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len
02-11-2006, 10:46 AM
Any recomendations for plugs for a 1955 speedster with original engine. Thanks Len

JDP
02-11-2006, 11:13 AM
Spark plugs are the "Third rail" of forum discussions. I like Champion, but have had good luck with Bosch too.

Studebaker On The Net http://stude.com
64 GT Hawk
64 R2 4 speed Challenger
63 R2 4 speed GT Hawk
63 Daytona Convert.
53 Street rod

imported_n/a
02-11-2006, 01:28 PM
I've been wondering about this, too. JDP, which Bosch will work in Stude 259 or 289 V8s? Thanks.

Roscomacaw
02-11-2006, 06:11 PM
Champion H-14Y (tough to find by that number now.) Champion #91 is the replacement. OR Autolite 437

Frankly, I've not had a better or worse view as regards brands. If a particular product is persistently faulty, the market will see to it's downfall in no time.
That's not to say that I'd cheerfully accept Duong-Ha brand as easily as Champion. I'm talking the well-known, established brands.:D

Miscreant at large.

1957 Transtar 1/2ton
1960 Larkvertible V8
1958 Provincial wagon
1953 Commander coupe
1957 President 2-dr
1955 President State
1951 Champion Biz cpe
1963 Daytona project FS

N8N
02-11-2006, 06:48 PM
Bosch equivalent is WR9FC although if you try to look up a Stude in a Bosch book it will tell you there's no application. I am running them in my car now, although I've also used the Autolite 437s. Both work well. I just used the Bosch because that's what the parts store had in stock that day (I'm kind of prejudiced against Champions, esp. in cars of unknown history/ring integrity as they tend to stay fouled once fouled.) The Bosch are a hair shorter in reach than the others, but I didn't bother to check a spare head to see which actually fit better. I previously had tried some W8AC in my '62 but they were too long in reach, the threads were projecting into the chamber (could feel the carbon dragging when I pulled them to look at them)

One thing I would not recommend is platinum plugs, especially Bosch. The regular Bosch Supers are great plugs but the plats can't be fouled, period.

nate

--
55 Commander Starlight
62 Daytona hardtop
http://home.comcast.net/~njnagel

N8N
02-11-2006, 06:52 PM
oh yeah forgot to mention, if you look at the interchange list on my web site (see sig) it actually grew out of my desire to find a Bosch number for spark plugs, believe it or not. After doing lots of research into heat ranges, reaches, etc. we have the mess that is up there now :) I managed to waste lots of time and create lots of work for myself just so I can buy tuneup parts on sale. But there is some good info on spark plugs there (hotter, colder, etc.)

nate

--
55 Commander Starlight
62 Daytona hardtop
http://home.comcast.net/~njnagel

curt
02-12-2006, 10:31 AM
I have Bosch #7519 and took out Champion# H18Y. My understanding is, the Champion H14Y is a cooler plug than the H18Y. The Auto store matched H18Y and gave me the Bosch 7519. I also see WR10FC on the Bosch box. I think the WR9FC is one heat range cooler.

N8N
02-12-2006, 04:16 PM
I believe you are right. H18Y = WR10FC and H14Y = WR9FC. Both of the Bosch numbers are resistor style plugs, FWIW.

nate

--
55 Commander Starlight
62 Daytona hardtop
http://home.comcast.net/~njnagel