You need to do a search here and really do your homework b/c there are alotta variables that figure in here.
Some use stock BB A/C springs, others use aftermarket from MOOG and still others use Eaton Spring to make ones they want.
The critcal thing is what the weight is on the frontend??
Some guys scale each front wheel to know exactly.
AND some guys use, short roundy-round springs from AFCO and adjustable spring buckets so they can adjust their front height anytime they want to.
I used MOOG #5536 springs that were rated at 488 pounds, but I first clock cut them to match my original BB A/C springs and then cut exactly one coil off the open end b/c my frontend isn't stock anymore for my 496..
Looking back at it, I wished I woulda went buckets and short springs..
One last point, fwiw, my original F-41, 350SS front springs are said by GM Canada Tech. to be rated at 337 pounds. Some say 327??
pdq67
