What spark plugs should I run?
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
What spark plugs should I run?
A lot of people I know run NGK plugs.
Am I supposed to run the TR55 or the TR55VX (Platinum) on my LT1 with the mods in my sig.
What about on my bone stock 88 305 TPI Formula?
I am picking up some plugs tomorrow for both cars, just wanted to know which ones to get.
thanks.
Oh, and these are what the tips look like,

TR55

TR55VX Platinum
any other suggestions, bearing in mind that cost is a major factor.
$2.00/plug is the max I want to spend.
Am I supposed to run the TR55 or the TR55VX (Platinum) on my LT1 with the mods in my sig.
What about on my bone stock 88 305 TPI Formula?
I am picking up some plugs tomorrow for both cars, just wanted to know which ones to get.
thanks.
Oh, and these are what the tips look like,

TR55

TR55VX Platinum
any other suggestions, bearing in mind that cost is a major factor.
$2.00/plug is the max I want to spend.
Thread Starter
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iTrader: (1)
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Originally posted by Z_Ghost
On your bone stock 88 305 TPI Formula why not run AC Delco, they work really well for me and they are cheep.
On your bone stock 88 305 TPI Formula why not run AC Delco, they work really well for me and they are cheep.
I like NGK alot. I would pick up some TR55s for the LT1 but you cant run TR55s in the older heads as the reach is too long. L98s use the NGK UR4 I would imagine the 305 is no different but you might want to check out www.ngk.com to be sure.
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Originally posted by OMINOUS_87
I like NGK alot. I would pick up some TR55s for the LT1 but you cant run TR55s in the older heads as the reach is too long. L98s use the NGK UR4 I would imagine the 305 is no different but you might want to check out www.ngk.com to be sure.
I like NGK alot. I would pick up some TR55s for the LT1 but you cant run TR55s in the older heads as the reach is too long. L98s use the NGK UR4 I would imagine the 305 is no different but you might want to check out www.ngk.com to be sure.
Call me crazy, or cheap, or both 
I've run the plain jane AC Delco plugs on every GM I've ever owned without every having a spark plug related problem. And yes, I've tried Bosch, NGK, etc etc.
One MAJOR reason I like the AC Delco, they are about a $1.00 each. So when ever I'm under the hood doing something else, especially now with headers making plug changes alot faster, I will replace the plugs, even though most times they really don't need it....but it's less than $10......
HTH
I need to drive down from Richmond one day and check out the LT1 swaps you wrenched on...

I've run the plain jane AC Delco plugs on every GM I've ever owned without every having a spark plug related problem. And yes, I've tried Bosch, NGK, etc etc.
One MAJOR reason I like the AC Delco, they are about a $1.00 each. So when ever I'm under the hood doing something else, especially now with headers making plug changes alot faster, I will replace the plugs, even though most times they really don't need it....but it's less than $10......
HTH
I need to drive down from Richmond one day and check out the LT1 swaps you wrenched on...
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Thread Starter
Supreme Member
iTrader: (1)
Joined: Feb 2000
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Originally posted by ctandc
Call me crazy, or cheap, or both
I've run the plain jane AC Delco plugs on every GM I've ever owned without every having a spark plug related problem. And yes, I've tried Bosch, NGK, etc etc.
One MAJOR reason I like the AC Delco, they are about a $1.00 each. So when ever I'm under the hood doing something else, especially now with headers making plug changes alot faster, I will replace the plugs, even though most times they really don't need it....but it's less than $10......
HTH
I need to drive down from Richmond one day and check out the LT1 swaps you wrenched on...
Call me crazy, or cheap, or both

I've run the plain jane AC Delco plugs on every GM I've ever owned without every having a spark plug related problem. And yes, I've tried Bosch, NGK, etc etc.
One MAJOR reason I like the AC Delco, they are about a $1.00 each. So when ever I'm under the hood doing something else, especially now with headers making plug changes alot faster, I will replace the plugs, even though most times they really don't need it....but it's less than $10......
HTH
I need to drive down from Richmond one day and check out the LT1 swaps you wrenched on...
Come on down one weekens, you can check out the swaps as well as some of the other nice cars in the area. our local board is www.tidewaterracing.com
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Joined: Mar 2002
Posts: 3,445
Likes: 1
From: Huber Heights, OH
Car: 00 TA, 91 Formula, 89 RS
Engine: LS1 / 305 / 2.8, respectively
Transmission: T-56 / auto / auto
I like NGK. They took a lot longer to foul out on my Honda with worn piston rings than the A/C Delcos and Champions did.
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