Spatk Plugs

[fleming442]

Are there any plug experts out there? I've been looking, and coming up short, literally. I am currently running Autolite 3922s which are spoda be equivalent to NGK BCP7ES or AC FR1LS (superceded). I want to go 1 step colder per my engine builder's recommendation, but can't seem to find the right one. I ordered some NGK BP710s (Scummit substitution for BP8S), but I need the extended tip (haha) for aluminum heads. What ya got? Thanks!

 

[TURNA]

NGK BCP8ES is one step colder

• AC Delco 41XL
• AC Delco R41XLS
• Accel 112
• Aston Martin 07-22846
• Autolite 4053
• Autolite 4251
• Autolite 51
• Autolite AR51
• Beck Arnley 176-5086
• Beru 14R-5DU
• Beru UX56
• Beru Z47
• Bosch 0242245552
• Bosch W4CC
• Bosch WR5DC
• Bosch WR5DC+
• Bosch stk 7530
• Brisk 1413
• Brisk 1458
• Brisk LR12YC
• Brisk LR12ZC
• Champion 339
• Champion N2C
• Champion N6YC
• Champion OE116
• Champion OE116/T10
• Champion OE116T10
• Champion RN4YC
• Champion RN6Y
• Champion RN6YC
• Champion stk 315
• Champion stk 805
• Champion stk 904
• Denso 4136
• Denso 5316
• Denso 5713
• Denso IW01-24
• Denso IW24
• Denso W24EPR
• Denso W24EPR-U
• Denso W24EPRU
• Denso stk 4136
• Eyquem 0911007137
• General Motors 5613161
• General Motors 5614070
• Honda 98079-58847
• Iskra FE95CPR
• Kawasaki 920701044
• Kawasaki E92070-1044
• Kawasaki E920701044
• Lodge 25HL
• Mercury 828943
• Motorcraft AGR12
• NGK stk 3923
• PAL (Brisk) LR12YC
• Splitfire SF6A
• Suzuki 09482-00239
• Suzuki 09482-00240-111
• Yamaha 90793-20062
• Yamaha 94700-00219
• Yamaha 94701 00219
• Yamaha 94701-00219
• Yamaha 9470100219

 

[TURNA]

 

[fleming442]

Damn, where you find all that? I've been looking for 2 days

 

[TURNA]

Xhamster

Tons of info on that site

 

[fleming442]

Xhamster

Tons of info on that site

Yes, there is, but not SPARK plugs!

 

[TURNA]

Hmm must have been another type of plug I was thinking of..........

 

[Supercharged111]

I noticed that chart doesn't have AC Delco on it. Cryptic mfers.

 

[fleming442]

It still doesn't help because I can't find NGK 8 range extended tips. Then, i saw something that said an R means racing, and the heat range goes the other way! So confusing!

 

[spidereyes455]

I always thought the R in a plug # meant resistor.