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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: Average Customer Review: 4 of 5 4 of 5 Total Reviews: 2 Write a review.

  0 of 0 people found the following review helpful:
3 of 5 Partial delivery from DHL. 1 crankshaft missing June 18, 2022
Reviewer: corey hamilton from Redcliffe , Queensland Australia  

I have only received one of the two the crankshafts.

I Received one piece on the 01.06.2022 Peice ID JD014600009973547623. Packaged well and undamaged.

However Piece ID JD014600009973547622 has not been received and last tracked CINCINNATI HUB, OH - USA 25.05.2022, 09.01 Local time.

I have messaged DHL but have had a response.

Is there anything you guys can do from your end?

Thanks Corey Hamilton

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  0 of 0 people found the following review helpful:
5 of 5 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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