Does anyone have the size of the bolts that hold the flexplate to the crank or the size of the bolts for the water pump?? Im assembling my motor today but because I started with a short block, I need to source many of the required bolts and these are the last two that I dont have the correct sizes for. Unfortunately the size isnt specified in the GM service manual.

Thanks!

 

anyone?

 

Water pump should have 6 8mm x 80mm bolts and the flexplate bolts are something special. They are a 11mm. So pretty much you can go factory or ARP...

 

perfect, thanks very much.....one more trip to the hardware store....