G'day, i've got a 454 motor that I am trying to identify which block I have, and what vehicle it came from. The casting numbers are:3999289 with a P cast next to it.
The block has the two tapped holes above the oil filter boss which I believe are for a cooler? I know that it is a 2 bolt mains.
Is it a high perf block? Any help would be greatly appreciated.
Cheers.