Chevy 400 4340 Forged Std Weight Competition Rotating Assembly 421ci

Name: Chevy 400 4340 Forged Std Weight Competition Rotating Assembly 421ci
Brand: SCAT
SKU: 942-1-41568
Price: 2445.14 USD
Availability: InStock

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Ships on 09/21/2026

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400 Main Journals

421 Cubic Inch

3.875'' Crank Stroke

6.000'' Rod Length

2-Piece Rear Seal

421ci
4.155'' Bore
CP Forged Flat Top Piston, -6.80cc
12.7:1 w/58cc; 11.8:1 w/64cc; 10.4:1 w/76cc
3.875'' Crank Stroke
6.000'' Rod Length
Unbalanced Assembly

This Unbalanced Complete Assembly Includes:
4340 Forged Standard Weight Crankshaft
Pro Sport H-Beam Connecting Rods with 7/16" Cap Screws
Forged Pistons with Piston Rings
Main & Rod Bearings
Stroker Clearanced
Unbalanced Assembly DOES NOT Include Flexplate and Harmonic Damper.

Scat rotating assembly component parts are designed for the ultimate in performance. They take the ''guess work'' out of engine assemblies, just wash, Q.C. and assemble.

Balanced & Unbalanced Complete Assembly Includes:

4340 Forged Standard Weight Crankshaft

Premium Pro Sport Forged 4340 H-Beam Connecting Rods with ARP 8740 7/16'' Cap Bolts
Premium Forged Pistons with Piston Rings
Main and Connecting Rod Bearings
Internal Balanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper
Unbalanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper

Part TypeEngine Rotating Assembly Kit

Product LineScat SBC 4340 Forged Standard Weight Competition Rotating Assembly

BrandSCAT

Package Height14.0

Package Width19.0

Package Length26.0

Weight90.0 PG

Part CategoryPerformance Parts

Part FitmentSemi Universal

Vendor Part Number1-41568

Package Qty1

Package TypeEA