Do you have any pics of it installed in your car, showing how low it hangs in the car compared to the K member? I have a 68 Barracuda that I am putting a 360 Magnum in and looking at this pan.
There are 2 types of magnum heads:
1. The ones that are cracked
2. The ones that are gonna crack
If yours were not cracked, they will. It is the sad truth.
I have 2 engines. One is a 2001 5.9 with 65,000 miles and the other is a 2001 5.9 with 120,000 miles. Both sets are both cracked, all have 1 cylinder each cracked. All cylinders that were cracked had this sandy colored look to them.