here are the numbers off the block
first 2 numbers are on the smooth flange at the front of the block top # v1122tyz
bottom # c7z135242 the number on the back of the block is 3970010 im trying to find out what it came out of and the year i was told it came out of a 69 or 70 vette but who knows
thanks
John

TYZ is a truck code. All truck codes start with "T", and almost all car codes start with "C". Just too logical!

According to my suffix book, TYZ is 75, 76, or 77 350 with 4 bbl and auto tranny out of 2wd/4wd 1/2 ton or 3/4 ton truck.

Here we go with a "vette" engine again. I still aint figured why people trying to sell you an engine will 9 out of 10 times say it's a vette engine..

But here's what my info shows

1975 TYZ 350 conv.cab L vin LS9 165 HP 4bb used in C-10 to 2500 trucks

v1122 would decode like this...

built at Flint (Engine)plant, on Nov 22