What year is this engine?
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From: Glendora CA
What year is this engine?
Looking for some advice from the corvette engine gurus.=left
I have a 72 vert and I am sure the numbers are not matching. The block is a 350 - casting numbers 20GM 3970010. I have other numbers on the passenger side head that say 118143224 followed by what I think is V0128000. Can anyone tell me what engine I have? also, I am thinking I am going to replace the carburetor and want to know the best carburetor for this engine.=left
Thanks to all the experts out there!=left
GlenJack
I have a 72 vert and I am sure the numbers are not matching. The block is a 350 - casting numbers 20GM 3970010. I have other numbers on the passenger side head that say 118143224 followed by what I think is V0128000. Can anyone tell me what engine I have? also, I am thinking I am going to replace the carburetor and want to know the best carburetor for this engine.=left
Thanks to all the experts out there!=left
GlenJack
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On the other side of of the block where you found the 010 number is the casting date. What makes you think the carb on it now is not the best for the engine
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It may well be, but it needs replacing or rebuilding, and I am not skilled enough to rebuild. Right now, I floor it and it lags a little. Or, if not completely warmed up, it may die (when I floor it). I have played with the fuel/air misture and got it about the best it will do, but it is still slow to respond. Wondering if I have the right cfm. This is an edelbrock 1408, which I think is 600 cfm. I'm wondering if 650 cfm may be better. And basically, I just don't know! 
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Here is a quicky pull top and clean up video. Then you can decide how much more carb school you want to do. There are some very good but long videos about jetting, tuning, rebuilds, etc.
Last edited by derekderek; Nov 14, 2018 at 07:06 AM.
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Edelbrocks have got to be one of the easiest carbs to rebuild. You can get a kit from Summit and get it done in a day. Just install the rods last so you dont bend themYou should write down all the jets and rods so you can go to their website or the owners manual and see were you are on their Air fuel chart. It helps tune it of you dont have an Air fuel ratio guage.
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Edelbrocks have got to be one of the easiest carbs to rebuild. You can get a kit from Summit and get it done in a day. Just install the rods last so you dont bend themYou should write down all the jets and rods so you can go to their website or the owners manual and see were you are on their Air fuel chart. It helps tune it of you dont have an Air fuel ratio guage.
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okay they didn't use the letter or number 0 in the engine identifier code. The first one is a c the second one is a c or a g third one cannot be read. CCC is a 307. Cgc is the 350 turbo hydro or police from a 71. You have to get some stripper or something and clean off so that all three of those letters can be read.
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Okay, interesting. Well, it is definitely a 350 so it would not be CCC. I tried to google 350 hydro and 350 police, but I don't see any good information on what those are.
I will look into getting some solvent to remove a little bit of that paint. Thanks for all the information!!
I will look into getting some solvent to remove a little bit of that paint. Thanks for all the information!!
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https://www.corvetteforum.com/forums...df-format.html
down load that Lime Book That has all the engine suffix codes from 55-91.
down load that Lime Book That has all the engine suffix codes from 55-91.
Last edited by Nowhere Man; Nov 15, 2018 at 12:28 PM.
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Okay, did that. Thanks! I think that I have a 71 el camino engine that originally was a 2 barrel carb and a manual trans.
It has an Edelbrock manifold and a 4 barrel 600 cfm Edelbrock carb.
So, I think that is where I am. I will still look to strip a little of the paint away to see the code better, but this is a lot of fun doing a bit of investigation. Thanks for the help, everyone who has contributed thus far!!
It has an Edelbrock manifold and a 4 barrel 600 cfm Edelbrock carb.
So, I think that is where I am. I will still look to strip a little of the paint away to see the code better, but this is a lot of fun doing a bit of investigation. Thanks for the help, everyone who has contributed thus far!!