NGK tr5 and 6 cross ref

[Russ Merritt]

Looking for the same NGK TR5-6s only with a gasket instead of tapered seat. Same heat range, projected tip, resistor plug. Not sure if they make em or not.

 

[Russ Merritt]

Found what I was looking for with this...

http://www.in.net/~eholman/ngkplugs.html

NGK TR5 = BPR8ES or Autolite 3923.