Just picked up an LT4 swapped '86 C10

[F/51 LRS]

Hey y'all, I just picked up a new to me '86 C10 Silverado with a '96 LT4 swap. Working through some issues with it, but the intent is to daily drive it so I can sell my newer truck & get rid of any car payments! Working on tracking down why I experienced massive oil loss (2 quarts in ~250 miles) without seeing or smelling burning oil. The front of the engine was wet so put new timing cover gaskets/seals in. Hopefully that helps.



Next up is fixing the amateur hour wiring job one of the previous owners did (i.e. turn signals only work when headlights are off). Anyway, glad to be here & I expect I'll be spending an inordinate amount of time on the forum as I work through everything.

[Slammed84]

Nice rig! Sucks you're eating oil though, might be time to bust out the bore scope and take a look in the cylinders. Its either burning it or leaking it, not many options for losing that much oil that quickly.

As far as wiring goes, should be pretty simple to track down if you have a decent schematic and a DMM. If you need any electrical help just holler

[F/51 LRS]

Originally Posted by Slammed84

Nice rig! Sucks you're eating oil though, might be time to bust out the bore scope and take a look in the cylinders. Its either burning it or leaking it, not many options for losing that much oil that quickly.

As far as wiring goes, should be pretty simple to track down if you have a decent schematic and a DMM. If you need any electrical help just holler

Thanks! My concern is it's either the rings or valve seals - the threads on my plugs were soaked, though the tips were dry. One is a pain, the other is a giant pain.

I may end up pulling all the random aftermarket wiring the guy did out & redoing it properly. Can't stand to have stuff rigged.

[Slammed84]

Originally Posted by F/51 LRS

Thanks! My concern is it's either the rings or valve seals - the treads on my plus were soaked, though the tips were dry. One is a pain, the other is a giant pain.

I may end up pulling all the random aftermarket wiring the guy did out & redoing it properly. Can't stand to have stuff rigged.

I recently redid my entire engine compartment harness, found all the old style Delphi bulkhead connectors and the terminals that they use. I'm talking about the bulkhead connector that feeds through the firewall from the fuse block. Did some cool tricks with it as well, running some extra 12v and ground wires through the connector and the back out another connector to hide electric fan wiring and other non-stock electrical but its all hidden in seemingly stock wiring harness.

[kipps]

It's pretty rare to see a gen2 SBC swap! Do you have any engine bay pics? Those 1990's LT1 and LT4 engines were some of the best looking engines out there.

[Shifty One]

Good looking Square!