engine identification
 

i just picked up this 350. can someone tell me what its out of and if its crap or not? its a two bolt i know, the vin is 3970010 and the the number on the front passenger side under the head is v0129tkb thanks guys. i was told its an "M" block and thats a good thing but im not really sure..

Re: engine identification
 

1976 350 4BBL truck engine 165 HP
http://www.nastyz28.com/gm-chevy-cod...s-suffix-8.php

Re: engine identification
 

what doesthe L LS9 mean? i know it has M on the block not L

Re: engine identification
 

The LS9 is an option code and the M is a casting identification mark used by the foundry.

A 2-bolt block with main studs is quite strong so it is not junk. It is a good foundation to build on.

Re: engine identification
 

use to be a myth around that all 010 blocks where high nickle blocks, I think that was disproved a few years ago.

Re: engine identification
 

so how do i know if its a high nickel block

Re: engine identification
 

there will be a casting there also. I have been thinking about who told me all this. It was an old man that has had a machine shop for ever and a day. just like there are better metal in cranks there were better metal in some blocks. He told me about this about ten years ago when I tool a block into him to get it machined. I wrote this stuff down somewhere but I thing it is at my office. If I cant find it i will give him a call monday and get the info from him again.

Re: engine identification
 

010 020 under the timing cover is high nickel block

Re: engine identification
 

That's correct, the 10 20 indicates the nickel and tin percentages

Re: engine identification
 

remember a 2 bolt can be turned into a 4 bolt

Re: engine identification
 

Actually the 10 would mean the there was 1% more tin to help the metal flow into the cast and the 20 means 2% more nickel was used to make it stronger and it is in the front and rear of the blocks. HIGHLY desired

Re: engine identification
 

Any idea what vintages the high nickel block was made?

Re: engine identification
 

ok i just checked out my block ana it said 010 but directly under that is has 020 then 501 and on the other side it says G18 512 532

anyone know what any of this means?!?

Re: engine identification
 

010 020 is high tin high nickel. its a good base for a performance build. the block is a bit sturdier

Re: engine identification
 

anybody have an idea what it came out of?