Looking for a good condition used or new distributor for an 89' 454
After market one might work if it was complete. What do you have?
After market one might work if it was complete. What do you have?
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
Ignition distributor 89' 454
- Thread starter bradshawtech
- Start date
SBC and BBC are the same (unless it is a 366 or 427 tall deck BBC).
Thought so, Just gave the details as I wanted to make sure. Question 4X4High, what moves or adjusts the timing to advance on these dists. is it a electric motor or somehow is it done through the ECM? My concern here is that I do not think that I am getting any advance out of my system. Loss of power and black smoke when I was climing the hills of CA.
Timing is controlled through the ECM. The distributors on all the GM fuel injected vehicles do not have a vacuum advance or mechanical advance. It's easy enough to tell if you're getting advance. Throw a timing light on the truck without disconnecting the EST wire and the timing should be somewhere around 20-25* advanced. Once you pull the EST wire you should be at zero (TDC).
Ok i was reading some threads from the past and get that the ecm changes the timing but I wonder how it does it. The rotor is not advancing so I just don't see how it advances.
