Factory Magnum Heads

Mopar performance has a set of springs and retainers to use(note these are not behive springs like the factory. if you are doing this on a budget, the retainers MP sells are from a 2.2 litre engine, so you can raid the junkyard.

I bought a set of beehives from hughes and I believe they are just the comp cams blue striped beehives. Hughes has the proper retainers to work with these, but there are two issues. The spring seats need to be cut deeper and the retainer sits higher than the exhaust valve stem tip. This can cause interference issues depending on the rockers used.

The easiest swap is the MP springs and 2.2 litre retainers