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PlasticTubaBear27

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Discussion starter · #1 ·
Hello!
I bought a 1974 Chevrolet El Camino (base model) over a year ago. First car/ project car I ever bought. The guy I bought it from, said it was an original California car that was abandoned on a farm in Alabama. Apparently his friend threw in a junkyard 327 SBC and hooked up a Turbo 350 (no clue what kind of gearing or differential). I should also note, there is very little on this car that is stock. I fixed it up and drove it around last year until an issue came up and the engine wouldn't fire up (still turns over). I am aware 74' is not a popular year, and I will not be making money back if I try and sell this thing. I do not plan to sell the car for a very long time. If I wanted to do a hobby to make money, I would've prolly got into stock trading or something. But I digress.
Since it's my first project I want to keep things relatively simple for now. I want to make a fun street car that I can take on a small road trip but also can put out a decent amount of power. I have taken an engine overhaul class so I do have some idea of what I'm doing. I am on a budget, but I am willing to splurge a little in certain areas.

My first issue, I can not for the life of me pinpoint what kind of engine is in this car. The guy told me 327 SBC, but then when I looked up the Casting number, I had sources telling me it was a 350. Here's the engine block info (Photos included below):
  • Block Casting #: 3970010 (see img-2)
  • Vin #: V1004CMB (see img-3)
  • Casting Date: Cannot find (see img-4)
Can anyone help a newbie out and put a dot on what kind of engine I'm looking at?

My next task is making a parts list to overhaul this thing. I'm planning to pull the engine out and rebuild it. As it stands, it has a Rochester Quadrajet Carburetor (17056530) (see img-5), and 896 cylinder heads (379896) (see img-6). Those are all the parts I've identified thus far. I want to replace
  • The carb
  • Cylinder heads
  • Possibly some internals
  • Gaskets
  • and Exhaust headers.
So far I've looked at Holley's 650 CFM Double Pumper Carb (Part Number: 510-0-4777SAEK) and Edelbrock's 650CFM AVS2 (Part Number: EDL-19069). Are either of these options any good for my applications, and if so, what other parts should I use that work well with them (cylinder heads, internals etc.)? Also if anyone knows where I could find a good overhaul gasket kit for this engine, please do tell.

Apologies if the pictures are unclear

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Cool car! Looks solid. I can’t help with casting numbers, but I’m sure someone will be along to help.
I have an edelbrock 600 and not impressed. I would do the 650 Holley instead. You can make decent power with a 327 or a 350. If it’s a 350, you can make a 383 when you rebuild for even more power.
Good luck and enjoy the project!
 
A quick look at Chevelle World 's site shows heads # 3795896 as 64 - 65 , used on 283s and 327s . These heads came with 1.72" sizes intake and 1.5" exhaust valve sizes ,commonly called Power pack heads . The site also shows the CMB suffix block code as 350 C.I. only, yrs 72,75,76,78 and 91 .I think the V1004 is as follows - V = Flint Mi. engine plant , 10 = month , October and 01 day of month Now this may not be all the uses ( as this is a Chevelle site I got info from ) maybe someone will have more info . Really need the casting date off the block to lock it down .
 
Discussion starter · #5 ·
Cool car! Looks solid. I can’t help with casting numbers, but I’m sure someone will be along to help.
I have an edelbrock 600 and not impressed. I would do the 650 Holley instead. You can make decent power with a 327 or a 350. If it’s a 350, you can make a 383 when you rebuild for even more power.
Good luck and enjoy the project!
Thanks man, I'll definitely heed this advice!
 
Discussion starter · #6 ·
A quick look at Chevelle World 's site shows heads # 3795896 as 64 - 65 , used on 283s and 327s . These heads came with 1.72" sizes intake and 1.5" exhaust valve sizes ,commonly called Power pack heads . The site also shows the CMB suffix block code as 350 C.I. only, yrs 72,75,76,78 and 91 .I think the V1004 is as follows - V = Flint Mi. engine plant , 10 = month , October and 01 day of month Now this may not be all the uses ( as this is a Chevelle site I got info from ) maybe someone will have more info . Really need the casting date off the block to lock it down .
Roger, I'll try and find it sometime this week and get back to ya. Thank you m8!
 
I would also buy some small block chevy rebuild books there are a few out there. Some address the true rebuild process and pointers and the other are more how can I get this mouse to make more power books. You should get one of each.
 
The block casting is a 350 2 bolt main that is used in cars and trucks in the 70's. A few truck engines were 4 bolt but I never found one. I have rebuilt many 3970010's using "How to Rebuild Small Block Chevys". Gray cover. Very good manual on what to do and how to do it correctly. I tried Quadrajets and Holleys for years, and found my best solution was the Edelbrock 650 electric choke. Bolt on, adjust, and drive for years.
 
Discussion starter · #11 ·
I would also buy some small block chevy rebuild books there are a few out there. Some address the true rebuild process and pointers and the other are more how can I get this mouse to make more power books. You should get one of each.
Thank you for the advice! Any particular books you would recommend personally?
 
Discussion starter · #12 ·
The block casting is a 350 2 bolt main that is used in cars and trucks in the 70's. A few truck engines were 4 bolt but I never found one. I have rebuilt many 3970010's using "How to Rebuild Small Block Chevys". Gray cover. Very good manual on what to do and how to do it correctly. I tried Quadrajets and Holleys for years, and found my best solution was the Edelbrock 650 electric choke. Bolt on, adjust, and drive for years.
Buying the book now. I'll definitely take a closer look at the Edelbrock, thank you for the advice!
 
Although the books are great for ideas and helping you build your engine, they don't give you real world pricing. Understand that if you want to build your own engine the budget you have in mind should be doubled. Sometimes it is just plain cheaper to buy a crate engine and be done. That also comes with a warranty. Something to think about.
 
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