Spark Plug Gap?

xspeed02 · 03-31-2001, 04:47 PM

Just picked up a set of plugs today and the guy said there were two entries in the computer for the gap... .054 and .045
.054 seems way off. Anyone know the correct gap? Visiting my father in like the boondocks so we didn't even have an Autozone to go to. This was a CarQuest or something place. Never heard of it. Thanks again.

edit: oops forgot to tell you that my car is a 90 5.0

[This message has been edited by xspeed02 (edited 03-31-2001).]

moc · 04-01-2001, 04:22 PM

.054 is correct for a stock motor
hopefully you did not waste your money
on platnum plugs, cheap copper plugs will make your 5.0 run much nicer ..

------------------
1991 5.0 NotchBack,Black

xspeed02 · 04-02-2001, 12:02 PM

Nope, I bought the good ole Motorcraft Plugs. Going to go put them in now. Thanks

Chevyguy · 04-02-2001, 02:42 PM

I just put a set of Motorcrafts in my 90, the motorcrafts I pulled out could qualify as the factory originals the gap was worn to over 0.070.

My emissions sticker lists the plug gap as 0.052 - 0.056, call it 0.054 for a average to shoot for.

------------------
Frank W
90 5.0 LX coupe Daily driver. Silencer removed, K&N filter. Flexalite fan, 3 core radiator. FMS flywheel and Clutch Finally rebuilt T-5.

74 Chevy Laguna Type S-3 305 apart in garage, getting a 454 to put next to it
www.chevellepages.com/folingo

03-31-2001, 04:47 PM	#1
xspeed02 Registered Member Join Date: Nov 1998 Location: Kettering, Ohio Posts: 119	Spark Plug Gap? Just picked up a set of plugs today and the guy said there were two entries in the computer for the gap... .054 and .045 .054 seems way off. Anyone know the correct gap? Visiting my father in like the boondocks so we didn't even have an Autozone to go to. This was a CarQuest or something place. Never heard of it. Thanks again. edit: oops forgot to tell you that my car is a 90 5.0 [This message has been edited by xspeed02 (edited 03-31-2001).]

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04-01-2001, 04:22 PM	#2
moc Registered Member Join Date: Mar 1999 Location: Ocean City , Maryland Posts: 344	.054 is correct for a stock motor hopefully you did not waste your money on platnum plugs, cheap copper plugs will make your 5.0 run much nicer .. ------------------ 1991 5.0 NotchBack,Black

04-02-2001, 12:02 PM	#3
xspeed02 Registered Member Join Date: Nov 1998 Location: Kettering, Ohio Posts: 119	Nope, I bought the good ole Motorcraft Plugs. Going to go put them in now. Thanks

04-02-2001, 02:42 PM	#4
Chevyguy Backyard Mechanic/Chemist Join Date: Feb 2001 Location: Acton MA USA Posts: 435	I just put a set of Motorcrafts in my 90, the motorcrafts I pulled out could qualify as the factory originals the gap was worn to over 0.070. My emissions sticker lists the plug gap as 0.052 - 0.056, call it 0.054 for a average to shoot for. ------------------ Frank W 90 5.0 LX coupe Daily driver. Silencer removed, K&N filter. Flexalite fan, 3 core radiator. FMS flywheel and Clutch Finally rebuilt T-5. 74 Chevy Laguna Type S-3 305 apart in garage, getting a 454 to put next to it www.chevellepages.com/folingo