Motor mount reccomendations - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Richard2112 · 03-28-2020, 05:20 PM

Having read numerous threads on motor swaps, various mount techniques and combinations of parts, I've learned more than I though there was to know about motor mounts. For example I discovered GM once had a problem with the drivers side mount separating and the throttle going wide open if the vehicle had a solid linkage as opposed to a cable. That's an interesting thing to learn since I believe the the mounts on my truck are probably original.

I am planning to install a 383 in my 70 C30 and would like to know that my mounts aren't likely to surprise me so they're due to be replaced. What I'm asking for is a recommendation on a good set. Any thoughts on this?

I was looking at these.. https://energysuspension.com/energy-...otor-mount-set and they're probably good but don't really know.

Could use some advise

**clay68c10** · 03-28-2020, 05:43 PM

Swap over to the square body style. You will have to get the frame stands and block mounted clam shells for it to work, but they can't separate. And they really isolate the engine vibrations better.

Richard2112 · 03-28-2020, 10:10 PM

Thank you for the response Clay. So If I am understanding correctly, a set of perches and clamshell mounts from...say a 74-maybe 87 would work? Same motor height?

Something like this maybe...https://www.lmctruck.com/1973-87-che...nt-and-bracket

Richard2112 · 03-29-2020, 12:39 PM

Having trouble finding the stands. can find the ones for 4wd on ebay but I don't know if they're the same.

1970ChevC10 · 03-29-2020, 01:05 PM

I used POL (ECM 6872) as my frame mounts and for the engine mounts I used Pronto EM-2885 from Jegs. I have a 70 C10 with a BBC 396, this may not apply to your setup.

**Getter-Done** · 03-29-2020, 01:13 PM

Here is the how to thread.

Link:http://67-72chevytrucks.com/vboard/s...ghlight=mounts

.

**chewychevy67** · 03-29-2020, 01:21 PM

If you use big block 72 type they should bolt in. My 67 frame is already powdercoated and I thought about changing but I have to file my frame back so I have thought about cutting the mount and taking an 1/8 inch or so out and bolting the upper part under the frame top so I don't have to mess up the finish.

**dmjlambert** · 03-29-2020, 01:32 PM

There is some interesting information in the thread where I asked the question about motor mount options
https://67-72chevytrucks.com/vboard/...d.php?t=795082

firedemon · 03-29-2020, 01:33 PM

https://www.performanceonline.com/19...-Brackets-V-8/

these are the ones I went with

Richard2112 · 03-30-2020, 09:46 AM

Thanks for all the help folks. I've changed motor mounts before but always used the stock replacement and never seemed to have a problem. Now when it comes to changing to a different type of mount, that gives me some difficulty. I have recently purchased these and going on logic alone, seems they should work in my C30 (2WD). I'll still need the upper shell half but it's the perches that concern me. I hope they'll work Much thanks again.

03-28-2020, 05:20 PM	#1
Richard2112 Registered User Join Date: Jul 2014 Location: South East Ohio Posts: 644	Motor mount reccomendations Having read numerous threads on motor swaps, various mount techniques and combinations of parts, I've learned more than I though there was to know about motor mounts. For example I discovered GM once had a problem with the drivers side mount separating and the throttle going wide open if the vehicle had a solid linkage as opposed to a cable. That's an interesting thing to learn since I believe the the mounts on my truck are probably original. I am planning to install a 383 in my 70 C30 and would like to know that my mounts aren't likely to surprise me so they're due to be replaced. What I'm asking for is a recommendation on a good set. Any thoughts on this? I was looking at these.. https://energysuspension.com/energy-...otor-mount-set and they're probably good but don't really know. Could use some advise

03-28-2020, 05:43 PM	#2
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,991	Re: Motor mount reccomendations Swap over to the square body style. You will have to get the frame stands and block mounted clam shells for it to work, but they can't separate. And they really isolate the engine vibrations better. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

03-28-2020, 10:10 PM	#3
Richard2112 Registered User Join Date: Jul 2014 Location: South East Ohio Posts: 644	Re: Motor mount reccomendations Thank you for the response Clay. So If I am understanding correctly, a set of perches and clamshell mounts from...say a 74-maybe 87 would work? Same motor height? Something like this maybe...https://www.lmctruck.com/1973-87-che...nt-and-bracket Last edited by Richard2112; 03-28-2020 at 10:27 PM.

03-29-2020, 12:39 PM	#4
Richard2112 Registered User Join Date: Jul 2014 Location: South East Ohio Posts: 644	Re: Motor mount reccomendations Having trouble finding the stands. can find the ones for 4wd on ebay but I don't know if they're the same. Last edited by Richard2112; 03-29-2020 at 12:51 PM.

03-29-2020, 01:05 PM	#5
1970ChevC10 Registered User Join Date: Aug 2014 Location: Stone Mills, ON Posts: 52	Re: Motor mount reccomendations I used POL (ECM 6872) as my frame mounts and for the engine mounts I used Pronto EM-2885 from Jegs. I have a 70 C10 with a BBC 396, this may not apply to your setup. __________________ 1965 Pontiac LeMans (convertible) 1968 Pontiac Firebird 1968 Ford F100 1970 C10 1992 GMC C1500 1998 Chevrolet C2500

03-29-2020, 01:13 PM	#6
Getter-Done Senior Member Join Date: Dec 2009 Location: TN. Posts: 8,444	Re: Motor mount reccomendations Here is the how to thread. Link:http://67-72chevytrucks.com/vboard/s...ghlight=mounts . __________________ ________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build

03-29-2020, 01:21 PM	#7
chewychevy67 Senior Member Join Date: Jan 2010 Location: Here Posts: 5,557	Re: Motor mount reccomendations If you use big block 72 type they should bolt in. My 67 frame is already powdercoated and I thought about changing but I have to file my frame back so I have thought about cutting the mount and taking an 1/8 inch or so out and bolting the upper part under the frame top so I don't have to mess up the finish.

03-29-2020, 01:32 PM	#8
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,885	Re: Motor mount reccomendations There is some interesting information in the thread where I asked the question about motor mount options https://67-72chevytrucks.com/vboard/...d.php?t=795082 Last edited by dmjlambert; 03-29-2020 at 01:37 PM. Reason: corrected the link

03-29-2020, 01:33 PM	#9
firedemon Registered User Join Date: Jun 2015 Location: @ Posts: 890	Re: Motor mount reccomendations https://www.performanceonline.com/19...-Brackets-V-8/ these are the ones I went with

03-30-2020, 09:46 AM	#10
Richard2112 Registered User Join Date: Jul 2014 Location: South East Ohio Posts: 644	Re: Motor mount reccomendations Thanks for all the help folks. I've changed motor mounts before but always used the stock replacement and never seemed to have a problem. Now when it comes to changing to a different type of mount, that gives me some difficulty. I have recently purchased these and going on logic alone, seems they should work in my C30 (2WD). I'll still need the upper shell half but it's the perches that concern me. I hope they'll work Much thanks again. Attached Images



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