Hey...well, i was planning on putting a fresh new 350 in my car in the coming month but that has unfortunately fell thru and wont happen till mid summer. So, since my baby is getting the shaft, I thought I should at least do something nice for her..and me. I'm gonna get myself some new SLP headers My question to you guys is what size should i get. I plan on putting these on the new 350 when i get it so which header size will work? I think I can still use the bigger size for my 305 correct? I remember reading that you can, but correct me if i'm wrong. This should all make sense hopefully, so if someone could fill me in, i'd be gratefull.

 

Hmm, it says here in my SLP catalog that they recommend 1-5/8" tube size for 305's and 1-3/4" for the 350's. I could use the 13/4" for my car w/o problem couldnt I? Cause I aint gonna shell out 600 bucks for these if I cant use them on my 305...

 

As long as you plan on putting a 350 into it, go with the 1 3/4.

 

They will still work on the 305.