billscamaros

iTrader: (1)

i just replaced the plugs on my '99 Z28. after looking through some threads here on ls1tech, i bought a set of ac delco 41-985's. the plugs that i pulled out were ac delco 41-952's. what is the difference, and should i expect any problems?

the car is pretty much stock, has 110k miles and knocks down 26.5 mpg on my commute.

i tried to search the ac delco website, but couldn't find any tech info.

thanks

bill

staringback05

iTrader: (8)

im not sure about the numbers themselves, but one might be iridiums and the other coppers....or just a model year difference....