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Old Nov 3, 2014 | 10:53 AM
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Default Please help me ID my engine

Hello everyone,

My father and I bought a '68 vert to restore. It is in good shape, and our plan is to make it a driver. Eventually, we would like to drop in a larger engine, but other things take priority and I really just want to figure out what I have now. The seller stated that it was not the original 327 but was a 327 from the correct era. All I know is that it is incredibly slow, but I am comparing it to a '88 vert that I have been driving. I know I see what I think is a blocked return line for fuel and a recirculation line that is cut off, but other than those things does anyone see anything that is a major concern?

Intake number - 3919805 - a little searching and it looks like maybe a truck intake

Block - from driver's side behind motor - 3970010 - looks like it could be from anything from a 69 RS to a 70's something truck.

Carb - from sticker on carb - 1050177 & 64-7096

Thanks guys
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Old Nov 3, 2014 | 11:04 AM
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That rubber fuel line and plastic gas filter is just downright dangerous.

See if there are any numbers on the stamp pad in front of the right/passenger side cylinder head.
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Old Nov 3, 2014 | 11:11 AM
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Originally Posted by Mike Ward
That rubber fuel line and plastic gas filter is just downright dangerous.

See if there are any numbers on the stamp pad in front of the right/passenger side cylinder head.
Fuel line - If I plan to do a BB swap eventually is there a size/material I should swap to?

Head number - I read several threads about checking there, but I cleaned it with simple green and saw nothing there
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Old Nov 3, 2014 | 11:42 AM
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Originally Posted by SDS Photography
Fuel line - If I plan to do a BB swap eventually is there a size/material I should swap to?
Only rigid steel lines should be used downstream of a fuel pump.

Originally Posted by SDS Photography
Head number - I read several threads about checking there, but I cleaned it with simple green and saw nothing there
Then you're SOL.
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Old Nov 3, 2014 | 12:08 PM
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Hi SDS,
The stamped information Mike suggested you look for isn't on the head, but is on a pad on the block's top surface.
There will likely be 2 sets of stamped letters and digits.
That will tell you the configuration of the engine when it was originally assembled, when that was, and the vehicle it first was installed in.
Something like this… it could well be painted over. Is this where you looked?
Hope you can find it.
Regards,
Alan

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Old Nov 3, 2014 | 12:25 PM
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The carb is a commercially rebuilt carb, and is likely to have significant issues, likely to affect performance. It should have a fuel filter in the carb body, so your in-line filter (which appears to be hacked-in on the suction side of the pump)should be removed - filters installed on the suction side are a bad idea, and will result in fuel starvation at elevated rpm when used with the stock diaphragm pump.

Lars
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Old Nov 3, 2014 | 12:34 PM
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Originally Posted by Alan 71
Hi SDS,
The stamped information Mike suggested you look for isn't on the head, but is on a pad on the block's top surface.
There will likely be 2 sets of stamped letters and digits.
That will tell you the configuration of the engine when it was originally assembled, when that was, and the vehicle it first was installed in.
Something like this… it could well be painted over. Is this where you looked?
Hope you can find it.
Regards,
Alan

Great - thanks for the pic. No, I was looking in the front of the head - I will check tonight.

Originally Posted by lars
The carb is a commercially rebuilt carb, and is likely to have significant issues, likely to affect performance. It should have a fuel filter in the carb body, so your in-line filter (which appears to be hacked-in on the suction side of the pump)should be removed - filters installed on the suction side are a bad idea, and will result in fuel starvation at elevated rpm when used with the stock diaphragm pump.

Lars
Ok, so for the time being I should just remove the filter from the glass/plastic holder?
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Old Nov 3, 2014 | 12:55 PM
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On second look- is the mechanical fuel pump bypassed completely?
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Old Nov 3, 2014 | 01:36 PM
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This is the carb # that will help indentify what it is.

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Old Nov 3, 2014 | 03:26 PM
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Have you checked for stamps on the pad?

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Old Nov 3, 2014 | 03:28 PM
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Mike: As lars suggested, looks like the PO installed the filter ahead of the fuel pump, although the pics don't show where the filter outlet hose goes. You can see most of the hard line from the pump to the carb in the 3rd pic. Who knows?
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Old Nov 3, 2014 | 06:45 PM
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Originally Posted by Easy Mike
Have you checked for stamps on the pad?

Where?

Originally Posted by 69vette19467
Mike: As lars suggested, looks like the PO installed the filter ahead of the fuel pump, although the pics don't show where the filter outlet hose goes. You can see most of the hard line from the pump to the carb in the 3rd pic. Who knows?
So I need to see where those lines go?
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Old Nov 3, 2014 | 08:42 PM
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Yes, it needs to be sorted out. The hose leaving the filter either goes to the fuel pump inlet or connects to the hard line feeding the carb with an electric fuel pump somewhere between the gas tank and inline filter.
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Old Nov 4, 2014 | 10:03 AM
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Ok, battery totally dead (car would not start even on a jumper box) so I could not pull it in the garage last night. I did trace the fuel line and it does go to the mechanical pump at the front of the engine. I sprayed simple green on the front of the block to expose the information there but it was too cold to get it all the way cleaned off. Is there a better product to try to clean it off?
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Old Nov 4, 2014 | 11:08 AM
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Originally Posted by SDS Photography
Ok, battery totally dead (car would not start even on a jumper box) so I could not pull it in the garage last night. I did trace the fuel line and it does go to the mechanical pump at the front of the engine. I sprayed simple green on the front of the block to expose the information there but it was too cold to get it all the way cleaned off. Is there a better product to try to clean it off?
Gas, paint thinner, acetone, etc..
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Old Nov 4, 2014 | 09:15 PM
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Carb number - 7028212 - truck carb?

Block number? CEA127502 - lost here

Heater core is bypassed, and there is a fuse blocking off a hose from the carb.
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Last edited by SDS Photography; Nov 4, 2014 at 09:31 PM.
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Old Nov 4, 2014 | 09:29 PM
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Originally Posted by SDS Photography
Block number? CZA127502 - lost here
Could it be

CEA127502 ?

If so, possibly an over the counter or warranty GM engine from 1971.
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Old Nov 4, 2014 | 09:37 PM
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Originally Posted by Mike Ward
Could it be

CEA127502 ?

If so, possibly an over the counter or warranty GM engine from 1971.
I just turned the photo and thought the same thing. Well, at least now I know what this dog is.

So, I need to get a hardline from to complete from the hardline to the mechanical pump. What about the rubber line from the passenger valve cover and the blocked line on the carb?
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Old Nov 4, 2014 | 10:58 PM
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Originally Posted by SDS Photography
I just turned the photo and thought the same thing. Well, at least now I know what this dog is.

So, I need to get a hardline from to complete from the hardline to the mechanical pump. What about the rubber line from the passenger valve cover and the blocked line on the carb?
It's normal to have rubber lines before the pump, but not after. You need the correctly shaped S-bend line that connects the fuel tank line mounted on the frame to the inlet side of the pump.
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