Hello! I need to order a set of header gaskets for my 340 from Remflex but there seems to be a bit of confusion regarding the part numbers.

I know that 340's have a larger port size than 318's and that the newer Magnum engines have a different configuaration all together. If you look at their web page, I think the pictures for RF6004 and RF6009 are reversed.

I spoke with one of their representatives a few minutes ago but he wasn't really familiar with small block Mopars and recommended PN RF6003 which I think is the small port 318 gasket.

Which part number gasket do I need?

Thanks!

I think the 6009 is the right one for a 340.

Thanks. I believe that is the correrect P/N as well. I called Remflex today but they are closed today due to inclement weather and will be closed through the Holidays starting tomorrow until January. Oh well. It seems to be par for the course for this job that I am doing. I guess we all have those sometimes.

Stan