I don't think they have a hard surface...
It was a big deal in Australia for the trucks that they induction hardened the journals on their 318s, that indicates that there is no hardening for the car journals.
We had one bloke do a 360 Poly here, but he used a 360 bottom end and grafted the Poly heads onto it. It took some work.
Ray
On Wednesday, 24 June 2015 16:13:16 UTC-4, MO wrote:
This brings to mind a question I should know ( excuse , I cannot start a new thread)
When a crank is turned down more than .010, doesn't that take off the hard surfacing? All kinds of stock stroked cranks these days. Doesn't that make them weaker? MO