Spark plug advice

-
Lil Demon

Lil Demon

Well-Known Member
Joined
Mar 23, 2011
Messages
277
Reaction score
97
Location
Laredo, Texas
Im in the process of finishing my 340 build and would like to close off all engine openings to avoid dust or critters from entering my motor. I need spark plug selection advice.

My motor is a .040 over stock stroke 340. Aluminum heads, 242/246 solid flat cam, 11:1 compression and I will be going with the FiTech system.

I have always preferred Champion but I've been very pleased with the performance of NGK in recent builds (non mopar). What heat range plugs should I use given the build?

IMG_7392.JPG
 
Is NGK still made in Japan? Or have they moved to China too?

I quit using Champion as they're made in China garbage now :(
 
Autolite 3924's..been using them in my aluminum headed 360 and 416 for over 7 years now..as someone already stated Champions=garbage!!
 
Thanks for all the input gentleman. No doubt we've all had different experiences with various spark plug brands.
 
Never had a autolite I liked unless it was in a Ford. Champs in the MoPar work best for me. I'd start with the stock heat range (&/or) minus 1 in your build.
 
Pfst! What ever work for you! That's the bottom line!
 
I've said it be for we in another thread, I've u
Used about every brand there is and I've Never had a plug issue that was the plugs fault. Except those SPLIT FIRES .!! Garbage. They all fell apart. Get the correct heat range and run whatever brand you want. I generally put champions or Auto lites in because everyone carrys them
 
i've never like champions.... have always run autolite or NGK..

just took a set of NGK GR4GP out of the dart.. they seem to cross reference with an autolite 65. i installed set autolite 64 a heat range cooler. not sure what one range cooler NGK is. and the autolites are easier to find around here..
 
You must log in or register to reply here.
-

Back
Top