B14125030 Balanced Competition Assembly Ford 351W
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EAGLEPART NUMBER: 356-B14125030

B14125030 Balanced Competition Assembly Ford 351W

$2,94599
ShippingShips on 09/15/2026
Lowest PriceLowest Price Guarantee

Balanced 4 in. Forged 4340 Steel Crank
  • 6.250 in. H-Beam Rods
  • 7/16 in. ARP 8740 Bolts
  • Forged 4032 Mahle -6.5cc Flat Top 4.030 in. Pistons
  • Plasma-Moly File-Fit Rings
  • King Xp Rod/Main Bearings

    Eagle B14125030 Features:

    • Balanced Competition assembly
    • Displacement: 408
    • Pistons: Mahle
    • Dome Volume: -6.6 cc
    • Piston Alloy: 4032
    • Bore Size: 4.030 in.
    • Rings: 1.5, 1.5, 3.0mm
    • Pin Size: .927 in.
    • Precision-Balanced Power Built for Serious RPM

      Eagle Balanced Competition Rotating Assemblies deliver race-ready strength and smooth performance through expertly matched components and precision balancing backed by Eagle’s performance-engineering heritage. Built using high-quality forged and machined materials designed to withstand high cylinder pressures and sustained rpm, these assemblies emphasize durability, consistent clearances, and dependable fitment across a wide range of performance engine builds. With a focus on machining accuracy, quality control, and real-world reliability, Eagle rotating assemblies provide a confident foundation for builders seeking strong power potential and stable operation in demanding street, strip, and competition environments.

    Part TypeEngine Rotating Assembly Kit
    Product LineEagle Balanced Competition Rotating Assemblies
    BrandEAGLE
    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 Style1-piece, 2-piece
    Main Bearing Undersize (In.)Stock
    Crankshaft IncludedYes
    Piston Rings IncludedYes
    Bore (Mm)102.362
    Actual Engine Cid408
    Engine Stroke4 in (101.6 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 NumberB14125030
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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