Third Generation F-Body Message Boards - what spark plugs for my vortec build?

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Gsoleski

04-09-2013 01:14 PM

what spark plugs for my vortec build?

I'm wondering what you guys recommend for a good vortec head spark plug. I know they need to be .708 reach but what about temp ranges and gap? I have a 355 with dished pistons, .045 quench, 59cc chamber, and about 10:1 compression. This is my daily driver too.. Any help is appreciated

86LG4Bird

04-09-2013 01:44 PM

Re: what spark plugs for my vortec build?

Autolite 104 or NGK TR55.
Those are regular copper plugs.

If you want platinums, someone else will have to help you. I run my stuff hard, so I don't use them.

Edit: Assuming your ignition system is up to OEM standards, run an .045" gap

midias

04-09-2013 02:09 PM

Re: what spark plugs for my vortec build?

http://www.jegs.com/i/NGK-Spark-Plug...673-7/10002/-1

NGK R5673 work great

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