LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Prothane engine mounts done!

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Old 10-21-2006, 11:44 AM
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Prothane engine mounts done!

Not the nightmare I thought it might be, but I can see where it would be a problem for guys with A/C. mAN GETTN RID OF THAT HAS BEEN SO HELPFUL
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Old 10-22-2006, 12:50 PM
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Re: Prothane engine mounts done!

I still have mine sitting on top of the tool box... I'll put them on.. eventually.
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Old 10-23-2006, 10:05 AM
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Re: Prothane engine mounts done!

Originally Posted by 2000GTP
I still have mine sitting on top of the tool box... I'll put them on.. eventually.
+1, mine been on the shelf for 2 years now..
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Old 10-23-2006, 10:16 AM
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Re: Prothane engine mounts done!

I have them, and I hate them. The car rattles like a fiend now... I'm just gonna deal w/ them b/c I like the extra header clearance they gave me and the fact that they're strong.... but if I could do it all over again I would have probably bought fresh stockers.
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Old 10-23-2006, 01:28 PM
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Re: Prothane engine mounts done!

Originally Posted by Javier97Z28
I have them, and I hate them. The car rattles like a fiend now... I'm just gonna deal w/ them b/c I like the extra header clearance they gave me and the fact that they're strong.... but if I could do it all over again I would have probably bought fresh stockers.
Just curious, do you have a poly trans and torque arm mount as well? I heard that if all of the mounts are poly and not mixed, the vibration is not nearly as bad. Of course, this is speculation and I don't know if it is fact or not.
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Old 10-23-2006, 01:50 PM
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Re: Prothane engine mounts done!

I've heard the same. I've got a poly trans mount sitting in my garage waiting to go in when I get a chance. Hopefully that will help some.

The rattling is ridiculous as it sits. I might look into the torque arm mount as well.
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Old 10-23-2006, 02:03 PM
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Re: Prothane engine mounts done!

Weird, I have poly engine mounts and my stock tranny mount and the car doesnt rattle at all....
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Old 10-23-2006, 02:13 PM
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Re: Prothane engine mounts done!

Originally Posted by Silvershark
Weird, I have poly engine mounts and my stock tranny mount and the car doesnt rattle at all....
I have a pretty hefty cam
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Old 10-23-2006, 02:16 PM
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Re: Prothane engine mounts done!

So do I...

GM847
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Old 10-23-2006, 02:19 PM
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Re: Prothane engine mounts done!

Oh.. dunno then..

Didn't shake rattle and roll before I did them... crazy how all these cars respond differently.
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Old 10-23-2006, 02:20 PM
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Re: Prothane engine mounts done!

Defiantly. Every car is different. My friend never has a problem putting in his longtubes, I swear my engine bay is 1" smaller all the way around. Getting them headers in/out is a chore.
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Old 10-23-2006, 02:25 PM
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Re: Prothane engine mounts done!

Originally Posted by Silvershark
Defiantly. Every car is different. My friend never has a problem putting in his longtubes, I swear my engine bay is 1" smaller all the way around. Getting them headers in/out is a chore.
I hear ya, it seems every 4th gen I work on has it's own personality. I had the exact set of headers on my 93 that I have now on my 97 (I mean they are the same set!!) and they went in ALOT easier into the 93 than they did into the 97.
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Old 10-23-2006, 03:06 PM
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Re: Prothane engine mounts done!

Don't forget most aftermarket torque arms come with the poly mount...rather than buying one separately
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Old 10-23-2006, 03:58 PM
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Re: Prothane engine mounts done!

Originally Posted by Javier97Z28
I have them, and I hate them. The car rattles like a fiend now... I'm just gonna deal w/ them b/c I like the extra header clearance they gave me and the fact that they're strong.... but if I could do it all over again I would have probably bought fresh stockers.
I gotta be honest, the car feels exactly the same on the road at normal operation and just a little vibe at higher engine speeds. Overall I'm very pleased. The main positive is that I got rid of the x-pipe tapping the floor on take off.
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Old 10-23-2006, 03:59 PM
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Re: Prothane engine mounts done!

Originally Posted by 2000GTP
Just curious, do you have a poly trans and torque arm mount as well? I heard that if all of the mounts are poly and not mixed, the vibration is not nearly as bad. Of course, this is speculation and I don't know if it is fact or not.
As a matter of fact I do. However, I'm in dire need of replacing the tranny mount again.
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