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Author
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Topic: spark plug question
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asskickn88
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Member # 4957
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posted
 
 
Does anyone know where I can get spark plugs one heat range cooler for GT40 iron heads? I've got the stock replacement Autolite plugs in my truck but with the blower I need to go with a cooler plug and can't find one. I'm using the Autolite 764's and usually you just change the last number up or down for different heat ranges but there isn't a 763, any idea's?
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Three 540 Bimmers and a 5.0 Explorer.... got a Ford back in the stable!
It's time for the country to do what Obama's own father did.
Abandon him.
Posts: 6069 | From: Rocklin, Ca | Registered: Oct 2004
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BlowN67
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Member # 4229
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posted
autolite 103's.. thats what i run my svo.. svo is 764 stock. i got it cross refrenced on turboford.com i think or one of those.. good luck
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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asskickn88
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Member # 4957
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posted
quote:
Originally posted by BlowN67:
autolite 103's.. thats what i run my svo.. svo is 764 stock. i got it cross refrenced on turboford.com i think or one of those.. good luck
I just found 103 and 104's listed. They say the 104 is one step colder and the 103 is 2 steps colder. I guess I'll try the 104's and see what happens. I at least have a direction to go with it now though, thanks.
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Three 540 Bimmers and a 5.0 Explorer.... got a Ford back in the stable!
It's time for the country to do what Obama's own father did.
Abandon him.
Posts: 6069 | From: Rocklin, Ca | Registered: Oct 2004
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RED@7kVERT *8850GT*
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Member # 5909
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posted
103's are ONE step colder than 764's....i run 103's or NGK TR6's in the cobra.
Posts: 2432 | From: -916- | Registered: Aug 2005
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BlowN67
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Member # 4229
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posted
ya so whats the out come did they help?
I thought the 103's were one step but could be wrong.
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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asskickn88
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Member # 4957
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posted
quote:
Originally posted by RED@7kVERT *8850GT*:
103's are ONE step colder than 764's....i run 103's or NGK TR6's in the cobra.
Are you sure? I read the 103's were two steps colder.... ![[Confused]](confused.gif) I just picked up a set of 104's and haven't put them in yet so if I'm wrong then I need to take them back. What heat range are the TR6's? My Cobra had TR55's in it but I'm doing a complete once over on it too so I need plugs for that too.
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Three 540 Bimmers and a 5.0 Explorer.... got a Ford back in the stable!
It's time for the country to do what Obama's own father did.
Abandon him.
Posts: 6069 | From: Rocklin, Ca | Registered: Oct 2004
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asskickn88
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Member # 4957
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posted
Yep, I just found all the info I needed. I found the crossover on another site yesterday and the print was so small I thought the TR6 was TR5 so that got me going in the wrong direction right out of the gate. NGK TR6, Denso T20EPR-U and Autolite 103 are all plugs that are one heat range colder and will work for DOHC Cobra or GT40 heads.
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Three 540 Bimmers and a 5.0 Explorer.... got a Ford back in the stable!
It's time for the country to do what Obama's own father did.
Abandon him.
Posts: 6069 | From: Rocklin, Ca | Registered: Oct 2004
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RED@7kVERT *8850GT*
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Member # 5909
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posted
quote:
Originally posted by asskickn88:
Yep, I just found all the info I needed. I found the crossover on another site yesterday and the print was so small I thought the TR6 was TR5 so that got me going in the wrong direction right out of the gate. NGK TR6, Denso T20EPR-U and Autolite 103 are all plugs that are one heat range colder and will work for DOHC Cobra or GT40 heads.
sounds like you got it under control!!
![[patriot]](graemlins/patriot.gif)
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02 Z06-11.0 @ 132 1.9 60'
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Sold:05 CTS-V-13.1@114
Sold:01 Cobra Vert-12.0@119
Posts: 2432 | From: -916- | Registered: Aug 2005
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asskickn88
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Member # 4957
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posted
I thought I had it under control with the 104's so I'm glad you got going in the right direction or I would have swapped them in and had the exact same problems!
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Three 540 Bimmers and a 5.0 Explorer.... got a Ford back in the stable!
It's time for the country to do what Obama's own father did.
Abandon him.
Posts: 6069 | From: Rocklin, Ca | Registered: Oct 2004
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BlowN67
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Member # 4229
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posted
103's i didnt think i put 2steps colder in the svo but heck never know lol
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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