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ModMax Forged 4340 Crankshaft 5.4L Stock Stroke

ModMax Forged 4340 Crankshaft 5.4L Stock Stroke

List Price: $1,099.00
Our Price: $829.00
You save $270.00!

Product Code: 91025341

Our ModMax forged 4340 Crankshafts for all 5.4L and Lightning engines are a must when adding horsepower to your Modular engine. These cranks feature MICRO ALLOY forgings for high strength and durability. This model is a stock stroke 4.165" crank for a drop in installation for any 5.4 engine using stock dimension connecting rods. It has added material and is designed to be internally balanced. These cranks have been used in 1000+ horsepower engines with no failures. NOTE: These cranks have 8 bolt flywheel flanges so you may need to purchase the correct flywheel or flexplate if your current engine has a 6 bolt crank.


Main Size

Rod Pin

Rod Length

910-25341 5.4L Crank





  • Oil holes that intersect shallow oil hole pockets in the main bearings to help maximize bearing surface on the mains and improve oil flow to the rods
  • Fillet rolled to increase strength and OD Induction Hardened to provide maximum wear resistance
  • Lightening holes in all four rod throws to reduce rotational weight and reduce or eliminate the need for heavy metal to balance
  • Two step polishing process for the rod and main journal surfaces
Average Customer Review: 3 of 5 Total Reviews: 2 Write a review.

  0 of 0 people found the following review helpful:
Crank February 19, 2018
Reviewer: Anonymous Person from gettysburg, PA United States  
Crank that showed up was cobra jet crank, not the center balanced crank as advertised. By the time the machine shop installed it, too late to send back

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  0 of 0 people found the following review helpful:
Quick shipping February 20, 2014
Reviewer: David Crews from Zanesville, OH United States  
I was amazed at the quick shipping I received on the crank. It has been installed yet, but it is a nice looking piece.

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