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Mikey Likes It

05-15-2007 07:37 AM

500 EFI Spark Plugs

What is the best spark plug to use for the 500EFI? Also what should the gap be for the plug?

Thanks,

Mike

Sydwayz

05-15-2007 09:10 AM

NGK BPR8ES is what is called for in the manual. The gap is stamped on top of the motor.

Strip Poker 388

05-15-2007 01:05 PM

also MR43t standard AC marine plugs. the NGK will be cheaper

Donzi38ZXXX

05-15-2007 02:27 PM

I Use The Extended Tip R43TS - Gap Should Be .035

Strip Poker 388

05-15-2007 03:19 PM

I run the AC42ts in my 500efi whipple motor. The 43 or the #6 should be good

Spark plug cross referance

http://www.dragstuff.com/techarticle...reference.html

Mikey Likes It

05-15-2007 03:20 PM

What do the extended tips get you? Are there any draw backs to using the extended tips?

Strip Poker 388

05-15-2007 03:21 PM

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