2GR Height Alignment

Riverhead · Oct 1, 2025

When installing the rear engine mount using FMW's E351 narrow mount I noticed there's a vertical alignment issue. I know this mount has worked on countless other E351 2GR swaps so it must be something with my particular car/setup.

I tightened the mount down with the stock bolts to 38ft/lb and it snugged up without issue however I'm wondering if it would be better to install a spacer and use longer bolts.

Some notes:
1) All other mounting bolts are loose
2) The front mount is at full deflection (see photo)
3) Trans is an E351 from a Scion Xb.

Is it OK that I had to snug down that last 3/4"? It almost seems like the engine is sitting a touch too high in the bay.

Front Mount fully deflected:

Rear mount gap:

immorality · Oct 1, 2025

The motor is slightly rotated, so you can just crank down the rear mount, but it's probably a little better to use a jack and lift the front of the motor to rotate it a little bit, and then bolt it down.

SW20_Nate · Oct 1, 2025

What chassis side mount do you have in the rear? The E153 mount is something like 1/2" taller than the S54 mount. Otherwise what Russ said, crank those three mount bolts down.

Riverhead · Oct 1, 2025

@SW20_Nate that seems like exactly the issue. I have a '91 NA with the S54 and I suspect Marc made the E351 mount for a car that had the E153 since all his vids are from a turbo.

Given the front mount is already at full deflection (the engine is as rotated as far back as it'll go) I think I'll source an E153 chassis side mount versus compressing the side mounts. That 1/2" will make everything line up perfect.

Thank you!

2GR Height Alignment

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