1970 chevelle ss 454 front springs question - Chevelle Tech
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post #1 of 14 (permalink) Old Aug 30th, 19, 11:34 AM Thread Starter
 
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1970 chevelle ss 454 front springs question

I have a 1970 SS 454. Bought the car about 90% complete from a frame off restoration. The car bottoms out on the slightest wave or bump in the road. I think it has the wrong front springs. ( car now has tubular A arms and literally all the suspension and everything is brand new and tight. I took it to a shop and the guy is telling me that nobody makes the correct spring for that car. He is telling me that the SS has a unique spring set up. Told me we need to have them custom made. Can anyone give me some advice on what to do here. I'm looking at like $350.00 to have these springs made.

Thanks

Kevin
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post #2 of 14 (permalink) Old Aug 30th, 19, 11:46 AM
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Re: 1970 chevelle ss 454 front springs question

Are these springs "standard" coil springs or coil overs or what? Assuming you have a standard coil spring setup there's no reason that would require "custom" springs. I'd contact one of the various coil spring manufacturers and see what they have available.

It might be useful to determine the brand/manufacturer of the Lower Control Arms and call them to see what their recomendation for a spring would be.

Photos are always helpful.

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post #3 of 14 (permalink) Old Aug 30th, 19, 11:47 AM
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Re: 1970 chevelle ss 454 front springs question

"bottoms out" sounds like it needs better shocks.
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post #4 of 14 (permalink) Old Aug 30th, 19, 2:54 PM
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Re: 1970 chevelle ss 454 front springs question

Quote:
Originally Posted by Kevin Mohan View Post
I took it to a shop and the guy is telling me that nobody makes the correct spring for that car. He is telling me that the SS has a unique spring set up. Told me we need to have them custom made
that is absolutely 100% incorrect!!
Amazing what kind of nonsense people say.


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post #5 of 14 (permalink) Old Aug 30th, 19, 5:20 PM
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Re: 1970 chevelle ss 454 front springs question

I cannot help you with what you have, but when we went to work on the 70 conv in 1998, I went to O'Reilly and bought a pair of MOOG springs for a 70 with 454 and factory air. Although, our 70 has a SB400. I also added Gabriel rear air shocks for adjusting height as needed.

I really likes the way it sits and here is what we have with the 454 front springs and the air shocks at 5psi.
And our son's 68 4dr with a 350 and factory air on bone stock 68 springs.


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post #6 of 14 (permalink) Old Aug 30th, 19, 7:38 PM
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Re: 1970 chevelle ss 454 front springs question

There is a place called coilsprings.com that will build springs special to your vehicle's specifications, you just have to give them the information.

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We build each set of springs to your vehicle's specifications. We will need YEAR, MAKE, MODEL, ENGINE SIZE, TRANSMISSION TYPE, and A/C to put into account for each car we engineer for, as all these options play into the manufacturing of your springs.
Coil Spring Specialties | Classic Cars

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post #7 of 14 (permalink) Old Aug 31st, 19, 2:26 AM
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Re: 1970 chevelle ss 454 front springs question

That mechanic is a loon.
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post #8 of 14 (permalink) Old Aug 31st, 19, 2:35 AM
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Re: 1970 chevelle ss 454 front springs question

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Originally Posted by Dean View Post
"bottoms out" sounds like it needs better shocks.
Or steel skegs. I always wanted to fabricate some skegs to rip out speed bumps instead of drag my super comps over them.
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post #9 of 14 (permalink) Old Aug 31st, 19, 7:02 AM
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Re: 1970 chevelle ss 454 front springs question

Not really sure because you have tubular a arms, At my old shop when we changed a Chevelle over from a small block to a big block the car would sit to low in the front so we would change the front coil springs over to 68 to 72 Olds Vista cruiser wagon front coil spring and they would get the car back up where it needed to be.
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post #10 of 14 (permalink) Old Aug 31st, 19, 7:52 AM
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Re: 1970 chevelle ss 454 front springs question

This is a pic of a 68 Malibu that was a small block car now a 454 and tubular control arms with new springs for a BBC with A/C from NPD, don't remember price but NO where near $300 IIRC around $100 for both front springs, well my comp. has decided to only open pics by date now


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post #11 of 14 (permalink) Old Aug 31st, 19, 8:07 AM
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Re: 1970 chevelle ss 454 front springs question

Quote:
Originally Posted by Kevin Mohan View Post
I have a 1970 SS 454. Bought the car about 90% complete from a frame off restoration. The car bottoms out on the slightest wave or bump in the road. I think it has the wrong front springs. ( car now has tubular A arms and literally all the suspension and everything is brand new and tight. I took it to a shop and the guy is telling me that nobody makes the correct spring for that car. He is telling me that the SS has a unique spring set up. Told me we need to have them custom made. Can anyone give me some advice on what to do here. I'm looking at like $350.00 to have these springs made.

Thanks

Kevin
Kevin,

I'm pretty sure this is what's happening :

You're coil springs might be original and very tired. The tubular control arms have a "pocket" in the lower arm that lowers the car 2".

That is causing it to bottom out. You can look at the lower control arm and see the recessed pocket that lowers the spring.

I would install new stock front springs for a 454.

Less than $100 for the springs

https://www.chevelles.com/forums/16-...placement.html
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post #12 of 14 (permalink) Old Aug 31st, 19, 9:34 AM
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Re: 1970 chevelle ss 454 front springs question

they do advertise differant tublar control arms 1 for standard springs one for coilover u need to find out which u have.
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post #13 of 14 (permalink) Old Aug 31st, 19, 9:57 AM
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Re: 1970 chevelle ss 454 front springs question

SC&C has the springs you want.. Talk to Mark the owner, he's a breath of fresh air.. He's honestly in this to make your car handle and ride like you want..

https://scandc.com/?s=springs&post_type=product
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post #14 of 14 (permalink) Old Aug 31st, 19, 3:32 PM
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Re: 1970 chevelle ss 454 front springs question

The correct spring for your '70 BBC Chevelle is MOOG Part. No. 5450. I just bought and installed mine for less than $70.00 Here is some good info posted by someone on my recent thread...
https://www.chevelles.com/forums/16-...selection.html
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