Someone needs to start re-casting 340 blocks

Dan the man said
I don't know all of the details as most of you guys do. But if the bigger main bearings create a heat problem then why did mopar increase the size of the main bearings of the 360?

because 360's are low rpm truck motors, duh.

[caveman]big strong mains more important in truck with granny 4spd [/caveman]