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89 K3500 wiring questions

I'm chasing down a few wiring issues on my 89 K3500 big block (currently 366, was originally a 454). Regarding the Fuel/Oil pressure switch, I don't see one on this swapped motor. The PO installed a single wire oil sending unit (I connected the tan wire to it). The other 2 wires in this loom...
- Rktman
- Thread
- Mar 8, 2021
- Replies: 2
- Forum: Engine Performance + Maintenance
R
89 K3500 Big block replacement

Greetings gents, I recently purchased an 89 Chevy 1 ton 4x4 auto with a TBI 366 big block. Originally it was the 454 TBI and the prev. owner replaced it with the tall deck 366. He said he thought it spun a bearing so I may be replacing it once I get it running (fixing wires now due to...
- Rktman
- Thread
- Mar 3, 2021
- Replies: 11
- Forum: Engine Performance + Maintenance