AuroraGirl
Full Access Member
- Joined
- Sep 8, 2019
- Posts
- 9,693
- Reaction score
- 6,857
- Location
- Northern Wisconsin
- First Name
- Taylor
- Truck Year
- 1978, 1980
- Truck Model
- K10, K25
- Engine Size
- 400(?), 350
Your truck if thats the original engine originally had a HD emissions package, if you had a SPID(Service Parts Identification Label found in glovebox) which:You must be registered for see images attach
Gauge doesn’t say anything. Dunno if it’s original or not. And fuel filler cap does say something but I can’t remember what. It’s not the right style for the bed, but they did say the bed has been changed.
You must be registered for see images attach
You must be registered for see images attach
nevermind, apparently a 78 K10 would just say "Fuel" no matter what. That above is my 78 k10 with standard emissions, it says fuel but that must have a been a 78 thing and only would say diesel my guess if not fuel. Do you have the label to your truck? On mine its in the right column, says standard emissions. My truck "probably" would use Light Duty plug and gap, but i dont know this 100%
I MAY have the VECI (found on the stock air cleaner, tells you emissions stuff + hose routing) to this 78 k10, which had a 400. But that wouldnt be the same thing called for.