I am currently under going rebuilding a 420A engine and I am having a hard time finding the bolts that fit in the top threads. The 2 bottom ones are straight through with no threads and the tops have threads. A 10mm goes right through and I tried 3 different types of 12mm and they do not fit. I also tried standard and no luck.

Please help me find out this simple yet so complicated problem.

so many things wrong in this thread... 1st, wrong section

Thanks for your input, but doesn't fix my problem.

I'm trying to mount the engine to the stand.

this has been asked before, it's m12 x something. m12 might be wrong. search.

Originally posted by charlieshobbies
Thanks for your input, but doesn't fix my problem. I'm trying to mount the engine to the stand.

Finally you mention what exactly you are attempting to find bolts for. Asking for the top bolts means nothing.

And if you search, you would find this post, http://forums.2gnt.com/dcboard.php?az=show_topic&forum=5&topic_id=130421&mode=full

If the holes do not have threads, then you need nuts to secure them.