headers that are compatible with ls1
The good ol' 350 has siamese intake/exhaust ports, meaning two next to each other. That's why the two inside tubes on a 350 are together and the other two are at the ends of the head. LSx engines have evenly spaced ports.
I have seen people modify BBC headers to fit and 5.0L ford headers to fit since they are both closer to the design of a LSx engine. Otherwise you can just build a complete set of headers. Or see if you can fit a set of headers for a late model LS1 car in to your conversion vehicle.







