Header Options for 440 a-body
The Pro Parts headers from Bob Mazzolini Racing are supposed to work well and I believe they come in a bunch of different primary sizes. They are for an RB engine in an A body. I have a set of 2"-2 1/8" stepped, but I'm running a B based stroker. They do require some cutting to the inner fender, but only 2 tubes go through on 1 side and 1 on the other. They're not cheap and they don't come and are not available coated, but from what I've seen they're probably one of the better options. Here's a couple of pics of them mocked up on my engine.
The Pro Parts headers from Bob Mazzolini Racing are supposed to work well and I believe they come in a bunch of different primary sizes. They are for an RB engine in an A body. I have a set of 2"-2 1/8" stepped, but I'm running a B based stroker. They do require some cutting to the inner fender, but only 2 tubes go through on 1 side and 1 on the other. They're not cheap and they don't come and are not available coated, but from what I've seen they're probably one of the better options. Here's a couple of pics of them mocked up on my engine.