Did a search no luck questions..............

[Robby Avery]

Which stock intake runners are the largest? Which will work with lbz and lb7? plain and simple thanks

 

[Chevy1925]

Lbz/lmm/lml are the same size and the largest. They only fit those heads.

Lb7 and lly are the same size and only fit those corresponding heads

 

[mike diesel]

Any intake runner will fit any head. But if you use lbz+ intake runners, you have to use an lbz y-bridge. If you use lb7/lly intake runners, you have to use an lb7 or lly y-bridge.

Lb7/lly intake runners will not work with an lbz+ y-bridge and vice versa.

 

[Dallas S]

Lml have different fuel rail mounts and y bridge mounts. Essentially 01-05, 06-10, 11-15

 

[ikeG]

LB7 do not have the dent or step in them at the turbo, so if you're running a pedestal-style turbo on a LLY you could switch to those and reuse your y bridge.

 

[Chevy1925]

Any intake runner will fit any head. But if you use lbz+ intake runners, you have to use an lbz y-bridge. If you use lb7/lly intake runners, you have to use an lb7 or lly y-bridge.

Lb7/lly intake runners will not work with an lbz+ y-bridge and vice versa.

They will fit but lb7 fuel rails will not work on lly intake runners. Not sure of other years

Not sure why I posted they only fit corresponding heads. Saturday brain fart