C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Cylinder Head Id.

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Old Oct 18, 2006 | 05:12 PM
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87'vette's Avatar
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From: el paso texas
Default Cylinder Head Id.

Hello All! I have a set of heads I need to ID.
They are aluminum with very small combustion chambers.
They were on an '85 'vette with a 406ci.
The heads are stamped:
STR
AG806

and
STR
AG805

The exhaust side is machined smooth/flat.
Here are some pics.
Thanks.







Last edited by 87'vette; Oct 18, 2006 at 05:50 PM.
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Old Oct 18, 2006 | 05:31 PM
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I just looked at the first image..had problems with the others. That might be a question for the dealer, however, in the first image it showed the valve cover bolts to be on the parameter...I think they maybe 86 heads, I know on my 87 the valve cover bolts go through the center.
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Old Oct 18, 2006 | 05:59 PM
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From: el paso texas
Default heads

Rick ,thnks for the quick reply. I'm pretty sure these are not factory heads. I fixed the links.
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Old Oct 18, 2006 | 06:11 PM
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Don't look like Factory items to me either.
I have late 86 AL heads they have center bolt covers and the ports are rectangular not square looking from what I recall.
What are they? Wish I could help.
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Old Oct 18, 2006 | 06:34 PM
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Ditto here too: 87- centerbolt on mine and rectangluar ports...
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Old Oct 18, 2006 | 09:13 PM
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From: el paso texas
Default heads

hmmmmm. Hopefully someone knows what these are.
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Old Oct 18, 2006 | 09:29 PM
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They look like Brodix heads somewhat,but then again not sure.Would like to know this myself!Im pretty sure they are Brodix.Anyone know for sure?

Last edited by Aggravated4life; Oct 18, 2006 at 09:33 PM.
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Old Oct 18, 2006 | 10:29 PM
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I was thinking that they are Brodix heads too. I just think it's strange that there are no Brodix markings.
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Old Oct 19, 2006 | 02:43 AM
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go to racingworks .com
They sell STR parts.
STR is a brand name. they make intake manifolds, I didn't know they made heads too
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Old Oct 19, 2006 | 01:12 PM
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From: el paso texas
Default heads

Ok guys, found out what these heads are.
Contacted Brodix and the part number is theirs.
manufactured Feb. '89.
Street head, flows 170cc intake, 67cc chambers, 2.02-1.60 valves.
Thanks for all the replies.

Last edited by 87'vette; Oct 19, 2006 at 02:50 PM.
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