Hei!
I renewed, totally, my 1963 T-bird FE390 engine some years ago. The engine runs greatly, all horses are back, and maybe some additional horses too.
All machining work I bought from specialist, cylinder oversize boring, main and camshaft line boring, revision of cylinder heads et cetera. Also total balancing of rotating assembly containing crankshaft, connecting rods, pistons, vibration damper and flywheel was done.
Valve seats, material is for leaded gasoline, were in so good condition that they were only grinded, saving money 500€. I use
lead additive in gasoline and drive only some thousand kilometres in year.
I modified the engine mildly and relatively inexpensive way. I used Comp Cams Xtreme Energy XE256H tuning kit. This camshaft needs idling of 1000 rpm. For ignition I used MSD 8595 distributor, Blaster 2
coil and Street Fire Spark Plug wires. New
carburetor is
Holley 670 cfm Street Avenger. Primary and secondary jets had to be replaced with four number larger ones, to get good idling and the A/F value close 14. I also installed new exhaust system containing two pipes and one free flow
muffler in each pipe.
Some of my comments:
- FE390 engine is simple design, reliable and easy to modify as much you want, and with so much money as you wat to spend.
- If you drive much with your car I recommend to change valve seats to suitable for unleaded gasoline.
- If you have automatic transmission and stock turbine with stall speed 1600 rpm in your T-bird, the idling shall not exceed about 1000 rpm. Otherwise driving comes very difficult. I changed a new turbine with stall speed of 2400 rpm. It works very well.
- One good book is for example: Charles Morris, How to rebuild big-block Ford engines, ISBN 978-1-932494-92-1
- I hope nice days for you in working with your FE390 engine.
Best Regards, from Finland