NGK plugs in stage II heads

[StageII86]

Currently using the AR472's, but feel that overall they lack in many areas. I'd like to try a higher quality plug. Doing a search in this forum on this topic, I found a few people recomend an NGK BR7ES plug. Is this a tapered-seat design that will work in a stage II head? Anyone have any experiene with it on a big turbo'd, big cammed, stage motor?

TIA,
John

 

[10SV6]

See if this might help.

http://home.att.net/~ngkaz/wsb/Racing_Plugs2.xls

 

[StageII86]

Cool, awsome x-ref chart on that site. Anyone else?

 

[10SV6]

Huh ? Was there something corrupt in that link I posted ?

 

[StageII86]

No, it DL'd an excel sheet on NGK's line of race plugs and their specs. However, I went back to the same site and got the cross reference spreadsheet, very valuable as well. Thanks.

Oh wait, the other reply (deleted) was to the porn spammer that invaded TB.com late last night. It replied to every thread (including this one), posting a link to a nudy celeb banner.

Anyone else care to share any plug info from YOUR cars?? Surly not everyone is running Autolites...

 

[John Wilde]

Champions have worked for duttweiler.
He might use the denso units now.