Chevy silvardo 2003 4.8 voltec v8.. if a use a spark plug acdelco 41-993, what should my gap be at??? .040 or .060?? thx

The correct gap for that engine is .035 Inch and the proper spark plug is an A/C Delco CR43TS Torqued to 11lbs ft.

I DON'T KNOW MOST PLATINUM AND IRIDIUM PLUGS HAVE FACTORY GAP AND SHOULD NOT BE CHANGED.
ENTER VEHICLE DETAILS HERE
https://www.amazon.com/ACDelco-41-988-Professional-Iridium-Spark-x/dp/B000C9S402

Acdelco says the correct gap is, .035

Spark Plug Gap - AutoZone

www.autozone.com/.../specificationsMain.jsp?...Spark+Plug+G...

AutoZone2004 Mercury Grand Marquis 4.6L SFI 8cyl ' Specifications ' Spark Plug Gap.

AstroSafari.com • Spark plug gap size?

www.astrosafari.com/viewtopic.php?f=43&t=81409

Jul 27, 2015 - You're doing a '96? I think EARLIER 2nd Gen 4.3's used a .045" gap ; I believe it changed in 2000 or 2001 but don't quote me on that. All i'm ...Missing: gov

AstroSafariVans.com • View topic - spark plug gap question

astrosafarivans.org > ... > ENGINES GENERAL/PERFORMANCE

Nov 28, 2012 - 15 posts - ‎4 authors
My question is do I gap the spark plugs per 89 4.3 specs or do I use the 95 .... The vortec heads for a V8 chevy are 1996 and up however there ...Missing: gov

What is the proper sparkplug gap? - CarGurus

www.cargurus.com > Questions > GMC > Jimmy

CarGurusMar 16, 2013 - My Haynes manual and various places I've seen online say the gap is .045 inches ... spark plug gap for 1992 4.3 160 HP? ... Used GMC Safari".Missing: gov

[PDF]2000 GMC Safari Owners Manual - GM Extended Warranty

www.vadengmpp.com/owners-manual/gmc/2000-GMC-Safari.pdf

there is a decal under the hood somewhere that has the plug gap on it. I think the gap is .052".

See page #54 and look up your spark plug number. http://www.acdelco.com.au/PDFs/_Catalogue_ACDelco_Spark%20Plugs.pdf

Chevrolet spark plugs - Wholesale Chevrolet spark plugs direct to you from Auto Parts GIANT.com.

888 - 311- 5186

http://www.autopartsgiant.com/chevrolet/sparkplugs/

2000 Chevrolet Truck S10 P/U 4WD 4.3L SFI 6cylSPARK PLUG ASM
Part Number: 12
Product Notes:
[Rapidfire Spark Plug]; .060 GAP
Per Vehicle: 6; Years: 1996-2001

SPARK PLUG ASM
Part Number: 41-993
Product Notes:
[Platinum Spark Plug]; .060 GAP
Per Vehicle: 6; Years: 1996-2002

From acdelco-catalog


Hope helps (remember to rate this answer).

Make: CHEVROLET
Model: TAHOE
Year: 2003
Engine: V8 - 5.3L - FI - - FLEX

All details here:

Standart:
- Champion RS14YC .040" (OE GAP)

Premium Class:
- Champion Double platinum 7983 .040" (OE GAP)
- Champion Iridium Plug 9405 .040" (OE GAP) (Original Equipment Manufacturer and/or Original Equipment Equivalent)

Hope helps with this (rated this help) Good luck.

GAP=0.035" source: rockauto.com