Looking to get part # PZFR7F-11 or PZFR7F but seems they have been discontinued... anyone know a very similar plug, or where I can possibly find these? Thanks

 

Why do you want those plugs? Those aren't the stock plugs anyways?
Here is all the different part numbers for any prelude motor.



If that isn't want your looking for I don't know where to find those others.

 

I need colder plugs.

I guess a better question I have, Do you know a good cold plug for a high compression h22

 

o **** I never came across that pfr7g-11 part number while searching online... thanks for the info.

 

Most of the people I know running high compression setups are using stock plugs as far as I am aware of. Maybe q16racer will chime in. Its all about tuning to avoid predetonation..to an extent anyways. E85 helps a lot too.

 

wow I never realized the h22a took double platinum(3247 denso brand) I was always using the g power ngk's. Ima have to pick up the double platinum denso now since they're cheaper than the ngk's. The ngk's oem's are actually the laser platinum.

 

to the op you can call jegs to purchase them and they will ship them toyou. I have been ordering them or the last few years. Yes its better for bigger motors and a better spark.

 

I had problems finding the ZFR7F-11's through any parts store, but Honda can get them because they're a factory part