I'm working on a budget build S10. Are LS1 headers larger than the stock 5.3? I'm looking for a cheap header. Might get a light rear mount turbo later down the road so a good flowing header is probably a good idea, but I'm not dumping over 200 bucks on a set of headers.

Any ideas? Or should I just stick with the factory 5.3 manifolds?

 

All LS based headers use the same mounting flanges so what size primary tubes you run is up to you.

 

stay with the manifolds if your going to a rear mount turbo at some point!

 

Well I just found out that the truck manifolds won't fit for some reason. So I guess it'll be f-body manifolds anyway.

Are they larger than the truck's?

Is there a chart of factory headers and their primary size?

 

Ive got an entire exhaust setup from my S-10. It has the correct F-body manifolds that have already been modified and the rest of the exhaust all the way back that exits behind the bumper. Let me know if your interested.

I'm swapping to 1 3/4" long tubes and mandrel exhaust.