SBC Engine numbers

[Sun Baked]

I have a crusty engine in my 1965 C10 and having a heckofatime finding what it is and if I keep it old school or trade it for a complete LS 5.3 / 4L60E setup a guy wants to trade.

I'm assuming the 1st couple numbers but what I can read is 70010

And under the alternator is two sets of numbers as follows:
V0429TDB
C8A168256

that's where it gets me, why would there be multiple?
Is there somewhere else I need to be looking?

Thank you for letting me pick your brain.

[Grumpy old man]

The smaller numbers are the vin of the car or later model truck it came from , The V0429TDB are the engine codes . Is the dip stick on the drivers or passengers side?

a quick looks shows TDB to be a 72-80 307 The V shows as a Flint built engine

https://www.nastyz28.com/gm-chevy-co...s-suffix-7.php

[Sun Baked]

Drivers side dipstick

[Getter-Done]

V= Flint
04=April
15 = 15th day of the Month

Link:https://nastyz28.com/gm-chevy-codes/...s-suffix-7.php

TDB = 1972 307 or 1980 ?

[Grumpy old man]

I'd be doing some more checking the 0010 is a good block and from what I've seen usually signifies a 350 ? is it a 2 barrel or 4 barrel carb ? I'd have to pull the oil pan and check if it's a 2 or 4 bolt main before I'd trade it away , Maybe the guy wanting to trade for it sees something we can't ? post a picture of the whole engine .

[pjmoreland]

There should be a casting date code on the passenger side top back of the block behind the intake manifold. The last digit will be the year.

[Sun Baked]

I've been all over that engine gawd knows what I have disconnected (wires need cleaned up anyway)
I'm about ready to pull it so I can see 👀 but I'll check on passengers side once I warm up a bit.

[Grumpy old man]

There's a LOT going on there , late model power brake booster , should pull vacuum from port on the manifold in front of the distributor not the carb , pcv isn't hooked up should go to the port currently used by the brake booster , Long water pump and altenator on passenger side along with type of valve covers looks like 1980 .

What transmission is in it ? post a picture of the whole truck .

[Steeveedee]

Yes! And there appears to be no check valve in the booster! I'd also rotate the throttle linkage rod 180º on the firewall side lever so that the pull isn't so far off-axis. That's minor, though.

[Sun Baked]

Yeah it was cobbled when I got the truck and after I installed the crossmember and brake booster I also cobbled it to test the brake function.

That's what I found when I went to adjust the clutch and that matched the quality white paint that was implement paint with a PAINTBRUSH.

That's what happens when you grab a trailer friend and drive 4hrs to get a marketplace "Good deal" trying to replace my beloved 1966 k10,

[leftybass209]

Identifying the motor is one thing. It could already be a .60 over block too. Regardless of what the numbers say it was born as, I'd be more interested to see what any machining work or lack thereof says about it NOW.

I'd question anyone wanting to trade an LS for an unknown SBC straight up, just right off the bat. Either can be picked from a yard for the same amount, and i'd snag a newer roller block over old school any day of the week.

That aside, after the LS and trans is aquired, another large chunk of money is mandatory to make sure it actually runs. Trans controller, ECU or EFI swap, motor mounts, radiator, accessories, gauges, trans mount, possible rear gearing, brakes to stop it, etc. You could scrape by and piece a lot of it together, or open your wallet and start counting by the thousand.

[MJN]

As stated above TDB suffix was used on 1972 307 and 1980 350 truck engines. Given the block casting is 3970010 that rules out the 307. 307 block castings were 3970020, 3970024, 3956632, 3932371, 3932373, 3941174, 3914636, 3914635. Appears you have a 1980 350 175hp truck engine (blue paint is a clue as well), you will still have to pull the pan to determine if it is a 2 bolt or 4 bolt main.

[Peanut74]

Hope you have better luck than me. I have hit all the sites I can find including here and haven't figured out what I have yet.

My problem is my last three alpha characters don't match any data base I have found:
V0430FSD
CF/203864 (Could be "CE" which would be for a warranty replacement)

[CAMAROBOY68SS]

Originally Posted by Peanut74

Hope you have better luck than me. I have hit all the sites I can find including here and haven't figured out what I have yet.

My problem is my last three alpha characters don't match any data base I have found:
V0430FSD
CF/203864 (Could be "CE" which would be for a warranty replacement)

with something like that, your gonna need the block casting number and casting date off the back of the block to help narrow down the search because might have misread a letter when pulling it off the pad.