What bolt size for Mercruiser 260 engine stand?

[surferguy001]

as the title implies, what size bolts do i need to mount a 260 to this stand...
http://www.harborfreight.com/1000-lb-capacity-engine-stand-32916.html

i would like to know length, width, and thread. Or does anybody know where i can find this info? i have the manual but cant find it

 

[Bt Doctur]

Re: What bolt size for Mercruiser 260 engine stand?

You dont want much. It varies .bolts thread for GM is 3/8 x 16 NC. I use 6 inch bolts with spacers