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Vehicle Info NeededSCATPART NUMBER: 942-1-41010
Chevy 400 4340 Forged Std Weight Competition Rotating Assembly 377ci
$2,32699$2449.46You Save$122.47
Ships on 09/21/2026
Lowest Price Guarantee400 Main Journals377 Cubic Inch 3.500'' Crank Stroke 6.000'' Rod Length 2-Piece Rear Seal
- Chevy 400 4340 Forged Std Weight Competition Rotating Assembly
- 377ci
- 4.155'' Bore
- Premium Forged Flat Top Piston
- 11.6:1 w/58cc; 10.8:1 w/64cc; 10.1:1 w/76cc
- 3.500'' Crank Stroke
- 6.000'' Rod Length
- Unbalanced Assembly
This Unbalanced Complete Assembly Includes: - Crankshaft
- Connecting Rods
- Piston and Piston Rings
- Main & Rod Bearings
- 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
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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 Width19.0
Package Length26.0
Weight90.0 PG
Part CategoryPerformance Parts
Crankshaft MaterialForged 4340 steel
Piston And Ring Oversize0.03 in (0.8 mm)
Main Bearing Undersize (Mm)Stock
Wrist Pin StyleFloating
Connecting Rod Beam StyleH-beam
Rod Bearing Undersize (Mm)Stock
Piston Ring Facing MaterialPlasmamoly
Piston StyleFlat top, with two valve reliefs
Assembly Lubricant IncludedNo
Piston Head Volume (Cc)5
Gaskets IncludedNo
Rear Main Seal Style2-piece
Main Bearing Undersize (In.)Stock
Crankshaft IncludedYes
Piston Rings IncludedYes
Bore (Mm)105.537
Actual Engine Cid380
Engine Stroke3.5 in (88.9 mm)
Connecting Rod MaterialForged 4340 steel
Pistons IncludedYes
Rod Bearing Undersize (In.)Stock
QuantitySold as a kit
Main Bearings IncludedYes
Engine BalanceExternal
Rod Bearings IncludedYes
Connecting Rods IncludedYes
Oil Pump IncludedNo
Camshaft IncludedNo
Timing Chain And Gears IncludedNo
BalancedNo
Piston MaterialForged aluminum
Cam Bearings IncludedNo
Part FitmentSemi Universal
Plastigage IncludedNo
Lifters IncludedNo
Bore4.155 in (105.537 mm)
Vendor Part Number1-41010
Package Qty1
Package TypeEA
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![Engine Assembly Lube [4 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28000.jpg)
Some parts are not legal for use in California or other states with similar laws / regulations
