143123375 Street & Strip Rotating Assembly for Ford 8BA Flathead Engines [4.125 in. Stroke, 3.375 in. Bore]
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EAGLEPART NUMBER: 356-143123375

143123375 Street & Strip Rotating Assembly for Ford 8BA Flathead Engines [4.125 in. Stroke, 3.375 in. Bore]

$2,70299
ShippingShips on 09/21/2026
Lowest PriceLowest Price Guarantee

4.125 in. Stroke
Street & Strip Rotating Assembly
  • Ford 8BA Flathead Engines
  • 295 ci.
  • 4.125 in. Stroke
  • 3.375 in. Bore
  • Cast Steel Crank
  • Dome Pistons
  • H-Beam Rods
  • Unbalanced

    This Street and Strip rotating assembly is engineered for reliable performance in Ford 8BA Flathead builds requiring a combination of strength, durability, and precision-machined components. Each part is selected to deliver consistent power production with forged pistons, H-Beam rods, and a cast steel crank matched to high-quality bearings for dependable operation under increased load.

    Eagle 143123375 Includes:

    • 4.125 in. Cast Steel Crankshaft
    • 7.000 in. 4340 H-Beam Connecting Rods with 3/8 in. ARP 8740 Rod Bolts
    • Forged 4032 Icon Pistons with 13.5 cc Dome Volume
    • Piston Rings: 1/16 in., 1/16 in., 3/16 in.
    • King SI Rod and Main Bearings

    Eagle 143123375 Features:

    • Street and Strip assembly designed for Ford 8BA Flathead engines
    • 295 cid displacement configuration with 3.375 in. Bore
    • 4032 forged piston alloy for improved durability and thermal stability
    • 1.374 in. Piston Pin Height and 0.750 in. Wrist Pin Diameter
    • 4.125 in. Stroke for increased torque output
    • 4340 H-Beam rods engineered for high-strength performance under load
    • ARP 8740 hardware provides secure, high-tensile rod bolt clamping
    • Matched bearing set ensures proper oil film and longevity

    Eagle 143123375 Notes:

    • Damper not included
    • Flexplate/flywheel not included
    • Unbalanced, assembly must be balanced by a qualified machine shop before use
  • Eagle Ford 8BA Flathead Street and Strip Rotating Assemblies have the perfect balance of reliability, affordability, and performance for engines producing under 700 horsepower. These kits feature quality components including an Eagle cast steel crankshaft, Eagle H-Beam rods, Ross pistons, plasma-moly rings and Clevite or King bearings!

    Notes:

    • 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.
    • All kits are designed for internal balance.
    Show More
    • Ford Flathead engines feature a standard bore size 3.187", kits are available in .125", .155" and .188" oversizes.
    • Compression ratio for these kits will need to be calculated after determining deck height and cylinder head volume.
    • Eagle Specialty Products reserves the right to substitute pistons due to availability.
    Part TypeEngine Rotating Assembly Kit
    Product LineEagle Ford 8BA Flathead Street and Strip Rotating Assemblies
    BrandEAGLE
    Part CategoryPerformance Parts
    BalancedNo
    Piston Material4032 Forged Aluminum
    Part FitmentSemi Universal
    Actual Engine Cid295
    Engine Stroke4.125 in
    Connecting Rod Length Center To Center7.000 in
    Bore3.375 in
    Vendor Part Number143123375
    Package Qty1
    Package TypeEA
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    No Reviews

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