Magnum Adventure

rumblefish360 said
Head cracking issues abound from every auto manufacturer there is at any given time on a y engine. Many peoe here love to trash the Magnim head as prone to cracking and offer nothing but repeated statements of the issue.

I have had J heads crack, '68 Ford 302 heads crack. Cooling the engine is what needs to be done effectively in order to avoid any head cracking issues.
Whe some heads are more prone to cracking, the crack can be of little issue or a catastrophe.

You make a good point, Rob.

My 360 Magnum (regular heads) has been subjected to 10 pounds of boost from my Vortech supercharger on the strip and on the street for several years, now, and shows no signs of cracking. But, when I installed the blower, I bought a new 3-core heavy-duty radiator and it's never gotten very hot... 200 max.
On the other hand, I inadvertantly let my 1993 318 DAKOTA get too hot once and it cracked both heads.