well when i had this block shipped it seems that it got damaged by ups or something but the o rings were extremly uneven...we tryed to still install the headgasket and put on the head..after we did this we performed a leak down test but cylinder number 2 and 3 are leaking.Obviously its due to the o ring and now i need to replace them..does ne body know what gage they are..i know 18 is to big so im guessing its 20 but am wondering if ne one here know..thank you
ps:there aebs sleeves 84 mm

 

You did a leak down on a brand new engine before it was ever ran ?

http://www.goldeneaglemfg.com/includ...INGINSTALL.pdf
http://www.goldeneaglemfg.com/index....ouont2qmq3n2d1

 

https://honda-tech.com/forums/drag-racing-36/how-remove-install-copper-o-rings-2760988/ I just did mine but I forgot the gauge, but I did buy the roll form golden eagle. Only one size

 

it's .040 maybe 0.41 copper wire. I just bought a 1 pound spool of it to keep in stock.

 

.040 copper wire

you can pick it up in the picture framing section at home depot or lowes, they usually have it.

 

thank alotys we finnally got it to seal right with some industrial 18 gauge(.40) and down here in so fl the copper wire out of the picture frame section measured 42-43 for some reason