Max Bore on a 98 Magnum 360?

If you are looking to make that kind of power then you should use a half fill block filler in the block which will help alot in supporting the cylinders in an overbore/high output situation. I have a half fill of Hardblok in my 340 and it didn't effect cooling at all being the heat is actually generated in the head and not at the bottom of the bores.


Chuck