What's the gap for plugs on a 390, 2 bbl??

 

.035 if memory serves correct.

 

Positive? Schucks gave me 45's, that's what came up in their computer.

 

here's the url M1lion one of the administrators here posted from the manual. Looks like .035 is right.

http://mil1ion.clubfte.com/67-72EngineTune-upSpecs.html

 

Thanks, appreciate everyone's help.

 

Those specs are for a Ecoline......

 

that's including an econoline. they hold true for all 390 truck motors.

Dennis

 

Thanks. Appreciate the help.

 

np, I think you'll find this site is a great resource. It sure has helped me alot in working on my truck. Anything I can do to give back to this forum.

Dennis

 

just send me a check i will get it to the right place

 

I installed a hotter ignition system and a Pertronix kit on my 390. Plug gap is at .045 and no probs. Just had smog test and passed so well, I went home and had a beer to celebrate. (New rebuild).

 

Running a larger gap will give you a hotter spark, right? Probably didn't hurt when you passed the sniffer. Does it make your engine run hotter?

I'll have a beer to help you celebrate.

Dennis

 

You guys have to smog your trucks? Here in So.Cal. we're exempt up to '73.

Barry

 

hehe, I feel sorry for them, though, my dad had to pass the sniffer when he lived in Reno, NV and it passed with flying colors. Little octane boster helps, BTW.

Dennis

 

Here in Nv we have a yearly test, although the requirements for older trucks are quite lax. As long as they dont smoke and emit too much CO they will pass. When they give you the results, you can look at the numbers and see at what end of the limits your motor is running at. If you're in the buying mode, its worth the 20 bucks to see exactly what condition the motor is in. Numbers dont lie. (Very much)