I looked at Autozone.com and they list DV435 for '54 Belair and '58 Belair with 235. They list DV501 for '55-'57 Chevy with 235. $18 for the ..435 and $16 for the ..501.
You can buy a whole new distributor for $38 and it probably comes with a vaccuum cannister!


Tradin' up dimes for nickels...
'`'`'`'`'`'`
My \'65 Chevy C-20