Hey guys, I have a stock 5.0 block with a two bolt main out of a 1989 Mustang. I was planning on pushing around 375 HP after rebuilding. The block has been bored so that it's a 331. I was considering putting a girdle on the bottom end to make the block a little stronger, so at least I'll have peace of mind. I found this one: http://www.americanmuscle.com/moroso...whatsinboxArea and it says that it was designed for 5.0 blocks. It will still work on my 331, right? Since it was a 5.0 block? What do you think? Thank you.