CUTLASS 5658 vs. 5660 real world experience

64nailhead

Goat Herder
Supporting Member
Dec 1, 2014
3,307
113
Upstate NY
There a lot of factors and different setups - Nlazer spindles, aftermarket arms, etc. Getting car to handle is time consuming. I found in my sons’ scar that once we got the arm geometry decent that the biggest improvement was tires. A low profile 245 on a 17 with a little bit of camber made it very good. The car would corner well and travelled well. It also had Bilsteins, that were night day compared to any stock shock, and UMI rear bar and SS bay in front.

You mentioned your ride height in front, what is your engine trans combination (weight)?
 

403Olds

Master Mechanic
Thread starter
May 31, 2014
371
43
South Central Ohio
There a lot of factors and different setups - Nlazer spindles, aftermarket arms, etc. Getting car to handle is time consuming. I found in my sons’ scar that once we got the arm geometry decent that the biggest improvement was tires. A low profile 245 on a 17 with a little bit of camber made it very good. The car would corner well and travelled well. It also had Bilsteins, that were night day compared to any stock shock, and UMI rear bar and SS bay in front.

You mentioned your ride height in front, what is your engine trans combination (weight)?


Yes, it is interesting, I had put the 5658 on a few years ago at the recommendation of other posts I had seen. My car would benefit from 17's. I'm not sure the most economical way to get there but I've been eyeing the year one's, but wish the chrome Olds one's had black inserts for spokes.

My car is a 403/200R4 combination, with tall ball joints upper and lower, aluminum front and rear bumper supports, F body front sway bar, Hellwig rear bar, Grand Cherokee steering box, Blazer brakes, aluminum rear drums and now 5660/5413 springs. So it's decently setup to corner but at least it gives anyone that's considering a spring swap some back to back comparisons. Like every project car, it's never done, and keep looking for the next thing to try out.
 
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403Olds

Master Mechanic
Thread starter
May 31, 2014
371
43
South Central Ohio
I'm still doing 5664s next time
Cool, I'm interested to see how it works out.


I've driven mine to work that last two days, the ride is nice and firm, but not harsh at all. It's no stiffer than my wife's Edge, with 20" rims. I can see where stiffer springs might help out. I'm sure my 60 series tires softens the ride also, versus some 17's. This is how I'm going to roll for the summer.

Here's the ride height picture. Just slightly lower than stock height, 26" to the fenderwell openings
 

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