Dart Pro 1 Spark Plugs
12-19-2005, 07:13 PM
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Dart Pro 1 Spark Plugs
I just had a set of stock rect port chev heads pulled off my 540 and replaced with 325cc Dart Pro 1 fully ported heads. What spark plugs should I be running.
I used to run NGK BR6SF I believe. Would these still work? Are they the correct length?
I used to run NGK BR6SF I believe. Would these still work? Are they the correct length?
12-19-2005, 07:18 PM
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Re: Dart Pro 1 Spark Plugs
Originally Posted by vegas daytona
I just had a set of stock rect port chev heads pulled off my 540 and replaced with 325cc Dart Pro 1 fully ported heads. What spark plugs should I be running.
I used to run NGK BR6SF I believe. Would these still work? Are they the correct length?
I used to run NGK BR6SF I believe. Would these still work? Are they the correct length?
Dean Gellner
12-19-2005, 07:36 PM
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Re: Dart Pro 1 Spark Plugs
Are the plugs I have too short or in some other way the wrong size. Just courious since I have come a cross a few threads mentioning that the Dart heads require a longer plug.
I assume the R5671 A-6 is an NGK. Do you know of any other plugs for these heads just incase I can not locate the NGK's?
The shop that sold and installed the heads installed V-Power #9's. Are V-Powers the correct size? When I plug checked they seemed to read alittle hot.
Sorry for all the questions. I'm just very concerned about the possible problems with unknowingly running the wrong plugs. I did run the other plugs in a few cylinders to check my jetting. Sounds like I need to get them out.
I assume the R5671 A-6 is an NGK. Do you know of any other plugs for these heads just incase I can not locate the NGK's?
The shop that sold and installed the heads installed V-Power #9's. Are V-Powers the correct size? When I plug checked they seemed to read alittle hot.
Sorry for all the questions. I'm just very concerned about the possible problems with unknowingly running the wrong plugs. I did run the other plugs in a few cylinders to check my jetting. Sounds like I need to get them out.
12-19-2005, 08:16 PM
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Re: Dart Pro 1 Spark Plugs
Your current plugs are shorter. The NGK heat range chart goes from 1 being the hottest and 10 being the coldest. A #9 would be for a blower application. Are the engines Supercharged or N/A ?
