ClassicCar

hudson

I'm part way through getting some new parts for my 49 coupe. Since dad and I swapped in the hemi on center, the car has sat off to the drivers side a little. I'd like to get some reassurance on what I'm thinking is correct. And some advice on selecting some new coil springs.

Stock front spring is as follows according to the hudson shop service manual 1948-1952 and my measurements.

Outside dia: 5.5"

Coil dia: 0.75"

Spring rate: 386 in/lbs

Free height (pass side): 15.375"

Free height (drivers side): 15.75"

Height at ride height: 9.0625"

Now the manual doesn't jive with what I've always been told, that the passenger side spring is taller to compensate for the extra weight of the intake, ehxaust and part of the block hanging out over there.

Any ideas?

Hudson308

I would guess the driver's side coil would be longer, if there was a difference. Most drivers weigh considerably more than the intake/exhaust manifolds!!! With that being said, my '49 sits a bit lower on the driver's side, even without me in the car. Hmmm.... maybe it's the aluminum intake and header... yeah, that's it.

dave s

I would talk with an expert. we get our springs from http://www.espo.com/

Park_W

Also check out Coil Spring Specialties, in KS. Great folks, and they have all the data on Hudson coil springs. http://www.coilsprings.com. Park

dave s

Or you can use 1980's GM full size car springs. If front sits too high, cut off half of end coil and regrind the flat spot.

hudson

Thanks for the options fellas.

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