Does the L33 and LM7 5.3s use the same intake and injectors?
Do I need to do anything to the intake, injectors, TB, etc when I swap them from my old LM7 onto my new L33 clone? Do the injectors need any maintenance while out? Can I re-use the intake gaskets and O-rings?

 

why not use the TBSS/ new style int manf setup and pick up some
more HP ?

 

Meh, not worth it to me. I need power below 4500 RPM, so I really don't need the mid to top-end gains of the TBSS intake. It's my DD, I've got to drive it home friday, swap motors and drive it to work Monday. The less complexity the better.

I knew there was a TBSS intake, a LM7 intake, and special fuel injectors for L59, but I still don't know if there is anything special about the L33's fuel system.

I did get a email from Justin at BB. he says my stock PCM will run the L33 clone until I get a tune, so that makes the swap easier right there.

Who is a good source for the intake gaskets and injector O-rings?

 

The intakes are exactly the same. The injectors may have a different part number but nothing special about them. You can just swap your old lm7 intake complete with injectors on the l33. And i always reuse the injector o rings if they still look good and the same for the gaskets. Just make sure the gaskets are the green ones.(i think 03-13) I dont like the older orange ones.