i may be working on a set of magnums in the future and am way out of the sb curve. i know they're metal, use a different intake pattern and valve gear.

this will be a minor port match/cleanup and backcut the valves deal.

i get the impression the RT head was never used in production only aftermarket, and they're not to be found?

Last edited by jamesc; 12/09/12 12:44 AM.