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.

 

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