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 adn 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 additional center counterweights 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.

 

	Stroke	Main Size	Rod Pin	Rod Length
910-25341 5.4L Crank	4.165"	2.657"	2.086"	6.657"