are champion plugs still ok for flatheads??

[no more]

Hi guys, I was chewed out by a guy in the Lincoln Zephyr group, said we all should use Bosch plugs...that my champ h-10s which have been h-10c's for about 15 years

are not any good for ford/lincoln low tech flatheads. I use them with no problem..but

he seemed really convinced....said that they were "reengineered for aircooled"..sounds kinda

silly to me..am I missing something ..

jeff booth

Toledo ohio

lzoc 1232

[Mike Cullen]

My Zephyr (36) is currently surviving quite nicely on a set of Autolites. (I used them because of the non-cad plated base) The Champion H-10, H-10C are also fine. (I think that the later ones use H-12C) If you are being judged use the non-cad based plugs, or polish the plating off and use gun-blueing to make the bases black. As far as the Bosch being any better "because they were designed for... blah, blah, blah..." (I read that thread too, sounds like the line of poo-poo that a factory saleshole would be encouraged to use to push his line) Bovine excrement! as long as they are non-resistor plugs, of the correct heat range and gapped properly, you will be fine.

[mlander]

My old source for Lincoln 1938, Ford 1937, Graham 1936, Mercury 1939, Chrysler 1936 states that Champion H10s were in use in 1937. Another thing just try to find a Bosch catalog to find out just what Bosch plugs are and all the heat ranges etc, etc are!!! I have catalogs for Denso and NGK but have failed completely on finding a Bosch catalog for old cars. Now if I could find a catalog for Bosch just to find out what they are up to with their plugs it would be different. I would like to meet this guy and find out just who and what he works for I wouldn?t even be answering this message.

Yours M.L. Anderson

H-10 CAMPARISION TO AC, DENSO, NGK & AUTOLITE

SPARKPLUG MAKER THREAD

SIZE THREAD

REACH HEAT RANGE

NUMBER HEXAGON SIZE

CHAMPION

H-10 14mm 7/16?(.437?) # 10 13/16?

DELCO AC

44L 14mm 7/16??(.437?) #4 13/16?

DENSO

W16LS 14mm 7/16? (.441?) # 16 13/16?

NGK

B6L 14mm 7/16? (.438?) # 6 13/16?

AUTOLITE

216 14mm 7/16?? #6 13/16?

Note the lack of a Bosch sparkplug!!!

[mlander]

All Sparkplugs are 14mm by 7/16? reach by 13/16? hexagon

Sparkplug

Champion?CHAMPION...?AC??..AUTOLITE

OLD H9??.RH8C??...?45L?..?..4316 & 216

OLD H10??RH10C?????......?4616 & 216

H11?????????...??..?..?...4616 & 216

H12?????????....?..?.???4316 & 216

In regards to zeffer1940;

Stock #7519 is a WR10FC which is a 14mm by1.25mm pitch thread by # 10 heat range by 3/8? reach by Copper which is the replacement for a ?J? series Champion sparkplug and not an ?H? series sparkplug. The ?H? series sparkplug is 7/16? reach.

M.L. Anderson

[mlander]

For more on this subject go to ,"Lincoln Zephyr Owners Club", under,"Bosch Did us a favor".

M.L. Anderson <img src="http://forums.aaca.org/images/graemlins/smile.gif" alt="" />

[mrpushbutton]

Champion spark plugs are NOT OK for anything.

AC, Autolite, NGK are much better