Big Cam 400 tips

Make sure your STC oil lines are not the cause of the leak---Good Luck

 

No problem, if you ever need the rocker gasket or rocker cover part numbers let me know, I find that when chasing a leak new gasketS just give me peace of mind.

 

Not to the ones on my KW yet, although we are going to need one done soon, the other K100 we bought had one of it's cylinders laying in the side box when we got it.

I did have the one on my GMC rebuilt and the guy didn't seem to have any problem with it.

 

It could come down to maybe having to try a few out from a junkyard to see if you can find a good one.

The one that came of my GMC had a screw in cap, I have never looked at the one of the K100 to see how it is.

 

They sell repair kits for those cylinders but there's at least a couple different styles and it's been a long time so I can't remember the details. Your VIN should get you the kit #. It wouldn't hurt to take your cylinder along.

 

Some will say that the variable timing that comes with the STC is a good reason to keep it, IMO the cost to maintain it if something were to go wrong out weighs the benifits. That engine would not be that hard to put a set of normal top stop injectors in it and block all the oil ports to do away with the STC. Then you would have an engine similar to a 676cpl.

I would second the BC3, but that will require a radiatior change to go with the high flow cooling that the BC3 has versus what you have now. Also I wouldnt change anything until something stopped working with the STC, then I would start changing parts.

 

You could probably rebuild it yourself. We used to install kits in them and it really wasn't a big deal, I just can't recall how they come apart it's been so long.

STC engines had some issues but they were resolved with updates. They perform good when they're right. I don't really care for them but many got good service out of them with little trouble. Getting to know them takes a bit but it could work for you if you want it to.