stock 85 spark plug gap

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Oct 18, 2004 | 02:05 PM

kismybass

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Joined: Apr 2004

Posts: 57

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From: N.Massapequa NY

stock 85 spark plug gap

im gonna due a tune up on my stock 85 this weekend. i will be using all ac delco parts including plugs. can anyone tell me what to gap them at.

Oct 18, 2004 | 02:09 PM

CFI-EFI

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From: The Top of Utah

There should be a sticker under your hood. It will say, .045".

RACE ON!!!

Oct 18, 2004 | 02:11 PM

bills1985corvette

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Joined: Mar 2004

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From: Troy Illinois

Check the lable under the hood but I believe the proper gap is .035.

Oct 18, 2004 | 04:09 PM

Unriced

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From: Schmuckville SA

It's .035...according to my label...

Oct 18, 2004 | 04:11 PM

mikey whipreck

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Joined: Jun 2004

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Quote:

Originally Posted by CFI-EFI

There should be a sticker under your hood. It will say, .045".

RACE ON!!!

84's and 85's use a different gap.... My haynes manual says what it is... but I dont have that on me right now...

Oct 18, 2004 | 07:13 PM

MrNuke

Le Mans Master

Joined: Apr 2000

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From: Shelton CT

.035 on my vette (But I use .04 with the cut-back electrodes)

Oct 18, 2004 | 07:23 PM

CFI-EFI

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Joined: Sep 2000

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From: The Top of Utah

Quote:

Originally Posted by mikey whipreck

84's and 85's use a different gap.... My haynes manual says what it is... but I dont have that on me right now...

My under hood label says .045". I thought that was "universal" for gen I engines, with the HEI. I guess that's what happens when I do my own thinking.

RACE ON!!!

Oct 19, 2004 | 01:31 AM

vettenut85

Instructor

Joined: May 2004

Posts: 163

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From: machesney park il

it used to be .045 but under my hood is a sticker that says plug gap changed to .035 per gm service tech bulleten

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Oct 19, 2004 | 01:58 AM

CentralCoaster

Team Owner

Joined: May 2002

Posts: 24,337

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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed

Quote:

Originally Posted by vettenut85

it used to be .045 but under my hood is a sticker that says plug gap changed to .035 per gm service tech bulleten

This is another case where you shouldn't listen to the parts counter guys.

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