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#1 |
Registered User
Join Date: Jul 2005
Location: Owosso, Michigan
Posts: 783
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6.0 sparkplugs
Anyone have a preference on good plugs for the 6.0?
I was thinking of trying some E3 sparkplugs. |
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#2 |
Charlie Daniels w/ a Tq Wrench
Join Date: May 2009
Location: Statesville, NC
Posts: 1,570
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Re: 6.0 sparkplugs
Forget the E3s or any other gimmick plug for that matter.
You simply can't beat the stock AC Delco Iridium 41-985 (or 41-110 same plug, new p/n) they are 100,000 mi plugs, and perform as well or better than any other. FYI they come pregapped, simply check the gap, according to GM's own TSB, if the gap is incorrect, do not change the gap, return them, and get another plug.
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ΜΟΛΩΝ ΛΑΒΕ 67 C10 Shortbed "Great Grandpa's Truck" I6 3 on the Tree 71k original miles 5.3 swap in the works69 K5 Blazer-Family Beach Cruiser Project 78 K30 Dually Semi-Retired Fire Truck 350/SM465 35"s SOLD01 2500HD ECSB 6.0 4x4 5.13's 8" lift 38"s |
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#3 |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,238
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Re: 6.0 sparkplugs
DO NOT PUT E-3'S in any Chevy with coil packs They will not run right best plug for that truck is an A/c Delco Iridium 41-110 ,don't Gap them even if the box says to they are pregapped , the 41-110's are good for 100k miles just put a dap of anti-seize on the threads
bte there was a post not to long ago about an engine miss noone could figure out and the truck had 2 sets of e3's in it and his problem was cured with a set of ac delcos
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#4 |
Registered User
Join Date: Jul 2005
Location: Owosso, Michigan
Posts: 783
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Re: 6.0 sparkplugs
thanks guys!
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#5 |
Registered User
Join Date: Nov 2011
Location: powhatan virginia
Posts: 402
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Re: 6.0 sparkplugs
My truck is approaching 99k miles and i am getting ready to change my plugs as well. Is the part number the same for the 8.1L ?
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1970 442 convertible 1970 Cutlass SX 1962 Chevy Stepside 2011 GMC 3500HD Crewcab SLT DRW |
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#6 |
Charlie Daniels w/ a Tq Wrench
Join Date: May 2009
Location: Statesville, NC
Posts: 1,570
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Re: 6.0 sparkplugs
The 8.1 uses 41-983 for the OEM AC Delco Iridium application.
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ΜΟΛΩΝ ΛΑΒΕ 67 C10 Shortbed "Great Grandpa's Truck" I6 3 on the Tree 71k original miles 5.3 swap in the works69 K5 Blazer-Family Beach Cruiser Project 78 K30 Dually Semi-Retired Fire Truck 350/SM465 35"s SOLD01 2500HD ECSB 6.0 4x4 5.13's 8" lift 38"s |
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#7 | |
Registered User
![]() Join Date: Jun 2009
Location: Lawson Mo
Posts: 147
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Re: 6.0 sparkplugs
Quote:
I completely agree. My 00' Sierra had E3 plugs in it when I bought it. Changed them out with the A/C Delco 41-110s and it turned into a completely different truck. Not to mention the E3's were completely burnt.
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2006 Silverado 2500 HD |
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#8 |
Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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Re: 6.0 sparkplugs
Another one here with a bad E3 experience. I just changed mine last weekend to E3 before I found out all the bad stuff. I noticed the truck ran a little rougher when idling(missing) and we lost about 30 miles from a tank of gas. We normally get about 425-430 miles to a tank and just barely got 400 out of our last tank. I changed my plugs to the AC-Delcos last night.
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USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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#9 |
Registered User
Join Date: Feb 2010
Location: elora tn
Posts: 121
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Re: 6.0 sparkplugs
I just traded a 2002 Olds van and it had the factory plugs in it. 171K miles and still got 25-27 MPG. You cannot do better than the factory plugs.
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2001 GMC 2WD, 1998 Chevy K2500 |
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