bluex
Full Access Member
- Joined
- May 9, 2013
- Posts
- 1,970
- Reaction score
- 2,574
- Location
- Spartanburg SC
- First Name
- Paul
- Truck Year
- 1978
- Truck Model
- C15
- Engine Size
- 350
Check the wiring diagrams for it. If it's setup like a 88-95 GMT400 the speedo goes to the drac an the drac feeds the cluster, cruise an ecm. As long as the drac has power/ground the speedometer should work with everything else removed.
Temp an oil pressure should go direct to the cluster as well. We swapped a 350 in the 95 1500 my son had with an hei and a sniper. All the gauges still worked like factory. Just find a way to adapt the stock sender to your replacement engine an they should work fine.
A carb engine with an hei just needs power an ground to the coil to run, after starting anyhow.
Temp an oil pressure should go direct to the cluster as well. We swapped a 350 in the 95 1500 my son had with an hei and a sniper. All the gauges still worked like factory. Just find a way to adapt the stock sender to your replacement engine an they should work fine.
A carb engine with an hei just needs power an ground to the coil to run, after starting anyhow.
There's so much info out there it's kind of overwhelming LOL Sure would be a lot easier if someone who wants a project would just come buy this thing. 
