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Feb 12, 2006 | 06:36 PM

jvette87

Thread Starter

Intermediate

Joined: Jan 2006

Posts: 47

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From: salem indiana

head question

i have an 87 a4 coupe. how can i tell if i have cast iron or aluminum heads? i'm trying to get new plugs but it lists plugs for each and i dont know what i have

thanks for any info

Feb 12, 2006 | 06:43 PM

89sleeper

Burning Brakes

Joined: Jan 2005

Posts: 804

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From: The land of 10,000 lakes ,Minnesota 89 coupe 6speed with 383 and 89 roadster 6speed bonestock with XXX low miles

If you can't tell by the color use a magnet it will stick to the cast heads but not allumium

Last edited by 89sleeper; Feb 12, 2006 at 06:45 PM.

Feb 12, 2006 | 10:43 PM

John A. Marker

Le Mans Master

Joined: Mar 2004

Posts: 5,107

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From: Dublin CA

Magnet

Stock motor changed mid year 86 to aluminum. Your 87 should have aluminum. But if you are not the original owner, you NEVER know what someone has done. Check with a magnet.

Feb 13, 2006 | 12:08 AM

vader86

Team Owner

Joined: Sep 2001

Posts: 62,122

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From: Athens AL

C7 of the Year - Unmodified Finalist 2021

C4 of Year Finalist (performance mods) 2019

All 87s have aluminum heads if they are original.

Feb 13, 2006 | 10:46 AM

jvette87

Thread Starter

Intermediate

Joined: Jan 2006

Posts: 47

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From: salem indiana

thanks guys, was wanting to put ngk iridium plugs in it but they are only for cast iron. guess i will go with the g-power ones.

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