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Vehicle Info NeededSCATPART NUMBER: 942-1-40055BI
Chevy 350 4340 Forged Std. Weight Street/Strip Rotating Assembly 355ci
$2,52224$2654.99You Save$132.75
Ships on 09/21/2026
Lowest Price Guarantee350 Main Journals355 Cubic Inch 3.480'' Crank Stroke 5.700'' Rod Length 2-Piece Rear Seal
- Chevy 350 4340 Forged Std. Weight Street/Strip Rotating Assembly
- 355ci
- 4.030'' Bore
- Forged Dish Piston
- 9.8:1 w/58cc; 8.5:1 w/64cc; 8.0:1 w/76cc
- 3.480'' Crank Stroke
- 5.700'' 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 Components are designed for the ultimate in performance. They take the guesswork out of engine assemblies, just wash, Q.C., and put together.
Balanced & Unbalanced Complete Assembly Includes:
- 4340 Forged Standard Weight Crankshaft
- Premium Pro Comp Forged 4340 I-Beam Connecting Rods with ARP 8740 7/16'' x 1.400'' Cap Bolts
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- 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
- Crank/Rod/Piston Kits DO NOT Include Piston Rings, Main and Connecting Rod Bearings, Flexplate or Harmonic Damper
Part TypeEngine Rotating Assembly Kit
Product LineScat Small Block Chevy 4340 Forged Standard Weight Street-Strip Rotating Assembly
BrandSCAT
Package Height13.0
Package Width20.0
Package Length25.0
Weight88.0 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 StyleI-beam
Rod Bearing Undersize (Mm)Stock
Piston Ring Facing MaterialPlasmamoly
Piston StyleDish, with two valve reliefs
Assembly Lubricant IncludedNo
Piston Head Volume (Cc)24
Gaskets IncludedNo
Rear Main Seal Style2-piece
Main Bearing Undersize (In.)Stock
Crankshaft IncludedYes
Piston Rings IncludedYes
Bore (Mm)102.362
Actual Engine Cid355
Engine Stroke3.48 in (88.392 mm)
Connecting Rod MaterialForged 4340 steel
Pistons IncludedYes
Rod Bearing Undersize (In.)Stock
QuantitySold as a kit
Main Bearings IncludedYes
Engine BalanceInternal
Rod Bearings IncludedYes
Connecting Rods IncludedYes
Oil Pump IncludedNo
Camshaft IncludedNo
Timing Chain And Gears IncludedNo
BalancedYes
Piston MaterialForged aluminum
Cam Bearings IncludedNo
Part FitmentSemi Universal
Plastigage IncludedNo
Lifters IncludedNo
Bore4.03 in (102.362 mm)
Vendor Part Number1-40055BI
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)
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