Engine: DoubleCheck spark plugs

[57 Silver Hawk]

Several years ago,I bought a set of brand new "DoubleCheck 35" spark plug from eBay online for my '57 Hawk 289. It seems like antique product. Have you heard that name? They are good quality?

Thanks, Steven

1957 Studebaker Silver Hawk
1967 Corvair Monza Coupe w/110hp, auto & factory air
1969 Corvair Monza Coupe w/140hp, 4spds & smog air

[StudeRich]

Yes they were made by Champion, and a #35 is the same as H-14Y, they were packaged by Lloyd for Pep Boys Auto Parts, a West Coast Auto Parts Chain.

You most likely bought them from me on ebay, I have ran them for about 24 years in all my Studes. with no problem, and I have more.