To start this of this is only an idea right now.

I have a 1986 Camaro with a 5.0L 305 TPI. Then I have a 1991 Chevy Silverado with a 5.7L 350 EFI.

Is it possible to swap these motors?

 

Yes. The main "issue" is the center two intake manifold mount bolts on each side are at a different angle on the '91 than the '86.

 

How big of an issue would that be?

 

the easiest solution would be to buy a holley stealth ram for vortec heads, or do what I did and get a vortec carb intake like the Weiand Stealth that I have.

 

im new here and am interested in same i have a 87 z-28 305 4bbl and have a 98 5,7 from a c1500 cuz i was told the vortec was more powerful but can i make it carb instead of fuel injected? heard there might be a fuel pressure problem due to the vortec head requirements

 

How big of a hassle would that be?

 

En 1 intake bolts mount at a 45 degree angle. The vortex bolts mount vertical, down I to the heads. So you can't use an "old style" gen 1 intake on a vortex head.

 

You need a Vortec intake manifold. Available in carb style.

Easier to get a manifold that fits, but many have done their own modifications to those 4 bolt holes in the intake so that the bolts can be installed.

 

Vortec



Gen 1

 

The engine from the 91 truck would be an L05 350 and NOT a Vortec engine. Your intake would not bolt right up. 1) you would need a new intake, or 2) you would need to enlarge the center two holes in the intake for the bolts to go in. Going to a vortec headed engine you would need a new intake.

 

When you say enlarge the center two holes in the intake... Is that a big issue and what else would i have to do?

 

It isn't a big issue, and that's all you would have to do to get the base to mount to the later engine.

You might be able to trade your base with someone who has an '87-up base and wants an '86-earlier base.

 

So once i do that I can slap the '91 350 right in there?

 

wat about the computer would u have to swap the computer and would the connector b the same but its to a 91 silverado and 89.