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View Full Version : what spark plug to use


john910
08-15-2011, 09:06 AM
i have a sbc with vortec heads what is a good plug to start with and what # plug . thanks for your help.

482
08-15-2011, 04:04 PM
I like the NGK plugs! JMO
I think NGK TR5 is stock replacement for gas. I think they have TR55 and TR6 for different heat ranges. May give you something to start with.
Some of the other fellows could help better on the small block stuff, I run 8's in a gas BBC

lanham
08-28-2011, 09:17 AM
I use NGK plugs too.