Thermostat housing for 327/210 hp - Team Camaro Tech
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post #1 of 8 (permalink) Old Apr 17th, 19, 08:31 AM Thread Starter
R66
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Ron
 
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Thermostat housing for 327/210 hp

I bought an all original 68 rag top with the 327/210 hp engine back in 1978. I swapped out the original 327 for a 65 327/300 hp to get the car on the road. I started to restore it after it was hit (minor sheet metal damage) back in about 1989. I am now trying to find all of the right pieces to put it on the market and sell the complete original car.

The original thermostat housing for is listed as #3896958 (may 68 build), which I cannot find in my parts. The GM replacement is listed as 3877660 which I have 3 of, but they will not fit due to interference with the oil fill tube on the front of the intake.

Can anyone with a 68 327/210 hp tell me what number they have? All of the parts shacks list 3877660 as the replacement. I cannot upload the photos - they disappear once I drag and drop.

Thanks,

Ron
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post #2 of 8 (permalink) Old Apr 17th, 19, 10:56 AM
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Re: Thermostat housing for 327/210 hp

Read both of these.....

camaros.org/forum/index.php?topic=7949.0

camaros.org/forum/index.php?topic=7000.0

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post #3 of 8 (permalink) Old Apr 18th, 19, 06:57 AM Thread Starter
R66
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Ron
 
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Re: Thermostat housing for 327/210 hp

Thanks for the reply Jon. I found the same results on my initial search plus confirmation at the GM parts site.

I went out to the garage and decided to remove the oil fill tube to see if it was the wrong one or find some other reason. The engine is back in a corner and in poor lighting.

The oil fill tube was tight, so I took a rubber hammer and tapped around it to remove it. Upon getting it off, I found it was bent and thus the interference with the thermostat housing. Even though it was bent at the base, it still is straight and tight when reinstalled.

Rather embarrassing to admit I didn't pursue it further before writing this thread.

Thanks again,

Ron
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post #4 of 8 (permalink) Old Apr 18th, 19, 07:35 PM
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Re: Thermostat housing for 327/210 hp

The oil fill tube was not on the 68 327, at least it was not on mine, I believe it went away after 67 which is why the housing doesn’t fit
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post #5 of 8 (permalink) Old Apr 18th, 19, 10:43 PM
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Re: Thermostat housing for 327/210 hp

Quote:
Originally Posted by 68basecoupe View Post
The oil fill tube was not on the 68 327, at least it was not on mine, I believe it went away after 67 which is why the housing doesn’t fit
My 68 327/210 has the oil fill tube. 04D build.

'68 RS
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post #6 of 8 (permalink) Old Apr 19th, 19, 12:55 AM
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Re: Thermostat housing for 327/210 hp

Quote:
Originally Posted by 68basecoupe View Post
The oil fill tube was not on the 68 327, at least it was not on mine, I believe it went away after 67 which is why the housing doesn’t fit
Not true. All 68 (Camaro) small blocks had an oil fill tube. It was discontinued in 69.
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post #7 of 8 (permalink) Old Apr 20th, 19, 07:08 AM Thread Starter
R66
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Ron
 
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Re: Thermostat housing for 327/210 hp

I think 68 was a transition year. The 327 / 210 hp intake (# 3919801) has the oil fill tube with the sealed cap. The tube is larger at the top than at the mid section and then reduces once again at the base to fit into the intake.
I think this is the first year for the PCV valve and breather in the valve covers. The road draft tube at the back of the block is not drilled and machined to accept the draft tube fitting.

In 69 they went to the oil filler cap, breather cap, and PCV valve all in the valve covers.

Ron
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post #8 of 8 (permalink) Old Apr 20th, 19, 04:31 PM
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Re: Thermostat housing for 327/210 hp

Yes, closed ventilation and PCV valves became standard on all engines in 68. Was optional in 67 and required in California. All 67 small blocks had an oil fill tube also, but most had a push in breather cap instead of a twist on (closed ventilation) cap as in 68.

  • '68 RS, AA, 749, L30, M(uncie)20 (originally a 3spd), 15yr backburner resto........
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