i looked at a 350 block today its uh 4 bolt mains (straight) anyways, i wrote down the casting numbers :

timing cover area :

010
776509 (might have been an s)

and then over to the right side was G36


and then on top of the block by the cyl heads area was

v1214tbd
c9F3835 (s?) 9


im not positive if those are corerect cuz it was really hard to tell but guy said it was out of a late 70's truck?

any info on that?


i did a google and these numbers arent anywhere.

 

well damnit. i looked like 15 threads down and it took me to the main page of a page i looked at before and i clicked on the uh "locations" thing and uh. i dunno what the hell i got my numbers for, lol, no wonder they dont match anything, because i didnt get them from the right place. LOL. i guess ill print it out and check it tomorrow.

 

www.mortec.com should clarify all the casting numbers you can dig up.

 

that is the website i was referring to in my posts.

i still dunno wtf these numbers are. they dont match anything ive found yet.

 

v1214tbd

V = Flint engine plant
1214 = Dec 14
TBD was used in 3 different years but all say it's a 350. It was used in 1970, 71 and 79 all in 1/2 tons to 1 ton trucks.

The c9F3835 (s?) 9 is the last part of the vehicles original VIN number

I can't find my reference but the 010 in the timing cover area should be 10% nickle casting (very strong block)

 

oh no ****? thats awesome.

uhm. so i gonna print out the page and take it school with me in them orning, anything i should look out for besides the obvioyus like cracks/gapin holes/ rust, etc? like... i dunno... stuff i need to look out for

the block is WELL taken care of, my teacher oiled the cyls and the journals etc, and then wrapped it in saran wrap. standard bore block, he wants 75 bucks for it.

i guess im gonna do it.

 

Those are the suffix codes, not the casting numbers. 010 on the front cover refers to 1% added nickel, instead of straight cast iron.

 

should i buy the block?

std bore

4 bolt (straight)

well kept


and the uh.. nickle stuff.

75 bucks sound good?

when i get itm agna fluxed if it turns out to be fuxed i can return it to him no problem.

 

Sure

 

Are you sure it's only 1%. I thought it was either 5% or 10%. I still can't find my reference.

Yes buy the block. Any nickle content 010 casting is worth the money. There's nothing special about being a 4 bolt block. Anyone who builds an engine powerful enough to need a 4 bolt will stud the block anyway and even a 2 bolt block studded is strong enough for most people. Just about every truck block is a 4 bolt.

 

Sorry i meant that 010 means 1% tin and 020 means 2% nickel. If its just 010 and no 020 under the cover then its just 1% added nickel.

It would be awful hard to alloy a cast iron with 10% nickel, if not impossible. It would be very hypereutectic.

 

uh.

 

3970010

69-80 2 or 4 bolt



we took it out of the wrapping and cleaned the blokc of all grease (in the cyls) found some nicks in the cyls, took it to a machine shop and he said 30 over "might" get it out but why risk it when buildin your 383, so im gonna take it back and jones will give me another block until i find the "right one", he has like 6 of them.

machine guy said the block was fine,. but didnt know if 30 over would get the nicks out.. he said 40 over would prorably get it.

 

.030 or .040 over is perfectly fine. Even .060 is not really a problem.

Don't worry about it. Like others have said, it'll take A LOT of power, or some severe problems to risk breaking a block.

 

010 or 020 casting marks in the timing cover area are still good. Just means it's a stronger block than normal. I still can't find my reference but 1% and 2% sound right.

Taking a 350 block out to .060" isn't uncommon but few do it. Chances are there won't be a problem. Let the machine shop take it out to .030" and let them decide if it will be good enough. Trouble is they should have new pistons before doing the final bore/hone so the can check clearances.

 

no like. i want a 383, and they arent sure if 30 over is going to clean the small nicks in these two cylinders, we dont know how they got there, but they are there.

basically, i have access to about 6 other blocks that im gonna have them look at before i spend ANY money on making my engine.


i dont want a 60 over with a 400 cank, thats like a 387 or some weird ****.

 

.040 over will make a 385. .060 over will make a 388. What's so special about the number 383? Bore makes HP, stroke makes torque. Make a 388 and tell everyone it's a 383. They won't know you have 5 more cubic inches. If most good engines can make 1 HP per cubic inch then that's 5 more hp just from more of an overbore.

My 454 block is bored out .070 and makes a 469. Everyone who only bores them out to .060 get 468 which is a common CID for a BBC. At least with the .070 overbore, I use Dodge 440 piston rings which are the same size.

 

Thats not true, cylinder pressure make torque and hp. The more gas you burn the more power you make.