Trick flow heads: different installed valve height

My bad. It's a 1998 5.9 Magnum 5.9. so I guess I'll need some Smith Brothers 3/8's hollow tubes for oiling, custom length. I've been getting great positive advice from members on this site. My A727 has been rebuilt for this motor, I'm shopping for a Torque converter for my 408. I sent out my spare 741 rear axle to be upgraded to a 3.91 Auburn SG, with rear discs included. I'm old and disabled, so this will likely be my last major build.