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#1 |
Registered User
Join Date: Apr 2007
Location: Sandpoint, Idaho
Posts: 178
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? about motor mounts
I am going to replace my existing 350 with a new 350 and need to replace the motor mounts. My question is do i get the early style "short and wide" motor mount that measures 2 5/8 in. between the ears and 1 3/4 in. tall to the center of the through bolt hole, or the "tall and narrow" motor mount that measures 2 3/8 in. between the ears and 2 3/16 in. tall to the center of the through bolt hole. Is one for a car and one for a truck or ? Thanks.
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#2 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: ? about motor mounts
the one with the bolt up through, is the early style. In 72 there was a recall due to those mounts breaking.
I think in 73 they went to the clamshell mounts, which bolts them together laterally. The later ones are much better in every aspect, but I am not sure what it would take to put them in your truck... I'd imagine later model engine towers would do the trick. Myself, if your old ones are good, I'd swap them to the new engine. |
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#3 |
Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: ? about motor mounts
I went with these mounts. Of course I didn't get the chrome ones, so they were cheaper. Fit great.....
http://www.performanceonline.com/sto...cat=455&page=1
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1997 GMC Sierra Ext 1965 Mustang |
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#4 | |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,335
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Re: ? about motor mounts
Quote:
Were they a direct bolt in or did you have to do some fabricating? What motor mounts did you use? harrdawg54 if you go for the ones longhornman is talking about make sure that the 3/8s bolt will fit in the mount. I ran 3 parts stores out of these because the company that made them tapped the hole for metric instead of 3/8.
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RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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#5 |
blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: ? about motor mounts
will the clamshell ones fit with ram's horn manifolds? I know with the later style bottom log type manifolds you have to have the clamshell mounts.
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#6 |
Registered User
Join Date: Apr 2007
Location: Sandpoint, Idaho
Posts: 178
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Re: ? about motor mounts
I don't have to worry about ram horns or anything like that, I have headers on the new motor. These are the mounts that I am thinking of using.
![]() The are Energy Suspension part number ENS-3-1120G and it includes both motor mounts and also the trans mount.
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1969 Chevy K20 Custom Camper 350, 4sp, 33's High on plans, Low on funds |
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#7 |
Registered User
Join Date: Apr 2007
Location: Sandpoint, Idaho
Posts: 178
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Re: ? about motor mounts
sorry the link for the pic didn't work here is what I am talking about.
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1969 Chevy K20 Custom Camper 350, 4sp, 33's High on plans, Low on funds |
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#8 | |
Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: ? about motor mounts
Quote:
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1997 GMC Sierra Ext 1965 Mustang |
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#9 |
User #12137
![]() Join Date: Apr 2004
Location: kingsport,upper east tenn
Posts: 11,598
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Re: ? about motor mounts
if your useing stock towers on the frame you will need to use these
http://store.summitracing.com/egnsea...115+4294861902 |
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#10 |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: ? about motor mounts
Hmmm- I went down to NAPA and asked for mounts for the 71.
Did I do something I'm going to regret? s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() |
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#11 | |
User #12137
![]() Join Date: Apr 2004
Location: kingsport,upper east tenn
Posts: 11,598
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Re: ? about motor mounts
Quote:
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#12 | |
go cyclones
Join Date: Jun 2003
Location: Ames, IA
Posts: 1,885
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Re: ? about motor mounts
Quote:
Last edited by JayDubBlazer; 03-13-2008 at 04:05 AM. Reason: missed puctuation |
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#13 |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: ? about motor mounts
Napa here also!!! Stock mounts for the 69 K truck
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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#14 |
Registered User
Join Date: Apr 2006
Location: Alabama
Posts: 794
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Re: ? about motor mounts
I'm almost ready to drop my motor back in as well and I need new Motor and tranny mounts. I am seeing a huge difference in prices, from the $90 summit sets above to about $30 I think for stock replacement from LMC or some others. Are the summit ones worth the extra cash? whats the difference? is it just rubber vs polyurethane bushings?
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#15 | |
User #12137
![]() Join Date: Apr 2004
Location: kingsport,upper east tenn
Posts: 11,598
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Re: ? about motor mounts
Quote:
i just go to napa and get reg motor mounts and trans mounts. but i do have a set of poly mounts for the 71 monty but its a long long ways away from getting a motor |
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#16 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: ? about motor mounts
poly mounts transfer a huge amt of vibration to the frame and body they're not all that great for a daily driver i had them once and chucked them in the garbage in less than 3months cause i couldnt see in my mirrors cause the truck was vibratin so bad a waste of money for me
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#17 | |
Account Suspended
Join Date: Sep 2005
Location: Monroe, WA
Posts: 3,815
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Re: ? about motor mounts
Quote:
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#18 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: ? about motor mounts
I agree X 2 on the poly mounts. Great for a strip/street vehicle or a truck doing heavy towing, but new stock mounts are fine for a driver.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#19 | |
Gone to greener pastures
![]() Join Date: May 2007
Location: Gateway to the Delta
Posts: 7,354
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Re: ? about motor mounts
Quote:
Just told 'em, "'69 1/2 T, 350." Installed without any problems.
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'69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck |
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#20 |
Registered User
Join Date: Apr 2008
Location: St Francis MN
Posts: 13
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Re: ? about motor mounts
Hi i am new here,I have a 69 chevy frame that is 2 wheel drive, and had a 6 cyl. engine with 4 speed. I am putting in a 350 v-8 with a tubo 400 auto. I have my engine and tranny in, not sure if i am using wright mounts. The right side is bolted in ,the left side is off. ? also dose anyone know if i am in the wright holes?
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#21 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: ? about motor mounts
You might want to look at starting another thread instead of threadjacking an old one... you'll get more ppl looking, and more answers.
Persnoally i have never had an issue with these old style mounts, but it seems a lot of people have, there was actually a thread about getting them to line up a couple days ago. I would say loosen it all up, and tsab it, then tighten it all down. As for location, yes, that looks correct if i'm not mistaken. |
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