Offshoreonly.com - Spark Plugs

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Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - Spark Plugs (https://www.offshoreonly.com/forums/general-q/147004-spark-plugs.html)

Griff

12-15-2006 02:35 PM

Re: Spark Plugs

I always get mine at NAPA also. They always have a hard time looking up the actual UR5# as they use the NGK stock #2771. Have them look it up with the #2771.

LAKESIDE RESTORATIONS

12-15-2006 02:52 PM

Re: Spark Plugs

I just checked on the #2771 plugs for you. If you need them I can have them into me in a day or 2 on average. If you want a $ shoot me a PM.. :) Jamie / lakeside

articfriends

12-16-2006 12:06 AM

Re: Spark Plugs

Quote:

Originally Posted by kennyo

What gap would you run on a procharged 502?

I ran 43's in my 540 when it still had merlin heads,the 42's and 41's were just too cold. .045 w/msd ignition,.035 w/stock,Smitty

Panther

12-16-2006 10:03 AM

Re: Spark Plugs

I run the NGK R5674-7's (stock # 5034) in my blower motors.

Panther

12-16-2006 01:15 PM

Re: Spark Plugs

I believe the NGK R5674-7 is designed for high combustion chamber pressures. It's electrode is not sticking too far out, like a stock design plug(or like a UR5) and therefore is not as prone to the spark being blown out.

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