I have an 86 Suburban and I am looking for plugs to close the air pump holes in the exhaust manifolds. I have not had any luck finding them other than an oil drain plug for $4.75 and I need 8 of the things! Where should I be looking? Are they 7/8" 18 count threads or am I missing something?
<font face="Comic Sans MS">If you have trouble finding a plug for it, go to the hardware store. If the pipe plugs don't fit, buy a tap that'll work with the pipe plugs, and tap the manifolds to accept them. [img]/wwwthreads_images/icons/crazy.gif[/img] That's what I'd do anyhow. Also, I'd probably put a tiny little tack weld on each of them just to be sure they won't back out very easily... But that's likely not necessary. </font>
I tried the hardware store, farm supply, fastener places, farm equipment dealers, welding shops and auto dealers and none could help (other than the oil drain plugs0. This is not pipe thread it is a inverse flare fitting (I know because I had a guy tell me that....). I went to NAPA and they think they can order these for me. I'll let you know if they really can. I won't get them until Wednesday, then I'll have to get the thing back together... I'll write when I get done. I also had a suggestion from a mechanic friend that I weld the nuts closed and reinstall them... We shall see!
Dude, I have manifolds for 1979 305, if you think they would fit they are yours. You will need to only send a check for the postage on the box when you get it. Let me know, my profile has email link but I prefer private message because my antivirus software locks up my email now and then. I have pics of manifolds and will measure them. Frank