Wow! I knew it’s been a few minutes since I updated this thread but didn’t realize its been this long! The good news is a lot of progress has been happening for the past year. Actually, progress has been happening for the past several years building components, like axles, transfercase, transmission, steering column, etc. but it wasn’t until February of 2023 when I finally moved the actual rig in the garage and started the cleanup and assembly.
For those that may have missed the progress on Instagram here she goes… I’m going to try to do an update every day or so until this thread is caught up.
First up is the engine. The original plan was to use a 60’s 292 straight 6 with (EFI) with a 465/205 and use a 9.5” semi float rear axle in the spirit of keeping the entire rig light, unlike the fat pig my K10 is at 8,500 lbs. Well, that engine turned out to be complete turd when I opened it up and rebuilding it didn’t make sense when I had a good TBI 350 laying on the floor. So, I went through the motions to refresh the 350 and Rob bought a L29 454 then ended up with an 8.1L. Part of our arrangement for the installation and lifetime labor warranty (

) I ended up with his L29.
Of course, the L29 needed the treatment where it got resealed, all new components and a fresh coat of paint.
While it was torn down, I canned the 4x reluctor wheel and replaced it with a L21 24x reluctor in order to be able to use the 0411 ECM like our 8.1Ls use. Although, I do plan on using the L29 distributor and not do coil near plug like a L21 454. One of the things I absolutely hate about LS engines and 8.1L is the fact they are so gawd dam ugly with the coil packs on the valve covers. I totally get it that the dizzys in 96 and later GM V8s were trash, I still don’t want coil near plug. I’ll be happy to carry an extra dizzy or 2 with me.
The next thing that happened in the Spring of 2022 was once the decision was made to go with a Big Block, I felt more comfortable moving to a different rear axle besides the 9.5” semi floater that I had already built for it. As luck would have it, there was a guy in our Cars and Coffee club with a 72 C10 with a leaf spring Dana 60 in the rear with a horrible pinion seal leak. Someone talked him into a 14 BFF with 2.73 gears so he could get some fuel economy on the highway (Ya, don’t even get me started on that ordeal). Fortunately, this guys poor decision was a good score for me as I got his 4:10 full-floating Dana 60 for $50! Now some would say, why not a 14 BFF. Well, good question….when he first offered me this axle I didn’t think much about it then when I started looking at selectable lockers there are far more options for a Dana 60 over a 14 BFF all day long. I’ve already ran Detroit Lockers in 14 bolts and will never do that again, I already have an ARB in the 14 BFF in the K10 and love it, but its finicky and I want something different, which will be a cable operated OX locker for the D60. I’ve already built the axle but probably won’t add the OX locker until its roadworthy.
Typical backing plate wear marks
Typical backing plate repair
And it has slip-off drums! I didn’t realize D60 full-floaters were slip offs back then. And don’t even ask about rear disk brake swaps. I don’t participate in those
Then February 2023 rolled around and I finally brought the carcass inside to begin the building. At this point, is like a big model car kit with all the main bits ready to fly. Pretty much just clean up the tub and frame then start bolting it together.
This rig had the most cracked up floor of any K5 I’ve ever seen!
Funny things
Pretty clean machine
After busting my ass a few times on the frame horns, they got bumper pads!