Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas hood - Team Camaro Tech
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post #1 of 11 (permalink) Old Mar 11th, 14, 08:00 AM Thread Starter
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Alex
 
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Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas hood

Hi folks,

once again i need a little advice...

Right now i have a 350 SBC and a fiberglass hood. No AC or other heavy stuff.

I want to lower the front about 2", but not more. Since i also ordered Hotchkis Shocks i have to decide between Hotchkis Springs 1907f (for SBC) and 1906f (for BBC).

But here's the clue - i will swap my 350 for a 496 with aluminium heads next winter. So i was searching for weight differences between SBC and BBC - here's what i found:

SBC iron heads: 575 --> actual combo
BBC iron heads: 685
BBC alum heads: 610 -> combo next winter

So now i have a difference of 45 pounds between my 350 and the future 496.

And here's the thinking: with my carbon fiber hood, the 45 pounds are (almost?) gone.

This brings me to the conclusion that i should buy the SBC springs for the 496, since i assume, that the springs are rated to stock engines (without aluminium heads).

Is that right? I just want to avoid buying new springs and sitting too low after installing the 496.

Thanks in advance!
Alex

68" Camaro RS - one of the few in germany
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post #2 of 11 (permalink) Old Mar 11th, 14, 09:18 AM
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Tom
 
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Smile Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

Call Hotchkis and ask them !

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #3 of 11 (permalink) Old Mar 11th, 14, 05:15 PM
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Garth
 
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Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

I think you nailed. I would be opting for the SBC springs based on what you described. I think Hotchkiss will tell you to use the small block spring with BBC and aluminum heads.

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post #4 of 11 (permalink) Old Mar 11th, 14, 05:21 PM
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Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

Quote:
Originally Posted by 69L48Z27 View Post
I think you nailed. I would be opting for the SBC springs based on what you described. I think Hotchkiss will tell you to use the small block spring with BBC and aluminum heads.
x2. The springs don't care what engine you have, just how much weight you have up front. I'd go with the 1907's.


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post #5 of 11 (permalink) Old Mar 11th, 14, 08:27 PM
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Ron
 
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Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

I have the 2" drop springs with a aluminum headed bbc. Sits perfect.

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post #6 of 11 (permalink) Old Mar 12th, 14, 02:03 AM Thread Starter
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Alex
 
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Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

Perfect, thanks a lot for your comments.

I did contact Hotchkis and they told me to go with the 1907, but i was looking for some real life experience - so thank you!

I just ordered them and i'm looking forward to install them (not so much the installation, but the result )

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post #7 of 11 (permalink) Old Mar 12th, 14, 04:24 AM
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Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

Quote:
Originally Posted by wrekki View Post
I just ordered them and i'm looking forward to install them (not so much the installation, but the result )
Cool. I'd hate to know how much shipping was on those. If I recall, they were like trying to carry a hundred pound wet noodle.

Good luck with the install, post some pics for future reference.


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post #8 of 11 (permalink) Old Mar 12th, 14, 06:17 AM Thread Starter
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Alex
 
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Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

Jap, shipping to germany is always a bit of a mess... but i hope this time, i-parcel helps me to keep everything smooth.

Shipping costs? Let's say - without the € being this strong ATM, it would kill me

It will take some time tills it's over here and installed but i'll keep you updated.

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post #9 of 11 (permalink) Old Mar 12th, 14, 07:01 AM
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Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

And if you go just a bit too far (like I did) you can put in a pair of these to bring it back up 1/2 inch. Ad says 3/4 to 1/5 inch, but that's bs.

http://www.ebay.com/itm/1964-81-CHEV...28963b&vxp=mtr

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post #10 of 11 (permalink) Old Mar 12th, 14, 11:42 PM
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Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

Quote:
Originally Posted by wrekki View Post
Perfect, thanks a lot for your comments.

I did contact Hotchkis and they told me to go with the 1907, but i was looking for some real life experience - so thank you!

I just ordered them and i'm looking forward to install them (not so much the installation, but the result )

Your welcome!

69 Camaro
491/AFR 315'S/Straub hyd roller
TH400/GV OD
9" 3.50
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post #11 of 11 (permalink) Old Mar 13th, 14, 10:10 AM
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Eric
 
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Re: Hotchkis front springs 1907 or 1906 - bb alum heads and fiberglas

I had a SBC motor in my car but wanted a 'level' stance. I called Hotchkis and they told me the only difference was a 1/2inch drop between the springs. The spring rate is identical which is supposed to be 600lbs/in. I ended up with the BB springs. The car has since been converted to a LS and is much lighter in front the stance is higher but it is actually more level and not higher in the front so either way you should only see a 1/2 inch difference between the springs.
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