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Old Nov 25, 2019 | 08:49 AM
  #1  
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Motor Mounts

I am putting a Gen1 SBC 5.7 into my 1983 Z28. The engine side mounts I have are for a 1980 C3500, so they won't work. Where can I get replacement engine side mounts? I don't want to run solid mounts, and the mounts I found on Ebay are 60$ for a rusty pair. Any better options out there?
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Old Nov 25, 2019 | 09:43 AM
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Re: Motor Mounts

a rusty pair
Doesn't matter in the slightest, as long as they're the right ones for this chassis. It's a flat piece of rather thick sheet metal with 5 holes punched in it and bent into a shape. Clean off the rust and paint em. Don't even have to get em "real" clean; just knock off the loose stuff (if any) and use POR-15 or any of the competitive rust-incorporating paints, followed by black chassis paint.
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Old Nov 25, 2019 | 10:17 AM
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Re: Motor Mounts

I understand rusty ones will work fine, I just think 60$ is a little steep for that.
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Old Nov 25, 2019 | 10:31 AM
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Re: Motor Mounts

I just think 60$ is a little steep
We hear that sort of thing on this forum quite a bit for some reason.

Posting about "I want em cheeeeeper" on here isn't gonna do a damn bit of good. Either you want em or you don't. They cost what they cost. People who have stuff won't give it to you unless you give em what they want in exchange. Feel free to wait for them to "appear" magically for less. It's your time and your money and your project. Might want to check the classifieds on this site and see if anybody is parting out a car and will sell em for less.
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Old Nov 25, 2019 | 10:51 AM
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Re: Motor Mounts

If people want that much for a rusty piece of metal I'll just make them myself. The ones on ebay also don't have enough pictures for me to be sure they are the right ones and I'm not taking a chance on getting the wrong ones. And you don't need to be rude about it either, if you can't be civil I don't need your input.
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Old Nov 25, 2019 | 11:22 AM
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Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: Motor Mounts

Originally Posted by nicholasktu
If people want that much for a rusty piece of metal I'll just make them myself. The ones on ebay also don't have enough pictures for me to be sure they are the right ones and I'm not taking a chance on getting the wrong ones. And you don't need to be rude about it either, if you can't be civil I don't need your input.
He's right though. IF I needed a pair (I don't), $60 isn't that bad. I bill my time out at $100 an hour and no way I could "make" a set in 40 minutes.

GD
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Old Nov 25, 2019 | 11:28 AM
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Re: Motor Mounts

He probably is right (while being rude about it), but I do have square body truck mounts that I can modify. I also don't want to risk Ebay and get ones that don't fit.
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Old Nov 25, 2019 | 11:40 AM
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Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: Motor Mounts

I would ask in the classifieds.

GD
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Old Nov 25, 2019 | 11:42 AM
  #9  
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Re: Motor Mounts

l'll do that next. I'll pay 60 or so if I know they will fit. I might put a BMR K-member in, which has its own mounts.
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Old Nov 25, 2019 | 12:44 PM
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Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Re: Motor Mounts

If I needed 'em, I'd pay the $60, since I don't feel like searching the junkyards and then pulling them off a car myself. I would then bead-blast them to bare metal and paint them fresh with some chasssis black..
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Old Nov 25, 2019 | 01:26 PM
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Re: Motor Mounts

There is rude, to the point, short, curt, big ol meanie, etc. Sofa isn't rude. He's adding a stylistic flourish to entertain, and convey humor, light-hearted friendly ribbing, to make a mundane reply more fulfilling, and clear. It helps if you read his posts with a jovial overtone. Look at it that way and it makes a lot more sense why he'd take the time to help you, rather than to assume he's just being rude. If he were rude, would he even reply at all? Food for thought.

Study up on the topic, figure out which part number mounts you need (there are at least three part numbers for thirdgens) and make sure that the second hand mounts you're buying have the proper number stamped in them. That way you know what you're buying, and know they're going to work right. Otherwise just slap something together and when it works as well as something slapped together, you can post thread after thread about this really odd issue you're having, and you (along with the people helping you) will probably never think about the potential that your shop class motor mounts that saved you $20 don't correctly fit your car. Sometimes it's not worth trying to save $60.
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Old Nov 25, 2019 | 02:55 PM
  #12  
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Re: Motor Mounts

If I slap something together it will work as well as factory, and probably look better . I've done a lot of fab and design work, I do it for a living.
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Old Nov 25, 2019 | 02:57 PM
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Re: Motor Mounts

FWIW, from the 86 assy manual (LG4/LB9/L69). It appears that these P/N's did reach the production floor.

14039463 - Bracket Asm RH
334971 - Bracket Asm LH

Used or NOS are your options.
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Old Nov 25, 2019 | 11:36 PM
  #14  
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Car: 89 IrocZ
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Transmission: 700R4
Re: Motor Mounts

Go to pick and pull and grab a pair.
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Old Nov 26, 2019 | 06:47 AM
  #15  
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Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Re: Motor Mounts

Originally Posted by nicholasktu
If I slap something together it will work as well as factory, and probably look better . I've done a lot of fab and design work, I do it for a living.
Except that you need something to use as a reference. If you get the angle wrong, you could experience bad vibrations...
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Old Nov 26, 2019 | 08:08 AM
  #16  
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Re: Motor Mounts

Problem solved, gave a neighbor 10$ for a pair off a rusted out 1985. It had a 305 in it, they look like the right ones.
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