I've been away for a while and I suck at documenting with photos, so here is the latest:
The 5.3 found it's way in! Here's a pic of the Milodon oil pan made for the 4WDs:
Just after I set the engine in place:
Almost sits too high:
Out of curiosity, I set the factory 4.3 radiator in place to check the clearance:
Tight fit, had to cut that coil pack mount off to clear, but surprisingly, that and shimming the 2 front steering gear mounting tabs, that was ALL I had to modify!
I decided to take a chance and experiment with the truck accessories and the possibility of using the mechanical clutch fan. I couldn't use the GM fan hub, but a guy on S10forum.com told me about using a fan hub from a '95-'97 Ford Explorer 4.0 hub, which is a full inch shorter than the GM unit and screws right on to the GM water pump snout. I was also able to bolt the GM fan assembly right to it:
I bought a upper radiator hose for a full size Silverado. I cut about 1'-2' off each end in order for it to fit to my liking;
Pic of the clutch fan assembly and factory 4.3 upper/lower shroud in place:
I didn't want to risk breaking the brittle tanks on the 4.3 radiator, so I drilled and tapped to 1/8" NPT the top of the water pump:
I really liked the idea of reusing the factory oil filter mount and cooler, so I drilled the in/out side of the cooler facing the engine to 1/2" NPT and used the Milodon remote oil filter hoses only. Here are the holes drilled and tapped:
The top hose looks crooked because it is. There wasn't enough meat in the aluminum to drill straight down so I had to improvise:
Here's a bad pic of the clearance between the factory truck manifold and the stock steering shaft, along with the newly installed Flaming River u-joint:
Even after cutting the EGR provision off the pass side manifold and welding a plate on, it STILL touches the shock tower a tad. I'll deal with that after I hear it run
This is a pic of the driver's side manifold. The collector was pointing straight at the frame, so I cut the collector off, and made another 45 degree angle cut to favor the engine side of the manifold and rewelded the collector, now it points between the front driveshaft and the frame:
Another angle of the modified driver's side manifold:
The pass side collector didnt need to be cut. It was aimed in a good spot. However, the outside of the collector flange was hitting the pass side fender wheel well bracket, so I cut it off. Now it fits!
So it looks like I can reuse the factory 4.3 airbox
As of yesterday, shes alive!!