Seeing as you know about oiling and oil through pushrods about the only thing I can think about/read is the mid mount on the block causing header interference. I’m about to test fit my new tti’s to my magnum block (mopar crate 402) and check for clearance etc after the paint dries. I can report back if you like. I know I probably should have done it before paint but I‘m pretty sure I also remember reading on Magnum swap dot com
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Magnum Swap -your source for Mopar engine swap information. ) that he had no problem with tti headers and the mid mount/grinding etc…. I hope I read right. Lol
i included the link above for magnum swap as there’s also lots of other good info there. Like modifying the magnum oil pan gasket to use it with an LA timing cover etc…. (essentially you have to buy two gasket sets for the pan, the magnum gasket set is nice as it‘s the raised rib silicone type and is know for not leaking, you just have to chop the front bit out and use the LA timing case to pan gasket for that spot And use some silicone where they meet…
