Posted By: sixpackgut
spark plug options for Gen3 - 01/13/15 02:48 AM
What are they?
Im running ngk LZTR5A
Im running ngk LZTR5A
spark plug options for Gen3
Posted By: 440Jim
Re: spark plug options for Gen3 - 01/13/15 04:13 AM
Is this for a stock 5.7, 6.1, etc?
Posted By: sixpackgut
Re: spark plug options for Gen3 - 01/13/15 04:38 AM
426 with 5.7 heads. Will the msd hemi 6 be ok with iridium plugs?
Posted By: StricNine
Re: spark plug options for Gen3 - 01/13/15 04:55 AM
Those plugs shown above are stock heat range 09+ 5.7 (Eagle). The Eagle heads use a gasket type plug, the 08 and older 5.7 don't use a gasket and have a bevel that seals the plug to the head.
A 1 step colder plug for an Eagle head (copper) is LFR6C-11 (NGK).
A 1 step colder plug for an Eagle head (copper) is LFR6C-11 (NGK).
Posted By: sixpackgut
Re: spark plug options for Gen3 - 01/13/15 05:02 AM
Quote:
Those plugs shown above are stock heat range 09+ 5.7 (Eagle). The Eagle heads use a gasket type plug, the 08 and older 5.7 don't use a gasket and have a bevel that seals the plug to the head.
A 1 step colder plug for an Eagle head (copper) is LFR6C-11 (NGK).
That is what prompted the question, i have had 6.1 plugs in there for over a year. What is the stock number for that plug
Posted By: 72Swinger
Re: spark plug options for Gen3 - 01/13/15 05:09 AM
Here is a decent rundown Ray.
http://www.highhorseperformance.com/category_s/2064.htm
http://www.highhorseperformance.com/category_s/2064.htm
Posted By: sixpackgut
Re: spark plug options for Gen3 - 01/13/15 05:15 AM
So because I'm a super genius, I came up with this super idea. I'll just yank the plugs out of my Apache heads and they are the same style as 6.1 plugs so only the Eagles are different
Posted By: sixpackgut
Re: spark plug options for Gen3 - 01/13/15 05:18 AM
Quote:
So because I'm a super genius, I came up with this super idea. I'll just yank the plugs out of my Apache heads and they are the same style as 6.1 plugs so only the Eagles are different
Hey idiot, it may be cheaper to change the springs and run the Apache head than change spark plugs
Posted By: sixpackgut
Re: spark plug options for Gen3 - 01/13/15 05:19 AM
Quote:Quote:
So because I'm a super genius, I came up with this super idea. I'll just yank the plugs out of my Apache heads and they are the same style as 6.1 plugs so only the Eagles are different
Hey idiot, it may be cheaper to change the springs and run the Apache head than change spark plugs
You will have to port them first
Posted By: sixpackgut
Re: spark plug options for Gen3 - 01/13/15 05:22 AM
Quote:Quote:Quote:
So because I'm a super genius, I came up with this super idea. I'll just yank the plugs out of my Apache heads and they are the same style as 6.1 plugs so only the Eagles are different
Hey idiot, it may be cheaper to change the springs and run the Apache head than change spark plugs
You will have to port them first
Your talking to yourself
Posted By: slammedR/T
Re: spark plug options for Gen3 - 01/13/15 05:27 AM
Quote:Quote:Quote:Quote:
So because I'm a super genius, I came up with this super idea. I'll just yank the plugs out of my Apache heads and they are the same style as 6.1 plugs so only the Eagles are different
Hey idiot, it may be cheaper to change the springs and run the Apache head than change spark plugs
You will have to port them first
Your talking to yourself
Posted By: StricNine
Re: spark plug options for Gen3 - 01/13/15 05:28 AM
Just to be clear, the LFR5C-11 are stock 09+ 5.7 plugs and are the same heat range as the stock 6.1 plugs. They are not interchangeable as the 6.1 head uses a tapered seat plug and Eagle head uses a gasket type plug.
The LZTR5A are stock heat range 6.1 plugs, and 1 heat range colder 08 and older 5.7 plugs.
If a tapered seat plug is installed in an Eagle head it's probably best to keep using a tapered seat plug from that point forward. The tapered seat plug will deform the area around the "seat" of the plug in the head and will probably make sealing a gasket type plug problematic in the future.
The LZTR5A are stock heat range 6.1 plugs, and 1 heat range colder 08 and older 5.7 plugs.
If a tapered seat plug is installed in an Eagle head it's probably best to keep using a tapered seat plug from that point forward. The tapered seat plug will deform the area around the "seat" of the plug in the head and will probably make sealing a gasket type plug problematic in the future.
Posted By: 72Swinger
Re: spark plug options for Gen3 - 01/13/15 05:29 AM
But then your Apache heat range would need tweaked anyway......
Posted By: sixpackgut
Re: spark plug options for Gen3 - 01/13/15 05:33 AM
Quote:
But then your Apache heat range would need tweaked anyway......
Comp will go down with the Apache head, 9.80s on 87 octane
Posted By: MR_P_BODY
Re: spark plug options for Gen3 - 01/13/15 05:40 AM
Quote:Quote:Quote:Quote:
So because I'm a super genius, I came up with this super idea. I'll just yank the plugs out of my Apache heads and they are the same style as 6.1 plugs so only the Eagles are different
Hey idiot, it may be cheaper to change the springs and run the Apache head than change spark plugs
You will have to port them first
Your talking to yourself
Duuuhh.... LOL
Posted By: 72Swinger
Re: spark plug options for Gen3 - 01/13/15 06:26 AM
Quote:Quote:
But then your Apache heat range would need tweaked anyway......
Comp will go down with the Apache head, 9.80s on 87 octane
Now your talking all crazy....