LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super
View Poll Results: Would you buy a set of poly motor mounts?
Yes - power to the ground is awesome !!
16
84.21%
No, I need the money for my spaceship.
1
5.26%
Maybe, if I get permission.
2
10.53%
What!?!? There's nothing better than squishy mounts !!
0
0%
Multiple Choice Poll. Voters: 19. You may not vote on this poll

Full Poly motor mount set... Prototype

Thread Tools
 
Search this Thread
 
Old Jun 14, 2015 | 12:26 PM
  #41  
GXP25's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

Originally Posted by x11 nut
Just so we're clear that's $150 per mount.. Trying to get the set of 3 for $400.

The polished dog bone is more rigid as well as cosmetic, but shouldn't be necessary with 3 lower poly mounts - stock dog bone will be fine unless the cosmetic is the important part.

You want to be first in line ??

Cheers
Provided there's no noticeable change in ride quality, then yes, I'd be in for a set.
Reply
Old Jun 20, 2015 | 02:47 PM
  #42  
GXP25's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

Update?
Reply
Old Jun 21, 2015 | 02:55 PM
  #43  
x11 nut's Avatar
Thread Starter
12 Second Club
10 Year Member
iTrader: (3)
 
Joined: Feb 2011
Posts: 383
Likes: 0
From: S. FL to Philly ??
Default

First run is being made now. They made a mold so that they make both mounts at once - for pouring the poly mix, so they will be sold in pairs. I've asked that they keep the front mount seperate &/or double it in the mold so we can get just front mounts (cast poly version of one I make) or a complete set.

The front mount still has to be prototyped for a cast model. The side and rear mount pair should be ready in a few weeks.
Reply
Old Jun 21, 2015 | 03:25 PM
  #44  
91parkave's Avatar
Moderator
15 Year Member
iTrader: (4)
 
Joined: Feb 2008
Posts: 2,079
Likes: 9
From: Arizona
Default

Before they cast the lower I would have them seriously consider lower the front Mount point and raise the rear the same amount this slightly clocks the motor and trans forward. Similar to how the shorter dog bone concept is but not as extreme.
Reply
Old Jun 21, 2015 | 03:42 PM
  #45  
x11 nut's Avatar
Thread Starter
12 Second Club
10 Year Member
iTrader: (3)
 
Joined: Feb 2011
Posts: 383
Likes: 0
From: S. FL to Philly ??
Default

Unfortunately I have already paid for the molds for the first two, so it would mean starting over completely. The side and rear were fabricated to match my front mount which is lower than stock, but still uses stock dog bone length. With them all being poly there will be very little movement....

Cheers!
Reply
Old Jun 21, 2015 | 08:09 PM
  #46  
Sint3k's Avatar
TECH Fanatic
 
Joined: Jun 2007
Posts: 1,316
Likes: 3
From: Dolla$ , TX
Default

Originally Posted by x11 nut
Unfortunately I have already paid for the molds for the first two, so it would mean starting over completely. The side and rear were fabricated to match my front mount which is lower than stock, bhut still uses stock dog bone length. With them all being poly there will be very little movement....

Cheers!
Can I pay now, what order am I :x
Reply
Old Jun 21, 2015 | 08:20 PM
  #47  
91parkave's Avatar
Moderator
15 Year Member
iTrader: (4)
 
Joined: Feb 2008
Posts: 2,079
Likes: 9
From: Arizona
Default

My dog bone is shorter know by about @ 1/2 inch bolt hole to bolt hole. Only reason I ever shortened it up was after looking at a aviation grade digital level on the block with valley plate removed. Its when I noticed the motor was slightly tilted rearward in all brand new minus my poly trans mount. Just food for thought man.
Reply
Old Jun 21, 2015 | 08:51 PM
  #48  
x11 nut's Avatar
Thread Starter
12 Second Club
10 Year Member
iTrader: (3)
 
Joined: Feb 2011
Posts: 383
Likes: 0
From: S. FL to Philly ??
Default

Originally Posted by Sint3k
Can I pay now, what order am I :x
I want to have them in hand before I take any payment - too much crap goes wrong when holding someone else's cash... But I will let you know as soon as they are ready.

Cheers!
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jun 21, 2015 | 08:55 PM
  #49  
x11 nut's Avatar
Thread Starter
12 Second Club
10 Year Member
iTrader: (3)
 
Joined: Feb 2011
Posts: 383
Likes: 0
From: S. FL to Philly ??
Default

Originally Posted by 91parkave
My dog bone is shorter know by about @ 1/2 inch bolt hole to bolt hole. Only reason I ever shortened it up was after looking at a aviation grade digital level on the block with valley plate removed. Its when I noticed the motor was slightly tilted rearward in all brand new minus my poly trans mount. Just food for thought man.
Thanks man, will see how it all fits with last mount...

Cheers
Reply
Old Aug 24, 2015 | 08:40 PM
  #50  
x11 nut's Avatar
Thread Starter
12 Second Club
10 Year Member
iTrader: (3)
 
Joined: Feb 2011
Posts: 383
Likes: 0
From: S. FL to Philly ??
Default

I finally have the first batch of cast poly mounts! It is the rear and side trans mounts, still waiting for sample of front mount.

I'd like to give first shot to anyone that bought my front mount, so you'll have a full set.

The mounts are high quality stainless steel and cast poly = last mounts you ever buy for your LS4. $150 each plus shipping and any PayPal fees, etc.
Reply
Old Aug 24, 2015 | 08:42 PM
  #51  
x11 nut's Avatar
Thread Starter
12 Second Club
10 Year Member
iTrader: (3)
 
Joined: Feb 2011
Posts: 383
Likes: 0
From: S. FL to Philly ??
Default




Rear mount on left. Side trans mount on right.


Reply
Old Aug 25, 2015 | 07:11 AM
  #52  
91parkave's Avatar
Moderator
15 Year Member
iTrader: (4)
 
Joined: Feb 2008
Posts: 2,079
Likes: 9
From: Arizona
Default

Pm sent
Reply
Old Aug 25, 2015 | 10:28 AM
  #53  
superglide9375's Avatar
TECH Enthusiast
 
Joined: Oct 2013
Posts: 611
Likes: 0
From: hagerstown,md
Default

pm sent
Reply
Old Sep 5, 2015 | 04:33 AM
  #54  
GXP25's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

They look great.

Any deal for buying all three (front, rear, and transaxle)?
Reply
Old Sep 6, 2015 | 07:43 AM
  #55  
x11 nut's Avatar
Thread Starter
12 Second Club
10 Year Member
iTrader: (3)
 
Joined: Feb 2011
Posts: 383
Likes: 0
From: S. FL to Philly ??
Default

Originally Posted by GXP25
They look great.

Any deal for buying all three (front, rear, and transaxle)?
Waiting to see what the front mount comes in at. The low volume & being hand made keeps the price up, plus the company requires they be made/ sold in pairs. I had the side and rear done as a joint mold so I could get the front done as a double - this will allow me to offer just the front mount or a complete set.

Cheers
Reply
Old Jul 23, 2020 | 11:44 AM
  #56  
Jaygxp's Avatar
Teching In
 
Joined: Jul 2020
Posts: 2
Likes: 0
Default Motor mounts

Originally Posted by x11 nut
I finally have the first batch of cast poly mounts! It is the rear and side trans mounts, still waiting for sample of front mount.

I'd like to give first shot to anyone that bought my front mount, so you'll have a full set.

The mounts are high quality stainless steel and cast poly = last mounts you ever buy for your LS4. $150 each plus shipping and any PayPal fees, etc.
please cont

Last edited by Jaygxp; Jul 24, 2020 at 09:25 AM.
Reply
Old Dec 13, 2020 | 09:07 PM
  #57  
Travis Ray's Avatar
Teching In
 
Joined: May 2020
Posts: 1
Likes: 0
Default ls 4 solid engine mounts

Hello i am trying to find where to buy those solid LS4 mounts mainly the front ones.
Reply
Old Dec 22, 2020 | 11:32 AM
  #58  
dezldave961's Avatar
Teching In
 
Joined: May 2006
Posts: 33
Likes: 0
From: VA - formerly NY, MI, MN, FL
Default

Originally Posted by Travis Ray
Hello i am trying to find where to buy those solid LS4 mounts mainly the front ones.
This was quite old, so not sure what is still available.

Just did the DIY version on my Turbo 3800 car, and may look at my GXP's in the future when it's getting some TLC.


You could also do the full polyurethane pour-style (see other YouTube videos for reference). If you're customizing your setup, it's always fun to get even more custom when you can get it right.
Reply




All times are GMT -5. The time now is 07:42 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE