[goaztecs]

Hi All,

Here is what I learned during that fiasco: The factory Ford late model 50 oz flywheels, use metric 8MM bolts. Dang near all of the aftermarket brands use 5/16.

This is important to note because many builders use a 50 oz 157 tooth "5.0 style" flywheel in their 351W stroker applications. Since the stroke is longer and the counterweights are different, the imbalance is accounted for by using the flywheel with the higher weight imbalance (50oz vs. 28 oz for the "old style"). Then, weight is either added or subtacted from another part of the 50 oz flywheel to come up with the proper balance for the stroker's rotating assembly.

In summary - if you have a windsor stroker, you probably have a "late model" or "5.0 style" 50 oz flywheel. If it is a factory Ford piece, it will use 8MM bolts for the pressure plate. If it is an aftermarket part, it will need the 5/16.

I hope this helps somebody...