Not your average spark plug question??
09-10-2012, 10:05 AM
#1
Not your average spark plug question?? I have a 1999 Yukon with a 5.7L that my daughter blew up about 2-1/2 years ago by overheating it. We were able to put some head sealer in it and it has run ok the past two years till now. When she blew it up she also hurt two cylinders and they are now fouling plugs bad. I am going to try a hotter plug to try and keep them from fouling out being the cylinders are low on compression until I get a chance rebuild it.
My question is what plugs are two times hotter than the NGK TR55's and the Autolite 605's
My question is what plugs are two times hotter than the NGK TR55's and the Autolite 605's
09-12-2012, 11:28 AM
#2
NGK numbers lower is hotter so TR5 then TR4, and lower if you can find them.
Champion and i believe autolite is opposite, hotter is higher number.
look up on spark plug .com for plugs having equivalent reach and 14mm threads taper seat.
Champion and i believe autolite is opposite, hotter is higher number.
look up on spark plug .com for plugs having equivalent reach and 14mm threads taper seat.
Last edited by 1 FMF; 09-12-2012 at 11:39 AM.
09-12-2012, 12:00 PM
#3
just remember the hotter the plug the longer it is also. I remember asking a friend to get me two plugs for my 302 2 steps hotter and he went like 4 or 5 and then installed them. He blew out the tops of two of my pistons....then it was me that was hot. My poor motor 69 302 not easy to come by.
