Engine Engine Mounts - Rubber vs Poly

Mustang5L5 · Nov 16, 2020

What's the go-to for engine mounts these days? Many older threads list buying OEM Ford mounts, but those are long gone. ALl we are left with are cheap parts store mounts, and poly mounts.

Looks like there is only one manufacturer of the stock style mounts. (Even LMR says this). so do I stick with something like this..

Mustang Heavy Duty Motor Mount Kit (84-95) 5.0 - LMR

Upgrade your motor mounts to the more desirable 1984-1995 Mustang heavy duty mounts for better support with this Heavy Duty Motor Mount Kit!

lmr.com

Or do I go with a poly engine mount like this? The energy suspension mount mimics the convertible style mount.

Motor Mount - Ford Mustang - Energy Suspension 4.1122

Ford Mustang Thunderbird Cougar Continental replacement Motor Mount made by Energy Suspension. 2 Year Warranty. Free Shipping. Part Number 4.1122

www.energysuspensionparts.com

I can get them from Rockauto.com for $175 shipped with the 5% discount. However, I can also get $15 stock rubber mounts like the LRS mounts.

I will be running a stock-style OEM trans mount with both. My use of the car is strictly street cruising, so debating which ones would be the best to go with here. $175 for poly, or $30 for OEM-style rubber.

dgollem · Nov 16, 2020

Strictly Street cruising spend the $30.00 on the rubber mounts and use the rest for gas. If anything the poly mounts will transfer more vibration to the chassis. My 2 cents worth.

Mustang5L5 · Nov 16, 2020

dgollem said:
Strictly Street cruising spend the $30.00 on the rubber mounts and use the rest for gas. If anything the poly mounts will transfer more vibration to the chassis. My 2 cents worth.

SInce i made the original post and now, i've done some research on the OEM-style mounts available and have read nothing but terrible reviews. Holes drilled in the wrong spots and such. Pioneer 602725 and 602726 seem to be the "best" of the OE style rubber out there, and their reviews are quite terrible.

Reading reviews on the energy suspension mounts, it doesn't seem too harsh....would like some feedback from those who went rubber to the energy suspension parts.

I ended up buying both styles on Amazon. I'll compare in hand and see how they mount up and just return the ones I don't use.

Potomus Pete · Nov 16, 2020

Steel LMR solids. Bad reputation , but I like them. No vibration, and you feel the road and the power. Plus they raised my motor about two inches. Only fourty bucks. If you dont like them throw them in a bucket or CL em. I have stock tranny mount.

Mustang5L5 · Nov 16, 2020

Raising the motor is a non-starter. With my intake spacer, i'm already close to the stock hood blanket. I need to swap to the vert mounts.

Either way, I ordered both and will return whichever one doesn't sweet talk me into keeping them.

Potomus Pete · Nov 16, 2020

Vert mounts are one inch higher , are they not?

Mustang5L5 · Nov 16, 2020

Potomus Pete said:
Vert mounts are one inch higher , are they not?

lower than hardtop mounts

all 92 and 93s got the vert style mounts

Essn95 · Nov 16, 2020

I have the energy red poly mounts and I notice no difference in NVH from my dad's 94 with intact rubber mounts. It is hard to get a direct comparison as my car has more suspension mods so I cannot speak to the "performance" benefit but they work fine and the fitment is perfect.
I had the part store cheap rubber version. They simply did not fit. We spent an entire day to no avail and decided to dish out the extra cash for the poly. They went in without a problem. That alone makes them worth it to me, shouldn't have to clearance replacement mounts. and plus, they look pretty under there!

Dan02gt · Nov 16, 2020

I have the auto parts store vert mounts. I installed them when I first got the car 4 years ago and have had no issues with them. They did drop the motor a little bit over the stock 91 mounts. From what I can remember I had to do a little bit of grinding to get them to fit right.

Steel1 · Nov 16, 2020

I used stock replacement vert mounts from Rock Auto when we did my 393 build.
They definitely helped to lower the engine a bit but the drivers side locating dowel wouldn't line up
with it's corresponding hole.
It finally agreed to locate itself after many cuss words , pry bars and beating !

Monkeybutt2000 · Nov 17, 2020

Stock replacement mounts here as well.I think I had to grind off one of the locating tabs but other than that no issues.

elarm1 · Nov 17, 2020

I have solid mounts. on my vortech'd 306. No complaints here. I like the gyration of the car at idle!

ebone84 · Nov 17, 2020

I just changed mine energy suspension engine and trans sits up nice and straight .... I’ll have the car started in a week but I’m quite sure I’ll be happy with them ....the rubber ones did seem flimsy

ebone84 · Nov 17, 2020

One of the bolt holes engine mount was stripped now I have to heli coil or time sert the stripped threads

KRUISR · Nov 18, 2020

I have Prothane engine and tranny mounts. No complaints and no issues installing (from what I remember), 3 years and 12,000 km later.

7991LXnSHO · Nov 18, 2020

ebone84 said:
One of the bolt holes engine mount was stripped now I have to heli coil or time sert the stripped threads

Into steel, I would use a helicoil. Another car group I belong to debated which was best to repair aluminum block threads for head studs. A machinist did destruction testing on various repair gadgets into aluminum, and the Timecert was the strongest. But with sideways (sheer) force rather than pulling forces on this bolt hole, steel to steel seems like a better choice. Besides, no electrolysis will be involved.

ebone84 · Nov 19, 2020

Thanks..... ordered a thread chaser..... hopefully I can clean them up just to get a little bite ...

pats91 · Nov 19, 2020

I've had the Energy Suspension engine and trans mounts on my car since 2002, unsure of how many miles they have now. I don't have any complaints.

nickyb · Nov 20, 2020

Solid mounts from blue oval industries, got over 100k miles on em, no problemos

Mustang5L5 · Nov 21, 2020

Both sets came in. The ES pieves are nice and heavy and well made. The parts store mounts seem cheap. They don’t even fit well. Both sides will need tweaking just to bolt onto the engine. One even looks like it was used.

if I could get oem Ford rubber mounts, I’d likely run those. But I can’t

fortunately I bought the rubber ones on Amazon so back they go. I’ll be using the poly

Engine Engine Mounts - Rubber vs Poly

Mustang5L5

That is…until I whipped out my Bissell

Mustang Heavy Duty Motor Mount Kit (84-95) 5.0 - LMR

Motor Mount - Ford Mustang - Energy Suspension 4.1122

dgollem

Mustang5L5

That is…until I whipped out my Bissell

Potomus Pete

I'm still waiting for the fully nude shots

Mustang5L5

That is…until I whipped out my Bissell

Potomus Pete

I'm still waiting for the fully nude shots

Mustang5L5

That is…until I whipped out my Bissell

Essn95

Dan02gt

mazing how much gas smell came from that tiny hole

Steel1

Mustang Master

Monkeybutt2000

Mustang Master

elarm1

ebone84

Attachments

ebone84

Attachments

KRUISR

7991LXnSHO

wanna catch the space herp

ebone84

pats91

nickyb

I gotta say i never painted my nuts, Never Ever

Mustang5L5

That is…until I whipped out my Bissell

Similar threads

Engine Engine Mounts - Rubber vs Poly

That is…until I whipped out my Bissell

That is…until I whipped out my Bissell

I'm still waiting for the fully nude shots

That is…until I whipped out my Bissell

I'm still waiting for the fully nude shots

That is…until I whipped out my Bissell

mazing how much gas smell came from that tiny hole

Mustang Master

Mustang Master

Attachments

Attachments

wanna catch the space herp

I gotta say i never painted my nuts, Never Ever

That is…until I whipped out my Bissell

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