Spark plugs for 215 mileage maker

I got a 215 inline six that I need some help with finding the right spark plugs for....Anyone know offhand which plugs I should use?

Thanks.

 

Rockauto.com should have them listed, then take that number down to the parts house.

Word of warning, my motor has the large size plug, and the catalog lists the small size. Don't know if it is my motor or the catalog that's wrong. I used plugs from a flathead v8 and they worked. Just bring an old on in with you to compare.

 

H10 (or H10C or 844) Champion

 

ok cool....

 

thanks squirrel