can i block the DOD towers and not go into the bottom end to prevent future problems?

 

Turn off the DOD in the tune and forget about it.

You can also run a non DOD valley cover or plug the towers. But just disabling it is fine.

 

You can deactivate the DOD system in tuning, we do offer this as well with our Mycalibrator device. This does still leave the problematic lifters in the engine though.

 

True it does leave the problem lifters in there.

Isn't the most common failure with them the collapsable portion of them? If they no longer collapse, they should last longer... Should.

One of the issues here though is if you put standard lifters in it you have to put a standard cam in there. So that's quite a bit of getting into the bottom end..

 

I heard the problem with DOD lifters was they STAYED collapsed, giving you a 4 cyl. engine full time

 

A collapsed lifter will be noisy and have excessive wear. Eventually this lifter will come apart putting metal into the oil/engine, and well it's real bad from there.

Changing the lifter out can require changing the cam if you were looking for the added performance, we offer kits that allow you to keep the stock cam if you would like too.

 

I get all that.

What I'm saying is this, the problem with DOD lifters is they get stuck in the collapsed position. If you disable the DOD and they never collapse again, then problem is essentially solved.

There's many threads where people changed the DOD lifters and didn't change the cam and had a misfire, the cam profile on the DOD cylinders is different and if you put in non DOD lifters you need a non DOD cam.