I just read through this start-to-finish and it was great... I want to take the Magnum top end from my busted 360 and build basically the same as you did but on a 318 instead. Same kind of bottom end, zero-deck flat tops etc. but with something like this cam
Voodoo Hydraulic Flat Tappet Cam - Chrysler 273-360 268/276 - Lunati Power; the lift with 1.6 rockers would be like .527/.547" though, you think that would be excessive for how these tend to stall past .500"?
I was thinking about just leaving the heads alone, they're untouched iron Magnums but this thread convinced me to get a good valve job done. I'm OK with reusing the factory Magnum valves and Hughes springs/retainers though no G3 Hemi valves lol.
What do you think the HP/Tq curves would be like in comparison to your 360? I'd guess around 40-50 less lb-ft, and mayyybe 20 HP less if I'm lucky?