Crankshaft question 351W

[robinsoncc]

Do 351w crankshafts vary in length depending on the year?

 

[Broncobowsher]

No.

I only know of 2 versions of the 351W crank from the factory. 1 piece rear main vs. 2 piece. Not even sure exactly what the difference is but I recall it has something to do with a slinger for the seal area.

Now harmonic balancers come in 3 or so different lengths.

 

[robinsoncc]

I think I figured out what to order.