which 350s 1980 k20

[1980]

Hey Guys,
I have a 1980 k20 Silverado. This is the hd model, so no cat or emission.
I blew a head gasket. I want to rebuild this 350 (my first time). I'd like to get another engine that is a easy bolt in while I'm doing the rebuild.
The question is which years will work. When I looked at a crate engine it stated 1980 to 1985, when I looked at rebuild kits it is 1969 to 1980. What are my options in years in case I run across a donor truck or car?

 

[mudboggink5]

I think any carbed 350 would work. Your issue may only be exhaust manifolds, unless you run headers.

 

[76zimmer]

80 model year the dipstick went from drivers to pass side.

 

[1980]

OK, ,,What year did the switch from carbs occur?

 

[Big Ray]

OK, ,,What year did the switch from carbs occur?

1987 tbi started

 

[79rustyk10]

Any carbureted small block 1985 and older will just slide right in, in place of the 350 already there. In 1986 they went to a one peice rear main seal, and the flexplate has a smaller bolt circle where it bolts to the crank.

 

[76zimmer]

drivers side exhaust manifold from an 80+ won't work on a 79 and older block because of the dipstick.

 

[79rustyk10]

Ive nver had issues, but most of my junk is all drivers side dipstick.

And I usually end up with hearders too.