Thanks!

Thanks. In general, is the Blue connector on both exactly same with only the Red/Green connectors being different? Just curious.

Ok thanks. Right, I was going to swap just the BDW TB for the DBC TB, but perhaps swapping the complete intake would make most sense at this point? If I didn't have issues with the OBDLink for the...

Long story short, I have a PCM from a 1999 4.8/5.3 (Red/Blue connectors) and as of tomorrow will instead end up with a 2004 5.3L L59 engine which looks like uses the PCM with Blue/Green connectors....

Fast355, interesting. I would have thought it would basically be similar to having the old school timing off as you adjust the distributor and may run rough due to it being retarded too far....

oh, that could be! I didn't think of the rusty water...wonder if I should try sucking that out, or if maybe the head gasket is bad? Hmmm

That's all it would be for, just an engine stand test. I was just curious if it would even run though being I'd think since the computer is configured for a 5.3L, therefore the timing of...

Am wondering if a 4.8L will run using an ECM configured for 5.3L and if so, how well will it run. Basically, I bought an ECM configured for a 5.3L with VATS disabled thinking I had a 5.3L. But it...

LeMarky, I did find that info about the stroke plus looking at stamp on crank, which next step will be to check the stamp on crank out since it will be next easiest and I have to replace the oil pan...

As I am learning about these fun engines, I think I just found out I was sold a 4.8L instead of a 5.3L like was advertised/written on receipt. :mad1: I have upload a picture for some expert knowledge...

Thanks guys!

Hello, am an old school type of guy that was convince LS is the way to go for relatively easy upgrades and parts are easy to find. Am overwhelmed with all the information on what should/should not be...