S speedy66 Founding Member Jun 20, 2000 629 0 0 glendale,arizona,usa Jan 23, 2004 #1 Jan 23, 2004 #1 what size bolt would you use to plug off the emissions on the e-7s?
kslushy Founding Member Jan 25, 2002 1,125 0 37 Jan 23, 2004 #2 Jan 23, 2004 #2 I've always heard you can use an old sparkplug with the ceramic broken off. Otherwise use 5/8"-11. You may have to clean out the holes in the heads, some have a lot of carbon buildup.
I've always heard you can use an old sparkplug with the ceramic broken off. Otherwise use 5/8"-11. You may have to clean out the holes in the heads, some have a lot of carbon buildup.
D D.Hearne New Member Sep 29, 2000 11,730 6 0 south louisiana Jan 23, 2004 #3 Jan 23, 2004 #3 There's a bolt thread insert that fits the holes and plugs them, the front of the heads have them.
