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Old 11-27-2010, 12:57 PM
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1965 chevelle front spring swap

Guys, I have a '65 chevelle 300 deluxe with a 383 sbc. The problem is...it has the original 6 cyl front springs. I found a set from Classic Performance Parts that appear to be the stiffer V8 springs im looking for, but im not sure. The part number is FCS6200S. Also, I have 2" drop spindles in the front, does that mean I need drop springs as well to keep the nice stance? Please help if you can!

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Old 11-28-2010, 04:16 PM
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Quote:
Originally Posted by lngliv3
Guys, I have a '65 chevelle 300 deluxe with a 383 sbc. The problem is...it has the original 6 cyl front springs. I found a set from Classic Performance Parts that appear to be the stiffer V8 springs im looking for, but im not sure. The part number is FCS6200S. Also, I have 2" drop spindles in the front, does that mean I need drop springs as well to keep the nice stance? Please help if you can!
Me too. I put on 2" dropped spindles with stock V-8 springs and it still is way too high.
6 cylinder springs are stiffer I think. The 6 is a heaver motor?
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Old 11-28-2010, 04:47 PM
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6 cylinder springs are weaker, a straight six is lighter than a V8. Old drag race trick is to use 6 cylinder springs to lower the front to improve front end travel for more weight transfer.

All new springs will sit high for a bit, until they are used some and settle.

If you are looking for a stiffer spring to improve ride but want the same low stance you will likely need the lowering spring also, to equal the hieght of the old sagged out 6 cylinder spring when assembled.
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Old 11-28-2010, 05:27 PM
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I am looking into a set of 1.5" drop front springs. They are not toooo expensive, but im gonna add a bigger sway bar also to get rid of roll. It only hits in the corners.
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Old 11-29-2010, 01:05 PM
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Quote:
Originally Posted by ericnova72
6 cylinder springs are weaker, a straight six is lighter than a V8. Old drag race trick is to use 6 cylinder springs to lower the front to improve front end travel for more weight transfer.

All new springs will sit high for a bit, until they are used some and settle.

If you are looking for a stiffer spring to improve ride but want the same low stance you will likely need the lowering spring also, to equal the hieght of the old sagged out 6 cylinder spring when assembled.
So what do you think? Dropped springs or 6 cylinder springs, or how much will it settle in. I have aluminum heads which compound the problem.
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Old 11-29-2010, 02:00 PM
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6 cylinder springs will get you a lower ride height, but won't be that great from a handling standpoint if you are building for better than stock cornering. The stiffer but shorter drop spring is likely the way you want to go. It is always somewhat of a crap shoot with springs and ride height unless you work with the all the time and are familiar with a bunch of sizes. Good thing is that they aren't very expensive, but just a pain to swap in and out.
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Old 11-29-2010, 06:20 PM
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I spoke with a tech from classic performance parts today, and he said the 6 cyl. springs were in many cases a stiffer spring. He recommended i bring my offset in a good inch when I get my new wheels. He also mentioned that when you go from drum to disk brakes, it pushes the stance roughly 7/16" wider per side. He agreed to a stiffer sway bar and less offset on the wheels. Hey 65elco...stop hijacking the thread...
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Old 11-29-2010, 07:22 PM
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According to this site a straight 6 is from 40-55lbs lighter than a 70's small block.
http://www.35pickup.com/mulligan/weight.txt
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Old 11-30-2010, 08:28 PM
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Quote:
Originally Posted by lngliv3
I spoke with a tech from classic performance parts today, and he said the 6 cyl. springs were in many cases a stiffer spring. He recommended i bring my offset in a good inch when I get my new wheels. He also mentioned that when you go from drum to disk brakes, it pushes the stance roughly 7/16" wider per side. He agreed to a stiffer sway bar and less offset on the wheels. Hey 65elco...stop hijacking the thread...
What do you mean hijack. I'm trying to solve the same problem.
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Old 12-01-2010, 12:26 AM
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Google Eaton Springs website and you can talk to their tech people,tell them what you want and get it for less since many aftermarket springs are made by Eaton and resold thru vendors thereby you eliminate the middle man.
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Old 12-01-2010, 04:31 PM
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Thanks Jeff, I will try that tonight.
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