I got some edelbrock shorty headers for 96-97 LT1 and need to know if they will bolt right up to the stock y-pipe without modification?

I know that the driver's side has a 3 bolt flange but how many bolts does the passenger side flange have?? (stock 97y-pipe)

Does anyone have these headers and if so how do you like them? Any advice or tips for install would be greatly appreciated.

-Thanks

 

If they are emissions legal shorties, specifically for the dual cat cars, they will bolt up. On the drivers side, there is the triangular flange, because that has to bolt to the stock cat, which is right up against the stock exhaust manifold. On the passenger side, you have a conventional flange, not triangular.

The whole idea on the emissions legal dual-cat headers is that they do not relocate the stock dual cats.