Indy LAX Cyl Head on a Magnum

All,

I have been searching for details on swapping a LAX head on a Magnum 5.9 block. Can someone point me in the right direction please? I have some adj SS PRW Roller rockers with hollow Comp 7958 Hi Techpush rods currently in my 367 setup. I "guess" the PR's won't be correct any more due to possible length issues as this was a zero deck motor and we searched for these for a correct length. It will need to be remeasured.

Thanks,
Marion