Spark Plugs h22 vs h23 - Honda Prelude Forum

Jape · 06-06-2002, 02:28 AM

Can anyone verify for me that the spark plugs from the h22 engines will fit in the h23's as well? Holla back!

The Acclude · 06-06-2002, 01:25 PM

from what Ive read, it appears as though the pzfr6f-11 , which is the recommended plug for service change interval periods on the h22a1 Is only a platinum.

The Zfr6f-11 is a copper plug which is the factory recommended plug for the h23a1.

I was gonna start using coppers, and the h23a1 reccommended plug supposedly works, as the part number is only a difference in the electrode material. If you have nitrous though make sure you get copper anyway!

(above numbers/letters are for NGK's)

Swordfish · 06-06-2002, 01:36 PM

Platinums not good for nitrous?

S/F

Eddiebx · 06-06-2002, 01:41 PM

Yah they fit perfectly fine! That's what I been running for awhile.

Ehh....I would stay away from platinum plugs, all they do better is last longer. Coopers conduct better anyway, oh and they cost like 10x less, hehe.

Eddie