Putting plugs in a 5.3 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Scooterr · 05-21-2011, 11:16 PM

This is the first time Ive ever worked on an alum head(surprising seeing how many engines Ive built)
Im a little worried about damaging the head since I have no idea if I can trust that the old owner put anti seize on the plugs or not...could it help any if I sprayed some pb blaster on the plugs and let it sit for a little bit before giving it a shot??

Or should I just make sure its cold and cross my fingers?

Sorry, I know this is a stupid question to most of you.

**truckdude239** · 05-22-2011, 10:02 AM

well i change alot of these out and never had a problem don't have to be changed till about 100k and the factory don't normally use anti seize and they come right out, be sure to use a good set of ac delco plugs like platinum or better

Scooterr · 05-22-2011, 12:47 PM

Changed them this morning, after some interesting pops and crackles from the NGK plugs, all is good.

**truckdude239** · 05-22-2011, 02:23 PM

did you take ngks out or put them in?

Scooterr · 05-22-2011, 05:21 PM

Took ngks out, put AC Delcos in..those pos ngks were soo burnt out Im surprised it ran

**Boog** · 05-22-2011, 08:37 PM

After having ruined threads in small engine heads before and having to use helicoils to save them when it came time to change the plugs in my LS engine I wasn't taking any chances. I waited until overnight to change them and used antisieze going back in. Helps lube the threads and maybe prevent them from gawling next time they come out. Cheap insurance.

05-21-2011, 11:16 PM	#1
Scooterr Registered User Join Date: Mar 2011 Location: Conyers, GA Posts: 12	Putting plugs in a 5.3 This is the first time Ive ever worked on an alum head(surprising seeing how many engines Ive built) Im a little worried about damaging the head since I have no idea if I can trust that the old owner put anti seize on the plugs or not...could it help any if I sprayed some pb blaster on the plugs and let it sit for a little bit before giving it a shot?? Or should I just make sure its cold and cross my fingers? Sorry, I know this is a stupid question to most of you. __________________ smoke:2001 Silverado 1500 HD tranny cooler 285-75-16 E range Hankook M/T's, Helper springs, Trailerbrakes, Toolbox(with every tool ya need), Mudflaps, etc.. Its the farms mobile work shop:

05-22-2011, 10:02 AM	#2
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: Putting plugs in a 5.3 well i change alot of these out and never had a problem don't have to be changed till about 100k and the factory don't normally use anti seize and they come right out, be sure to use a good set of ac delco plugs like platinum or better __________________ 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 Last edited by truckdude239; 05-22-2011 at 10:02 AM.

05-22-2011, 12:47 PM	#3
Scooterr Registered User Join Date: Mar 2011 Location: Conyers, GA Posts: 12	Re: Putting plugs in a 5.3 Changed them this morning, after some interesting pops and crackles from the NGK plugs, all is good. __________________ smoke:2001 Silverado 1500 HD tranny cooler 285-75-16 E range Hankook M/T's, Helper springs, Trailerbrakes, Toolbox(with every tool ya need), Mudflaps, etc.. Its the farms mobile work shop:

05-22-2011, 02:23 PM	#4
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: Putting plugs in a 5.3 did you take ngks out or put them in? __________________ 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

05-22-2011, 05:21 PM	#5
Scooterr Registered User Join Date: Mar 2011 Location: Conyers, GA Posts: 12	Re: Putting plugs in a 5.3 Took ngks out, put AC Delcos in..those pos ngks were soo burnt out Im surprised it ran __________________ smoke:2001 Silverado 1500 HD tranny cooler 285-75-16 E range Hankook M/T's, Helper springs, Trailerbrakes, Toolbox(with every tool ya need), Mudflaps, etc.. Its the farms mobile work shop:

05-22-2011, 08:37 PM	#6
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,535	Re: Putting plugs in a 5.3 After having ruined threads in small engine heads before and having to use helicoils to save them when it came time to change the plugs in my LS engine I wasn't taking any chances. I waited until overnight to change them and used antisieze going back in. Helps lube the threads and maybe prevent them from gawling next time they come out. Cheap insurance. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross



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