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Vehicle Info NeededEAGLEPART NUMBER: 356-B13015030
Chevy Small Block 400 2pc Seal Balanced Street and Strip Rotating Assemblies
$2,00799
Ships on 11/16/2026
Lowest Price GuaranteeChevy 400 Small Block 2pc Seal Balanced Rotating Assemblies3.750" Stroke 6.000" Rods Forged Pistons Externally Balanced
- Street and Strip Rotating Assembly 400 2pc External
Stroke: 3.750
Disp. @ .060: 407
Rod Length: 6.000
Pistons: -5cc Flat Top
Rings: File Fit
Comp. Ratio 58cc/64cc: 11.8/11.0
External balance - includes a street dampner and 168 tooth Automatic transmission flexplate. If you require a different flexplate, flywheel or dampner, the factory GM 400 small block external balanced items can be used or new components will need to be purchased separately.
Performance Small Block Chevy Rotating Assemblies
These rotating assemblies are designed for pre-1986 small block Chevy with 2-piece rear main seals. They offer affordable performance and reliability for engines making less than 500 horsepower. Kits include an Eagle Cast Steel Crankshaft; Eagle "SIR" I-Beam Rods; Silvolite Cast, SRP, or Mahle Forged Pistons; Hastings Rings; and Clevite or King Bearings. Kits are available with internal or external balance.
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Assembly part numbers that begin with “B” are balanced by Eagle and require no additional balancing. Part numbers that do not begin with “B” are unbalanced assemblies and must be balanced by a qualified machine shop before use. Kits are available in a standard bore or .020 in., .030 in., .040 in., and .060 in. oversized. Eagle Specialty Products reserves the right to substitute pistons due to availability.Part TypeEngine Rotating Assembly Kit
Product LineEagle SBC 2pc Seal Balanced Street and Strip Rotating Assemblies
BrandEAGLE
Part CategoryPerformance Parts
Crankshaft MaterialCast 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 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 Cid407
Engine Stroke3.75 in (95.25 mm)
Connecting Rod MaterialForged 5140 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
BalancedYes
Piston MaterialForged aluminum
Cam Bearings IncludedNo
Part FitmentSemi Universal
Plastigage IncludedNo
Lifters IncludedNo
Bore4.155 in (105.537 mm)
Vendor Part NumberB13015030
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
