I got this rear mount in a box of random parts. I don't know what engine this is for.

Someone wrote M/T on it with a marker but I don't know if that's accurate.

I know it's NOT for a D-series manual because the mount is too big compared with the transmissions I have here.

Is this a B block? What is this? Thanks if you can help out.

 

I can tell you what it isnt. It's definitely not for a '99 - '00 Si. Looks like a '94 - '01 Integra mount to me.

 

So B16 in the Civic Si is out. Thanks.

Perhaps 94+ Integra B18?

 

That was my initial thought, but the more I look at it the more I'm thinking '90 - '93 Integra.