Exhaust Heat Shield Bolt size and Threads?

[boochieboy]

Could someone please tell me what size threads are on the four bolts that hold the exhaust manifold heat shield on? Also, what are the length of the bolts? I need to remove the shield so I can make a custom one but all four bolts are rusted solid so I can't get them out to get their size. Thanks in advance.

[oakrdrs187]

You can get them out, try PB Blaster a good soaking should do it.

[boochieboy]

I finally got them out. It took a torch, some seafoam "deep creep," stripped bolt extractors and a 16" breaker bar.....jeezus!
Just for reference, the bolts are M8 X 1.25 X .50"