Engine Mounts

[LBZ]

Has anybody seen or used the new engine mounts Merchant has for sale?
Thoughts on these?

http://www.merchant-automotive.com/mahighperformancemotormounts.aspx

 

[JoshH]

They look good. I wonder what they'll cost.

 

[RPM Motorsports]

They look good! Im making a solid set for myself. I've got the jig done for the drivers side, just need to find a good pass. side mount to make a jig now.

 

[LBZ]

Lots of folk have been just bolting them, I would like to try something different. There was no price posted on the website. That would be an interesting number to see as well.

 

[RENODMAX]

Just remember if you soild mount that you have to solid mount everything else. Sorry for posting if you already know

 

[LBZ]

Just remember if you soild mount that you have to solid mount everything else. Sorry for posting if you already know

Such as........?

 

[WTF]

the trans and prolly transfer case

 

[juddski88]

in his thread on DP he said he's seen bolted ones stretch...i don't know how i'd manage to get a grade 8, 5/8" bolt to stretch...anyone else have this issue?

 

[fishsmith]

He told me the price should be comparable to what a stock set would cost. I'm not sure what that was though.

 

[TrentNell]

I called Merchants and inquired on a set a few weeks back , if i remember right the price was in the 3-400 dollar range , We can always use bigger bolts for free :angel: they look like a good part but more than i will pay untill i see signs of the bolted mounts failing in my own truck .

 

[RENODMAX]

Such as........?

Trans and transfercase. You'll break bellhousings etc if your motor doesn't twist but everything else does

 

[RPM Motorsports]

Just remember if you soild mount that you have to solid mount everything else. Sorry for posting if you already know

Actually, it's the other way around Jordan. Most Domestic "weekend warriors" that use their vehicles on the street/strip, use a solid on the drivers side. They leave the pass side and trans either stock or polly. Then the vibrations from the solid mount have somewhere to go, saving parts. It's used on the driver side, because thats the side that the motor is trying to lift. I had a customer bust three tail shafts on a T400. He changed to poly mount's on the trans and pass side, and never had another problem.

 

[Mike_S]

Actually, it's the other way around Jordan. Most Domestic "weekend warriors" that use their vehicles on the street/strip, use a solid on the drivers side. They leave the pass side and trans either stock or polly. Then the vibrations from the solid mount have somewhere to go, saving parts. It's used on the driver side, because thats the side that the motor is trying to lift. I had a customer bust three tail shafts on a T400. He changed to poly mount's on the trans and pass side, and never had another problem.

What was the setup that was causing the failures?

To anyone that is wishing to solid mount your drivetrain: If you daily drive your truck I STRONGLY recomend that you reconsider. An engine solid-mounted to the frame of your truck will be the noisiest most uncomfortable thing, and besides as others have stated, you can have a good strong mount without having it be solid. I myself plan on simply bolting my factory mounts, I only plan on about 700 HP with my build, but I like the redundency of the whole idea. I really hate breaking things.

 

[RPM Motorsports]

What was the setup that was causing the failures?

496 BBC with two stages, in a 73 Camaro. Even though it was caged and braced, it still had alot of body twist.

 

[Mike_S]

^^

Uh yeah, almost 500 cubes and lots of N2O will tend to break things. LOL!

 

[RENODMAX]

Actually, it's the other way around Jordan. Most Domestic "weekend warriors" that use their vehicles on the street/strip, use a solid on the drivers side. They leave the pass side and trans either stock or polly. Then the vibrations from the solid mount have somewhere to go, saving parts. It's used on the driver side, because thats the side that the motor is trying to lift. I had a customer bust three tail shafts on a T400. He changed to poly mount's on the trans and pass side, and never had another problem.

So if you solid mount your motor and leave everything else poly itll be ok? Or are you saying just put one solid mount on our driver side and leave the rest poly? I have muscle car buddies that have run solid mounted motors and cracked bellhousings because of them or thats what everyone thought anyway.

 

[RPM Motorsports]

If it's gonna be on the street, I would just do the drivers side. If you do both, I would keep the trans mt polly IMO.

 

[thedirtymax]

i was changing my oil the other day and i noticed one of the motor mount bolts that run parallel to the frame is missing! wtf!? maybe its from the southbend shutterin when i take of? i orederd a new one....now just gotta put it in.

 

[TheBac]

Those mounts arent solid. Eric had been thinking of doing these for a long long time. Good to see they finally came to fruition. They have poly cylinders between the pieces. (Yes, I looked at them up close last time I was at the shop). Very solidly-built pieces. He would like me to run them next year. He's been betatesting them in his shop truck and IIRC in another couple builds, and so far no problems. Youd have to ask him for particulars.


No Im not cheerleading....just stating what I know.

 

[JoshH]

The idea of the mounts is really nothing new; it's only new in the Duramax. I had a similar set of motor mounts in a Toyota truggy I used to have. This is what I used to make them. I only used one bushing per side, but it was a little 3.8 V6 so...