Poly motor mounts - should I get trans mount also?
Thread Starter
Instructor
Joined: Aug 2011
Posts: 153
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Poly motor mounts - should I get trans mount also?
I'm going to install the Energy Suspension poly motor mounts when I put the 350 back in my 69. The motor will be hotter than stock and I'll be running a high rise intake (Weiand Stealth - Classic 8016) with the stock SB hood. The reason I am going with poly is to prevent the air cleaner from getting into the hood under torque. My question is should I ALSO get the poly trans mount to go with this or will I be fine running the stock rubber mount? My car is a 4 speed.
I want to achieve the goal of protecting the hood but keep added vibration to a minimum. My thoughts were that if I ran a rubber trans mount maybe I could reduce vibration somewhat? I'm not sure how much the trans mount acts to prevents torquing so I am looking to others for insight.
I want to achieve the goal of protecting the hood but keep added vibration to a minimum. My thoughts were that if I ran a rubber trans mount maybe I could reduce vibration somewhat? I'm not sure how much the trans mount acts to prevents torquing so I am looking to others for insight.
Burning Brakes
Joined: Feb 2001
Posts: 929
Likes: 5
From: Marietta GA
I run a ES poly trans mount on my big block and it has been fine. I'd recommend it. I will say this though that my headers partially melted my ES motor mounts. I am using heat shields on both sides to protect the mounts and this has worked. I used the shields intended for a car with A/C.
Thread Starter
Instructor
Joined: Aug 2011
Posts: 153
Likes: 2
Thanks for the info. What heat shields are you talking about? My car is an A/C car but I don't recall a shield being on there. Just the shields for the spark plugs as they routed under the ram's horns.
Last edited by Dkarr; Mar 30, 2012 at 09:53 AM.
Burning Brakes
Joined: Feb 2001
Posts: 929
Likes: 5
From: Marietta GA
Look in the Corvette parts catalogs. They may be just for big blocks. Not sure. But there are heat shields for the motor mounts on A/C equipped cars, at least for my '68 and I'm sure for other years. I bought two of them (even though they only list it for one side) and put one on each side. Solved my problem 100%.
Last edited by BB68Vett; Mar 30, 2012 at 10:42 AM.
