Answered my own question about the air injector. I had pulled one off a 390 T-Bird in the bone yard some time back and found it last weekend. The threads are indeed 1/2-20. Ordered some blackox setscrews to fit. My FPA ceramic coated headers should arrive first week of Sept so I'm trying to prep for the installation. Thinking I might wanna start a new thread as this one is starting to creep and I have a few more questions. If the mods feel I should start a new thread feel free to let me know. Onto the bonus round.
Motor Mount funI was crawling around under the Fairlane yesterday and noticed the motor mounts are looking not-so-good.. not in half yet but pretty sad shape. The driver side was missing one of the 3 bolts on the block side. I ordered some new mounts today and I'll be replacing all the hardware with grade 8 bolts when I do the swap. Anyone know off the top of their head what size the three bolts on the block side are? Maybe 1/2-13? I cannot get a bolt in there to test as the hole is currently a little out of alignment and I don't want to take one of the two remaining out. I'd like to have the hardware in hand before I pull the old parts. Here is a pic of the missing bolt whose size I'm looking for:
More on motor mounts. I'd like to modify the new mounts, I believe it's called "pinning"? Drill two through holes, countersink one side and install bolts through the entire setup nutting the backside as illustrated in these pics.:
My question is with the countersunk side facing the frame landing flush, is there space on the block mounting side for the retaining nuts?
This example I found they welded the nuts on so they to not come off after the weight of the block compresses the rubber. I'd probably use Loctite or drill holes in the nuts for some safety wire. The mounts on my 390 are nearly flat and I cannot tell if there is any space at all on the block side. I'd love to do this mod but would hate to run into interference issues. The different pics of my C6ME-A block online are not very conclusive. Any ideas how much space I have to work with on the block side?
Cam recommendations~intakeI'm going to have to pull my radiator (more on that later) and I'm thinking as long as I'm in there I might replace the stock cam to help the FE breathe a bit easier. My 390 is an "H" code/2V.. low compression (9.5:1) that came with a 2 barrel carb... yay pump gas!
I'm not planning any lower end work any time soon if I can avoid it so it's staying 9.5:1 for the time being. Anyway, I'd love to get a better CAM that I can install without having to make changes to the existing valve train (rockers, rods, springs, etc.). I'm not looking to give the Fairlane a sound like it's got a huge rock crusher in it. Just like to increase performance a hair and perhaps get better mileage outta it. I have C7AE-A heads if that helps at all. I've heard the Comp 268H is a good candidate for a painless swap out. Good.. bad.. hell no.. something better? Totally at the mercy of your collective expertise here. Also.. is there an off the shelf~bolt on intake I can lay hands on for a few hundred bucks that is worth the investment over the stock/cast iron dual plane? Stock has to come off to get at the lifters if I replace the cam.. long as I'm in there right?
Fan funNot sure if it's because my Fairlane has past damage to the front clip but for some reason replacement radiators do not fit well in front of my fan clutch. The current rad that came with the car when I got it is a 3 core just a "C" hair over 2" thick and has maybe 1/4" clearance from the fan clutch. I bought a supposed exact copy from Autocrafters last summer, it's about 3" thick and will not fit with my fan clutch installed. I have not been able to locate a shorter fan clutch for my application anywhere. I tried the new radiator with a pair of 10" thermostatically controlled fans but they could not keep up and temps got over 210F earlier this summer. I pulled the new rad.. had a quick repair done to the old rad and stuffed it back in. Now that repair is starting to leak again and the radiator shop guy says it's time to recore, he won't quick repair it again. I still have the "new" radiator and am thinking of using it again minus a clutch with a Flex-a-lite high performance flex fan on a solid adapter cut to proper length. Is this going to cause me issues with the fan running 100% engine RPM? I know I'll lose some mileage/power and probably gain some noise but I'm currently out of cost effective options.
Thanks in advance