Looking for a good SB spark plug

Posted By: flatiron

Looking for a good SB spark plug - 05/06/12 02:58 PM

The engine 360 .030 over kb190 pistons,Decked to 9.588 .509 cam/ Ported j heads with 2.02 intake plain old hooker tube headers. If my calculations are correct has a 12.5-1 compression and I'm running 50/50 mix of sunco 110 and pump gas 93. Total timing 34 degrees. Need to get a new set of plugs and wondering about a good choice. Any recomendations?

Posted By: rt66jim

Re: Looking for a good SB spark plug - 05/06/12 03:11 PM

RN9YC Champion.

Posted By: babarracuda

Re: Looking for a good SB spark plug - 05/06/12 03:17 PM

Autolite AR51

Posted By: flatiron

Re: Looking for a good SB spark plug - 05/06/12 05:31 PM

I should have said I wanna use a 5/8 wrench also

Posted By: flatiron

Re: Looking for a good SB spark plug - 05/06/12 08:43 PM

Posted By: Duster 371

Re: Looking for a good SB spark plug - 05/07/12 12:23 AM

Quote:

I should have said I wanna use a 5/8 wrench also

I use NGK #BCPR6ES...They use a 5/8 socket.

If you don't want a resister plug order BCP6ES.

Posted By: Cab_Burge

Re: Looking for a good SB spark plug - 05/07/12 12:28 AM

Quote:

I should have said I wanna use a 5/8 wrench also

Autolite AR3910

Posted By: Dartcuda

Re: Looking for a good SB spark plug - 05/07/12 12:53 AM

autolite 3923

Posted By: cbarracuda

Re: Looking for a good SB spark plug - 05/07/12 01:19 AM

autolite AR 3932 RACING 5 8 wrench

Posted By: dartman366

Re: Looking for a good SB spark plug - 05/07/12 01:27 AM

Quote:

Quote:

I should have said I wanna use a 5/8 wrench also

Autolite AR3910

thats what I have been using for a long time now.

Posted By: autoxcuda

Re: Looking for a good SB spark plug - 05/07/12 01:46 AM

Quote:

Quote:

I should have said I wanna use a 5/8 wrench also

Autolite AR3910

I switched from the Champion 5/8 version to the Autolite 3924.

The Autolites lasted longer for me. I do a lot of street driving.