It was suggested to me to stay away from 191's because I will be towing and they tend to increase heat...Looking at these DV's and they seem to be the best of both worlds??? Any thoughts on them instead of the 181's ?

http://www.pdrdiesel.com/products/Cu...es-889-35.html

 

http://www.pdrdiesel.com/products/Cu...es-889-35.html

 

I'm going to be getting a set of those from PDR after my motor is redone and I get some bigger sticks along with a larger charger than my B-1 now.

The 181's in my 97 did fine, made in excess of 400 rwhp with some DDP 2's. With those sticks, it towed well, ran about 1200*, but the B-1 is on the smallish side for my setup. I'm only upgrading to keep up with the new charger.

 

How soon are you switching....I'd really like to find a set of used 181's

 

You have 181's in a 180 pump, which you have. You won't see any change if you put another set of 181's in your truck.

 

My truck is CA emissions with 131 dv's from what I have been told. I will double check them when I change them.

Does anyone know any other way to tell? Like the engine tag maybe?

 

If you get the S/N or even the P/N off the pump and call an injection shop, they should tell you. Probably less work to just pull a DV out though.

 

Are they stamped directly on the valve?

 

Yes, on top.