Head ID - Team Camaro Tech
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post #1 of 7 (permalink) Old Feb 12th, 19, 10:40 PM Thread Starter
Probationer
 
Join Date: Feb 2019
Posts: 3
Head ID

Could use a little help identifying these heads please. I beleave the casting to be 3927188 or 3927186, 202 valves and double small humps, thanks!
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post #2 of 7 (permalink) Old Feb 12th, 19, 10:41 PM Thread Starter
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Sorry, tried to attach photos but there not showing
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post #3 of 7 (permalink) Old Feb 13th, 19, 03:22 AM
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Kevin
 
Join Date: Mar 2016
Location: Lake Mary, Florida
Posts: 422
Re: Head ID

As a standard member, you can only post one photo, so perhaps this is your issue with posting pictures.

Found this from a Corvette site when I googled your casting numbers:

Small Block Chevy Cylinder Head Indentification

1968-69 3927186 302 2.02 1.6
1968-69 3927186 327 2.02 1.6
1970-72 3927186 350 2.02 1.6
1969 3927188 307 1.72 1.5
1969 3927188 327 1.72 1.5
1969 3927188 350 1.72 1.5

Never argue with an idiot; they'll only drag you down to their level, then beat you with experience.

Last edited by bucko; Feb 13th, 19 at 03:33 AM.
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post #4 of 7 (permalink) Old Feb 13th, 19, 07:26 AM
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Al
 
Join Date: Jun 2007
Location: Iowa
Posts: 3,045
Re: Head ID

Sean, Per your description I believe they are the 186's. They should have accessory mounting
holes. Possibly from a 69 Z28 302.
https://www.enginelabs.com/engine-te...ads-to-gen-iv/

Al

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post #5 of 7 (permalink) Old Feb 14th, 19, 05:44 PM
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Kev
 
Join Date: Dec 2007
Location: North Texas
Posts: 615
Re: Head ID

SBC heads have or don't have bolt holes on the ends as well as a pattern cast into the ends that helps to ID them. Then there are the casting numbers that ID the heads. Why not search on the casting number?
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post #6 of 7 (permalink) Old Feb 14th, 19, 06:43 PM Thread Starter
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I have done lots of research. The problem is that the casting numbers are somewhat difficult to read, 186 or 188? I don’t beleave the 188 heads from a 307 had 2.02’s or double humps. If I can figure out how to upgrade my membership I will post the pic’s. Thanks for the reply’s!
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post #7 of 7 (permalink) Old Feb 15th, 19, 08:14 AM
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Al
 
Join Date: Jun 2007
Location: Iowa
Posts: 3,045
Re: Head ID

Sean, Here's a thread from a Corvette forum showing the casting number. Post #6.
It can be difficult deciphering "8" or "6". If your heads have 2.02 valves and are camel
hump they are 186's.
https://www.corvetteforum.com/forums...g-numbers.html

Al

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