need advice on which spark plugs to use

Reply Subscribe

Thread Tools

Search this Thread

Jan 10, 2009 | 11:49 AM

rspears9

Thread Starter

Staging Lane

Joined: Apr 2008

Posts: 53

Likes: 0

need advice on which spark plugs to use

my car is a 95 z28,it is bored 30 over with comp cam 499 lift i think with hi crane roller rocker lifters.6 inch rods, and moroso cold air induction. i need to know which spark plugs to use and the number on the plugs i need to ask for,i dont know if these things done to the engine means any difference in the plugs and the numbers.please give advice.thanks

Jan 10, 2009 | 12:23 PM

96lt1m6

TECH Junkie

iTrader: (31)

Joined: Jan 2006

Posts: 3,782

Likes: 3

From: LA$ VEGA$

tr-55 NGK
104 Autolite

Jan 10, 2009 | 12:25 PM

vanilla89

TECH Enthusiast

iTrader: (8)

Joined: Dec 2005

Posts: 622

Likes: 0

From: dallas tx

I use autolite 104's

Jan 10, 2009 | 02:07 PM

Elliott's94Z

Banned

iTrader: (12)

Joined: Mar 2008

Posts: 4,370

Likes: 1

From: Oregon Grown

Quote:

Originally Posted by 96lt1m6

tr-55 NGK
104 Autolite

+2 on either set

Jan 10, 2009 | 03:29 PM

SoxXpupPeT

TECH Junkie

iTrader: (34)

Joined: May 2008

Posts: 3,431

Likes: 1

From: Yonkers, NY

Quote:

Originally Posted by 96lt1m6

tr-55 NGK
104 Autolite

tr-55's here. there cheap, and my lt1 loves them

Jan 10, 2009 | 07:17 PM

1994TAguy18

Teching In

iTrader: (1)

Joined: May 2008

Posts: 35

Likes: 0

From: Galloway , OH

i used the E3 plugs and it picked me up a 10th in the 1/4 and the plugs i pulled out of it were still in good shape

Jan 10, 2009 | 11:45 PM

rspears9

Thread Starter

Staging Lane

Joined: Apr 2008

Posts: 53

Likes: 0

spark plugs

ok i will go with the tr55,im a newbie to the lt1,so whats the +2 or whats the plug.a colder plug or hotter one.

Last edited by rspears9; Jan 10, 2009 at 11:46 PM. Reason: left out

Trending Topics

Oil Bypass Barbell

20

359
Disappointing Dyno Results

14

207
So GM / ACD is no longer an option for Oil Pressure Sending Units?

11

251
406 Hydraulic to Solid Roller cam results

15

494
1999 SS 1LE (aka. White Privilege)

38

1.5k

Jan 11, 2009 | 03:29 AM

koolaid_kid

TECH Junkie

iTrader: (21)

Joined: Jul 2005

Posts: 3,023

Likes: 1

From: Indianapolis

Quote:

Originally Posted by rspears9

ok i will go with the tr55,im a newbie to the lt1,so whats the +2 or whats the plug.a colder plug or hotter one.

+2 means he gives them 2 votes or 2 attaboys. (He agrees).
The TR55 is a standard heat range plug for the LT1. Most prefer the NGKs as a better, more reliable piece than other brands.
With your mods I see no reason to change the heat range, so the TR-55 should be a good choice. They also come in several flavors: standard, platinum, iridium. Stick with standard, you'll do fine and save some coin.