5.3 in a 1966 F100

Like the title says, Im putting(or I'm tying to
) a 5.3 from a 2001 Tahoe (with a 4L60E) in my '66 2wd F100. Project has only been underway for a week or so, so not much in the way of awesomeness yet. Tore most of the front clip off, and glad I did. Anymore time on the road and some of those fender bolts would NOT have come out. As it was I had to grind the head off one bolt 'cause the nutplate had rotted away to nothing. A couple of them, if they spin, the "easy" way to get them out is apparently to cut a hole in the fender...from the outside.ANYWAYS, only thing left hooked up at the moment is the exhaust and motor mounts, so Im hoping to have the 460/C6 out this week.....hopefully. Truck currently has 4wheel disc courtesy of a '72 front end, and a late '70s Lincoln rear. The goal is to make it a somewhat "economical" daily driver, since I sold the pile of Heep Wrangler that I was running back and forth to work in.

I need to decide what I wanna do for motor mounts, and figure out what I can run for long tube headers. Anyone know where I can find dimensions (like how wide the headers are when bolted on, how far they drop etc) so I can make a guesstimate on what will fit best?
A couple pics to give you all something to look at.... oh and sorry about the pink hue on the one. Camera was acting funky.

Still pondering headers tonight. The market seems to deal with header designs for specific chassis, and obviously a F100 LS swap isnt really common enough to warrant a market for that. Any suggestions of is there a "generic" or close fitting set of longtubes someone could recommend? I have that radius arm crossmember that i must clear.
Im sure I'll end up making the motor mounts so that should give me some leeway, but I could use a nudge in the right direction.
Trending Topics
The Best V8 Stories One Small Block at Time
Ran into some setbacks, but still moving forward slowly.Got around to working on the broken exhaust manifold bolts in the heads. (there were 3 of them) First one took a little drilling but came out no problem. On the 2nd one....things turned BAD quick. Wasn't paying attention for a second and broke the EZ-out off in the head.
OK...I can come back to that. 3rd was right under a spark plug and still sticking out a bit. Figured I would remove the spark plug so I could grab it with some vise-grips. After a couple revolutions, the plug came out. THAT didn't seem right...should have more thread engagement than that. Look at the plug, and its rusty from the seat down about half the threads. Peek in the hole and sure enough someone has completely stripped out half the threads and cross-threaded the rest. YAY. Get to looking at the date...my "junkyard warranty" had expired the day before. COULD have maybe got them to give me a new head, but got to thinking and figured it would take almost $200 to bolt a used head of unknown condition on. (bolts, gaskets, etc)Figured screw it and went for broke. Found a reman'd pair of heads from Thompson Motorsports on Ebay. Called them up and they showed up last week.
Still need the gaskets and bolts, but two rebuilt heads for less than $400 sounded good to me!Headers showed up yesterday. Picked up some cheap pacesetters just in case I need to modify them a bit. Noticed the "this is not high temp paint" sticker right away. lol Anyone have suggestions for repainting them on the cheap? Or is it even worth it?
Now I just need more time...and of course money. Gotta find some plate, DOM tubing and bushings to match so I can rough in some engine mounts and start getting this thing to sit where it fits.

Standalone LS Swap Harnesses IN STOCK!
LSX, LTX Stand alone swap harnesses. S10 LSX conversion PLUG AND PLAY harnesses, 24x conversion PLUG AND PLAY harnesses. LT1 to LSX PLUG AND PLAY Harnesses.
sales@bp-automotive.com
www.bp-automotive.com
1-888-467-4491
Good luck. By the way, we need more pictures.










