1980 3.8 Cylinder Head Bolts

[rcull]

I am working on what should be a 1980 3.8 from a Century. The head casting is 25506293. I am having a problem finding a head bolt set. They are not torque to yield, and I believe there should be 3 lengths. Could someone give me the correct sizes for the bolts, and maybe a known good source?
When I search, I seem to get varying images.
Thanks

 

[TexasT]

More Information for PIONEER 851002

Not bolts obviously.

More Information for FEL-PRO ES72856

This one shows three sizes in the pic. No washers though they are listed too.

More Information for PIONEER S1018

Not sure if you are just putting it together and making it run or are going to put boost or other too it for some "send it" type action.
I'm guessing you didn't disassemble and are starting with a pile of parts but not sure.

I'd be trying to measure the threads on that block or just order up a set of what I posted(bolts not the $200 studs) and see how it goes. Let us know how you make out!