new engine mount q's.
 

327 engine...c10 ..Bought some new engine mount at my local auto parts store. (Anchor) nothing was wrong with my old ones just had this engine off for a yr and was installing today with the new mounts.. my problem is that a line everthing up but the center bolt just get snug i try tightening some more then just releases. Is this norm? Its does this on both mounts... I just got it snug and throw in some lock tite. But thing I should replace them with the old ones...any idea s. :smoke:

Re: new engine mount q's.
 

My new mounts were threaded for metric in that center hole.

Re: new engine mount q's.
 

I went back to the auto parts store to check that out with a 10mms since I had none.. with a new mount they had there but the 10mms did not fit. And the 3/8 did.. I had no tools.. people stated this in the other threads as well about the metric difference...can of lam since I just installed it.. just to pull it out..

Re: new engine mount q's.
 

I'm pretty sure that hole is not 3/8-16, it's 7/16-14

Re: new engine mount q's.
 

Did you chase the threads in the mount before installing them? Mine were full of rubber flash.

Re: new engine mount q's.
 

You are correct....7/16-14

Re: new engine mount q's.
 

Thanks guys. I took it out first thing this morning. And tryed tightening it with it out with the 3/8 but it bottom and kept spinning... so I chased it out with a 7/16 tap and ran a 7/16 bolt and it got tight. Problem fixed...engine mounts installed now with 7/16 bolt.. I did tap with a 3/8 tap before I installed it the frist time. And I did try a 7/16 bolt but the bolt didn't want to go in.. o well got fix that's all I care about.. thanks for the help..

Re: new engine mount q's.
 

In case others hit this, I too wound up with reproduction mounts that had too-long, metric center bolts. Had to cut them down so they didn't punch into my block, and no idea why they're metric, but...