350/290 crate going into my 58 - any advice?

[62lwbc10]

Hello all it's been awhile since I last posted. I hope you're all well. Apache is ready to come out of winter hibernation and this weekend I will fulfill a long time dream of putting in a new mill. She currently has a very tired oil burning smelly old 305 from a late 70's camaro. I'm hoping to feel a difference with the GM Performance 350/290 crate motor. I haven't done a motor swap since 1987 and I'm sure some of you have performed a similar swap so I am asking for any collective advice you may have. I'm planning to use the universal tubular cradle type front motor mount, please confirm this will work. Currently there are farmer welded garbage motor mounts that someone with some creativity but no skill installed so they have to go. I have questions about the fan. Currently running a flex fan with the old 305 and I hate it. Want to have just a regular old fan with a fan clutch. What size fan should I use? Guy at Jegs said it depends on hose configuration, how much clearance etc. As far as accessories I have none but the alternator. I'm have a more modern radiator that I'm running with the truck as I have a freshly rebuilt TH350 and need the coolant lines. So I just want to install a fan and get a shroud for it at some later point. Any thoughts or suggestions would be appreciated. Will run plain old ram horns for exhaust, are there special plug wires I need in this case? Finally do any of you see any issue with running this 350/290 with the TH350? Possible torque converter concerns?


Thanks in advance for your feedback

Mark