Intake swap

[zach_rabey]

I have a 5.3 sbc out of a 1991 c1500 that I was wondering if there were any fuel injected intake manifolds that would bolt right to my engine. Like would a trail blazer ss intake work or is there something else that would work?

 

[454cid]

I have a 5.3 sbc out of a 1991 c1500

Double check those numbers. Assuming it's the original engine, either it's not a 5.3, or it's not a 1991.

 

[zach_rabey]

Ok I'm gonna start tearing into it here soon. And it's a 91 and my dad has said it's a 5.3 and I know it has the tbi

 

[RDF1]

Ok I'm gonna start tearing into it here soon. And it's a 91 and my dad has said it's a 5.3 and I know it has the tbi

Post a picture of the engine bay.
I think you might be confused on engine size.

 

[454cid]

Ok I'm gonna start tearing into it here soon. And it's a 91 and my dad has said it's a 5.3 and I know it has the tbi

You'll have a 305 (5.0L) or a 350 (5.7L). There is no 5.3L TBI. The later intake manifold from a Trailblazer will not work for you. It's a completely different engine. Others here will likley have suggestions for something you can use, as plenty of people have modified TBI engines.

 

[GoToGuy]

A 5.3 does not look like any small block . 4.8, 5.3, 6.0 and so on are LS engines . Could yours be 4.3 ?

 

[zach_rabey]

Maybe I'll have to look into it