Piston Rings,

Clevite Main & Rod Bearings,

Includes Flexplate,

DOES NOT Include Harmonic Damper.

Compression Ratio with 58cc 11.8:1
Compression Ratio with 64cc 11.0:1
Compression Ratio with 70cc 10.3:1

  • Chevy small block Gen II (LT-based engines) 
  • Chevy small block Gen I 
  • This part is normally shipped directly from the manufacturer.


*This standard kit is not recommended for power adders such as nitrous or turbo.

Picture for reference only.

WARNING: May Cause Cancer and Reproductive Harm -