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Old 10-08-2016, 03:26 AM   #26
semaj4712
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Re: Chevy Six Cylinder Casting Numbers

Quick question on this topic. I have a 292 with casting number 3851659 which was produced from 1963 - 1976... the date code is F 30 6 so I am wondering if this is July 30th 1966 or 1976?

What do you all think?
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Old 10-08-2016, 10:44 AM   #27
TJ's Chevy
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Re: Chevy Six Cylinder Casting Numbers

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Originally Posted by semaj4712 View Post
Quick question on this topic. I have a 292 with casting number 3851659 which was produced from 1963 - 1976... the date code is F 30 6 so I am wondering if this is July 30th 1966 or 1976?

What do you all think?
More than likely if it's in a 66 the date code will be 66. If you found some original Green on the engine as well then that is a give away. In 76 the 292 was chevy orange.
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Old 10-08-2016, 06:31 PM   #28
'68OrangeSunshine
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Re: Chevy Six Cylinder Casting Numbers

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Originally Posted by TJ's Chevy View Post
More than likely if it's in a 66 the date code will be 66. If you found some original Green on the engine as well then that is a give away. In 76 the 292 went chevy orange.
Actually, Chevy went to Chevy Engine Orange in '67. in '77 they went to blue. So yes, a '76 engine would still be orange.
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Old 10-08-2016, 11:04 PM   #29
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Re: Chevy Six Cylinder Casting Numbers

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Originally Posted by '68OrangeSunshine View Post
Actually, Chevy went to Chevy Engine Orange in '67. in '77 they went to blue. So yes, a '76 engine would still be orange.
I'm well aware they went orange in 67. Just sticking with the mentioned dates. lol Guess I worded it wrong.
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Old 10-09-2016, 06:37 AM   #30
'68OrangeSunshine
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Re: Chevy Six Cylinder Casting Numbers

No sweat. This a Truck Forum not the Rocket Scientists' Journal. Just trying to keep the time line straight.
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Old 10-01-2019, 01:26 PM   #31
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Re: Chevy Six Cylinder Casting Numbers

Hey guys, I have a real head scratcher on my hands here. I am trying to figure out the origin & CID for my engine but the casting charts I have referenced are off in my eyes.....maybe someone can set me straight. Here is what I have on my hands:

Casting Codes:
Con 3
G131
3788378

According to the charts I have cross referenced, the block is a 292 but it is clearly not unless Chevy casted 292's with the shorter side covers. Anyone have any insight here?

Thanks,

Tony J.
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Old 07-05-2020, 08:04 AM   #32
The Rocknrod
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Re: Chevy Six Cylinder Casting Numbers

3788378 Chevrolet 62 - 74 292 shown on the previous page.
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Old 07-05-2020, 08:13 PM   #33
'68OrangeSunshine
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Re: Chevy Six Cylinder Casting Numbers

Quote:
Originally Posted by TJUCLA98 View Post
Hey guys, I have a real head scratcher on my hands here. I am trying to figure out the origin & CID for my engine but the casting charts I have referenced are off in my eyes.....maybe someone can set me straight. Here is what I have on my hands:

Casting Codes:
Con 3
G131
3788378

According to the charts I have cross referenced, the block is a 292 but it is clearly not unless Chevy casted 292's with the shorter side covers. Anyone have any insight here?

Thanks,

Tony J.
Can't be a 292 if it's got short lifter panels. Could the casting number be misread? A 373xxxx casting would be in the 235/261 cubic inch series. Obsolete after MY 1963.
I know some racers built "Cheater 292s'' with a bigger crank and pistons in a short 230/250 block to get around racing inspectors, but GM never did that.
This is kind of a Zombie thread that keeps popping up every 3 or 4 years.
Show us a pic of that block, if you're indeed not one of the ''Undead''.
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