Re: DZ Spark Plugs?
 

Never have purchased from Rock Auto. I was researching to see if the XR5 plugs used gaskets or tapered seats to seal when I found them. Since I'm an auto parts sales rep, I'm gonna see if I can get them through my warehouse sources. Just thought you guys might want a good price before I find if I can get them myself.

Re: DZ Spark Plugs?
 

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Re: DZ Spark Plugs?
 

John, you're an old small block guy...do those XR5's look right?

Re: DZ Spark Plugs?
 

Yah Rob, the XR5's are a 3/8 reach gasketed plug with a 13/16 hex. A-ok for a 69 Z28. The UR5's are a .460 reach with a tapered seat and a 5/8 hex for the later stuff.

Any time there is free horse power to be had my eyes and ears really perk up! https://www.yenko.net/ubbthreads/imag...ns/burnout.gif

Re: DZ Spark Plugs?
 

did you guys find a online chart to cross over plugs from existing brands???? I need some to for the new motor...

Bud.

Re: DZ Spark Plugs?
 

[ QUOTE ]
Marlin/ Frank...what jets are you running front and rear ?

[/ QUOTE ]

For the street or for racing?

Re: DZ Spark Plugs?
 

both !!!

Re: DZ Spark Plugs?
 

I don't recall.
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