146? Secondly, how much can you surface #471 heads without

           problems.                Thx in advance

                                              Bill

Bill

Pelham,Al

All Y flywheels will interchange, but they have different clutch diameters.

.030 would be a good cleanup cut without needing to mill the intake surfaces.  They could probably stand .060 from a strength standpoint, but you might have to mill the intake surfaces to get the manifold to fit.

John in Selma, IN

John - "The Hoosier Hurricane"