[Sammy B]

'67 Lemans. The left manifold is only about 1/8" away from the frame. I have about 1/2" of clearance on the right side. The 326 fit in there better, but it had the log manifolds. Would changing the motor mounts help that? I used the same ones that were on the 326 since they looked to be in good condition.

[Sammy B]

Come to think of it, when I striped the front end down, I remember that my motor mount plates (part that bolts to the frame) were different sizes. The plate on the driver's side was only about 1 1/2" tall. The plate on the passenger side was about 2 1/2" tall. I just figured that this is how they did it, and didn't think much of it, but could this be why I don't have any clearance on the driver's side? Are the mounting plates supposed to be like this??? They look stock, but I don't get why one would be taller than the other -- especially since the motor mounts themselves bolt up to the engine at the same height on the block.

[HWYSTR455]

Do the valve covers seem to be at the same height? Like is the engine level in the bay? I'm not that familiar with 66-67s, so I can't say for sure on the frame mounts. Someone else will chime in though, I'm sure.

I probably would have replaced the rubber mounts regardless if they looked good or not. Figure might as well if you're in there.

Also, aren't the f-body and the a-body manifolds different? That might make the difference you're seeing. You have part numbers for the manifolds you have in there?

.

[Sammy B]

Yeah, the engine sits about perfect other than that left manifold being too close to the frame. You're correct, there are different RA exhaust manifolds for Firebirds and GTOs. Mine are the correct part though. Appreciate all the help!

[Tempest]

The mount is taller on the drivers side.

[Doug]

Originally Posted by Tempest

The mount is taller on the drivers side.

If Tempest's photo shows a correct setup, it appears that the taller plate goes on the driver side and by your description, you have the driver side being the shorter plate. Did you reverse the plates when you mounted them?

Do these type motor mounts allow for any adjustment for "shifting" the motor side to side?

Is the engine "square" to the car? Check the tranny/crossmember to see if there is any side-to-side adjustment possibility. Is the crossmember mount proper thickness/worn?

I suspect that new motor mounts would help some. Also, spacing up the tranny rear on the crossmember will help some.

As to your basic question, my opinion is that the brake line is too close in any case and I would just go ahead and re-route it for ample clearance.

Another thing I would check out is what happens when the engine torques up and rises on the driver side? Will that cause the manifold to hit the frame?

[72LuxuryLeMansLa.]

Originally Posted by Doug

If Tempest's photo shows a correct setup, it appears that the taller plate goes on the driver side and by your description, you have the driver side being the shorter plate. Did you reverse the plates when you mounted them?

Do these type motor mounts allow for any adjustment for "shifting" the motor side to side?

Is the engine "square" to the car? Check the tranny/crossmember to see if there is any side-to-side adjustment possibility. Is the crossmember mount proper thickness/worn?

I suspect that new motor mounts would help some. Also, spacing up the tranny rear on the crossmember will help some.

As to your basic question, my opinion is that the brake line is too close in any case and I would just go ahead and re-route it for ample clearance.

Another thing I would check out is what happens when the engine torques up and rises on the driver side? Will that cause the manifold to hit the frame?

In my opinion the brake line is too close because the engine is mounted incorrectly. I would take care of the mounts before moving factory lines. If they are correctly located the engine should be moved........'67 GTO had factory installed RA manifolds, if the LeMans has the same brake line routing, and I suspect it does, RA Manifolds should not be a problem.

Karl