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Eagle Eagle Ford Big Block Competition Rotating Assemblies

Eagle 15014080
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Eagle Eagle Ford Big Block Competition Rotating Assemblies $1,999.99
Competition Rotating Assembly
Ford Big Block
Stroke: 4.140
Disp @ 4.440: 513
Rod Length: 6.700
Pistons: -3cc Flat Top
Rings: File Fit
Comp. Ratio 70cc/80cc/90cc: 13.2/11.9/10.9

Eagle 15014080 Details

4.140" Stroke

Designed for Internal Balance - Flexplate/Flywheel and Balancer Not Included, Professional Machine Shop Balancing Required.


Manufacturer's Part Number:

Eagle Ford Big Block Competition Rotating Assemblies offer the ultimate reliability and strength at an affordable price for the most demanding applications. These kits include an Eagle Forged 4340 Steel Crankshaft, Eagle H-Beam Rods, Mahle Premium Forged Pistons, Hastings Rings, and high-performance Clevite or King Bearings.


  • 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.
  • Ford Big Block engines have a standard bore size of 4.360". Kits are available in .030" and .080" oversize.
  • Eagle Specialty Products reserves the right to substitute pistons due to availability.

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Some parts are not legal for use in California or other states with similar laws / regulations