Spark plugs

[biggfish]

What spark plugs do you all like best? I have always used bosch in all my cars.

 

[cam3439]

I have been using the Bosch +4 Platinum-Iridium Fusion spark plugs for 2.5+ years now and the engine still runs really smooth. I used Bosch before and decided to put these on the hoe.

 

[Thumper8302]

+1 ON THE BOSCH...... been lookin at those pulsars or pulstars whatever u callem.... prolly gonna stick with the Boschs since i been usin them along time especially since those pulsars are $15 a pop

 

[cam3439]

I don't really know about those pulstar's because we installed a set on a friend's 5.3L Monte Carlo SS and when we took out a few after like 3-5k they really looked like crap. They looked excessively worn, and that was with a motor that only had 15k on it. So he opted to go with a set of Bosch plugs.

 

[Thumper8302]

I don't really know about those pulstar's because we installed a set on a friend's 5.3L Monte Carlo SS and when we took out a few after like 3-5k they really looked like crap. They looked excessively worn, and that was with a motor that only had 15k on it. So he opted to go with a set of Bosch plugs.

well then u def sealed the deal for me then..... sounds like they might make a good plug for a lawnmower ha ha ha

 

[puckhead]

Im running NGK. 55's I think. Several people on here have em. Works great and if you make the gap .04 even better!

 

[Thumper8302]

Im running NGK. 55's I think. Several people on here have em. Works great and if you make the gap .04 even better!

what are the advantages of having a .04 gap?

 

[puckhead]

Couldn't tell you an exact answer but this is what I remember of what I was told. It shortens the gap for the spark to jump making it ignite faster and more efficiently. IIRC GM changed the OEM stats (dont know to what) for gaping plugs and this .04 gap is a step more towards performance. Maybe someone can chime in and correct/expand on what I said. hope this helps!

 

[Thumper8302]

couldn't tell you an exact answer but this is what i remember of what i was told. It shortens the gap for the spark to jump making it ignite faster and more efficiently. Iirc gm changed the oem stats (dont know to what) for gaping plugs and this .04 gap is a step more towards performance. Maybe someone can chime in and correct/expand on what i said. Hope this helps!

it does make some sense....

 

[rich5368]

It's all about stock replacement A/C Delcos. I tried the Bosch +4, the NGKs, and couldn't tell the difference in any of em so I save money and put stocks in there.