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Vehicle Info NeededSCATPART NUMBER: 942-1-41564BI
Chevy 400 4340 Forged Std Weight Competition Rotating Assembly 421ci
$3,11900$3283.16You Save$164.16
Ships on 09/21/2026
Lowest Price Guarantee400 Main Journals421 Cubic Inch 3.875'' Crank Stroke 6.000'' Rod Length 2-Piece Rear Seal
- Chevy 400 4340 Forged Std Weight Competition Rotating Assembly
- 421ci
- 4.155'' Bore
- CP Forged Flat Top Piston, -6.8
- 12.7:1 w/58cc; 11.8:1 w/64cc; 10.4:1 w/76cc
- 3.875'' Crank Stroke
- 6.000'' Rod Length
- Internal Balanced Assembly
This Balanced Complete Assembly Includes: - Crankshaft
- Connecting Rods
- Piston and Piston Rings
- Main & Rod Bearings
- Internal Balanced 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
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- 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 Width20.0
Package Length26.0
Weight95.0 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number1-41564BI
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
