Help, Engine blew. What will bolt in easy?

[RARA]

You guys have been great with my questions last year. Now, I have a major prob. Took my 70 blazer out for the first nice day this year and the original 307 with only 64,000 miles on it and my truck went. Now I need an engine. I have been calling junkyards for a 350 but dont know if any old 350 will fit. It seem like 1969-1985 are the same but most dont have 350s that old. Will a newer one fit? I dont know if I want to throw down for a new GM Goodrench right now if I dont have too. Any help or advice woud be much appreciated and I promise I will post some pics when shes healthy again.

[dirty trucker]

Well, I don't know near as much as most guys on here, but I do believe that any 350 will bolt right in to your engine mounts and tranny. Your problem with the newer motors is their heads are EFI, which will require different intake for carburators. And I believe the distributors are a problem too.
I think any 350 should work, maybe just have to buy some aftermarket products to convert.

I'm sure, if I'm wrong, I will quickly be corrected. I just seen that no one had answered you yet...

[RARA]

Thanks, one yard says he has a 1988 that runs good out of a 3/4 ton pickup, but none of these guys know about the older stuff.

Sweet lookin Jimmy by the way.

[bouncytruck]

You may need to swap to a short water pump if you plan on using the alternator/PS/AC brackets.

[RARA]

Thanks, Do you know why the 85 and older 350s are different other than the front brackets. On Jegs the crate 350 is a different model for 85 and up.

[DANTES JIMMY]

in 1987 was the first year for fuel injection and a 350 in a half ton truck
prior to that most of the mid 80,s trucks had 305 motors in them but a 3/4 ton had 350's in them suburbans and blazers could get a 350
in 1986 you could get a 350 from gm in a 1/2 ton truck if you got california emissions they robbed so much power for emmisions that they bumped up the cubes
any small block will work depending on what year you get you may have to swap some of the bolt on stuff
even as far as heads if you get a throttle body motor
but if you did that if you bought the whole motor brackets and all i am pretty sure you could make it work
most of the suburbans and blazers and trucks had four bolt main motors in them
from experience be carful buying a junk yard motor esp from an older truck who knows what has been done or who did what to it look in the trader papers

[RARA]

I hear you with the junk yard engine possibly being whooped. I am realy debating on spending the extra grand on a new one with a 3 year warantee even though I dont put much milege on the old girl. Good info, thanks

[hotrodhomi]

hard to beat a new GM crate engine.

[Sammy]

Skipwhite on e-bay has new 350 vortex short-blocks balanced for 1200 with GM backing them up. That would be sweet since they are new not rebuilds with run-sheets. I doubt you could go wrong there.

[Sammy]

Your carb & manifold & heads if good with all your pulleys & stuff would bolt on you would just need a electric fuel pump for the swap.

[RARA]

I will give it a look, thanks