I did something similar on mine a few months ago but with a blow torch: Heat till red hot around the manifold, cool the threads a little with pb blaster, little pressure on the threads with wrench. Repeat for about two hours until all were loose. It caught fire several times, but I did this outside surrounded by snow.
The exhaust manifold will be a bit of a project. I don't beleive that the air galley will be salvagable as the attach fittings are pretty rusted onto the manifold. I will soak these in rust penetrant for a couple more days, but most likely I will need to cut off the air galley, remove the fittings and re-tap the holes.
I have two 2400 valve covers, one from the original motor and one that the owner sent. I was not happy with the painted valve cover, although it looks pretty, as it would get dinged by the ZCON judges as not the original finish. Also, it's not the original finish. So, I just decided to clean up the original valve cover. I am much happier with that. Looks much better. Pics below
Hello guys, My 240z has had Fenton mag wheels for about as long as i have the z. They are vintage i had them restored but they where never really wobble free in the steering wheel. Im tired of it and i want a new set. I believe my current et is about -10 or -12 6J. New wheels in 14 inch are for some reason very hard to find. If anyone has links or tips for wheels let me know. I found these here in the Netherlands, but how does that fit? My tires are just new 195/70/14 so i want to put them on my new wheels. https://www.rrwheels.nl/Webshop/Velgen/JR-Wheels-JR19-14x7-ET0-4x100-4x114-3-Gun-Metal-Machined-Lip-JR19147040073GML?_gl=1*1lnpsoo*_up*MQ..*_gs*MQ..&gclid=Cj0KCQjwhYS_BhD2ARIsAJTMMQYjrdrV1uoWUoH-JPr48noPlqm8ACaUM83a714piBIyVVkLIDfB_04aAqfUEALw_wcB
That seems like the best approach, but they are a little pricey. I saw that you used one on the intake manifold tube fitting and was intrigued. I've used a torch and ice cubes in the past, but it was not very effective on the manifold because of its size I think.
The body is now at the weld shop and the replacement panels from KF Vintage have arrived. The welder, Larry, said the panels were very good quality and nice thickness. Panels are now being installed. Pics are below. Work is being done by L&L Restomods. https://www.llrestomods.com/