Motor Mount Upgrade - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**tdangle** · 04-26-2019, 01:12 PM

70 C20 with a 350. Because I have the rod type accelerator linkage, if the motor mount breaks the throttle gets pulled open as the engine lifts. Is it possible to update the motor mounts to the newer clam shell type for safety?

**Wrenchbender Ret** · 04-26-2019, 02:34 PM

There are mounts with a safety brackets built in. This was a huge recall back in the day. The dealers installed a cable that hooked to the a-arm shaft to keep the engine from lifting up. The engine mounts after that had the built in brackets.
George

**michael bustamante** · 04-26-2019, 03:53 PM

I have one of those cable retention setups if you need one.
other than that you can swap to a 73+ clam style but you have to change the motor mount towers as well

**tdangle** · 04-26-2019, 04:25 PM

Quote:

Originally Posted by michael bustamante

I have one of those cable retention setups if you need one.
other than that you can swap to a 73+ clam style but you have to change the motor mount towers as well

PM Sent.

tj1970cst · 04-26-2019, 04:50 PM

I got prothane mounts for mine. They fit in place of old ones. They interlock inside. I removed the recall cable.

**Steeveedee** · 04-26-2019, 05:57 PM

Quote:

Originally Posted by tj1970cst

I got prothane mounts for mine. They fit in place of old ones. They interlock inside. I removed the recall cable.

That's right, there is an upgraded motor mount that interlocks, which removes the problem if the pad separates.

tj1970cst · 04-26-2019, 06:17 PM

7-509BL
is the prothane motor mount #

Your supposed to do trans mount as well. I bought energy suspension 3.1108G for that because it was cheaper than prothane.

04-26-2019, 01:12 PM	#1
tdangle Senior Member Join Date: Mar 2005 Location: Jurupa Valley, Ca Posts: 1,210	Motor Mount Upgrade 70 C20 with a 350. Because I have the rod type accelerator linkage, if the motor mount breaks the throttle gets pulled open as the engine lifts. Is it possible to update the motor mounts to the newer clam shell type for safety? __________________ Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC

04-26-2019, 02:34 PM	#2
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,193	Re: Motor Mount Upgrade There are mounts with a safety brackets built in. This was a huge recall back in the day. The dealers installed a cable that hooked to the a-arm shaft to keep the engine from lifting up. The engine mounts after that had the built in brackets. George

04-26-2019, 03:53 PM	#3
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,832	Re: Motor Mount Upgrade I have one of those cable retention setups if you need one. other than that you can swap to a 73+ clam style but you have to change the motor mount towers as well __________________ 1967custom

04-26-2019, 04:50 PM	#5
tj1970cst Registered User Join Date: Mar 2019 Location: Arlington, TN Posts: 170	Re: Motor Mount Upgrade I got prothane mounts for mine. They fit in place of old ones. They interlock inside. I removed the recall cable.

04-26-2019, 06:17 PM	#7
tj1970cst Registered User Join Date: Mar 2019 Location: Arlington, TN Posts: 170	Re: Motor Mount Upgrade 7-509BL is the prothane motor mount # Your supposed to do trans mount as well. I bought energy suspension 3.1108G for that because it was cheaper than prothane.



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