naa spark plugs

[tooltimejim]

I posted I was having a bit of a miss on the jube, I switched out the old champ h-12 (4 YRS OLD), installed new AL-437 PLUGS, Now she purrs very smooth. I will watch the new plugs for any fowling.

what is the popular plug now days for the naa engine?? I sure do like the new AL-437'S

THANKS,Jim

 

[edhOH]

I've been hanging around here for a number of years and that plug seems to be the consensus. I too just switched my jube over to 437's and it purrs nicely.

 

[old]

437 are the plugs most say to use now days and those fit the N series all the way up to the 601/801 series. See what happens when you take to heart what one says LOL

 

[tooltimejim]

Old, I trust what you say,and I appreciate all the help you have lend to me over the years. thanks,Jim

 

[tooltimejim]

amazing what a plug change can do, thanks Jim

 

[souNdguy]

I agree.. the al 437 is probably the most reccomended plug for the pre 65 4 cyl gassers.

soundguy