I'm looking for the best option for upgraded valve springs. I've got the air for 500-550hp and I will have the fuel whenever my buddy buys my smaller 7x.009 injectors so I can upgrade. I found Hamilton 103# and CPP 103# valve springs. The obvious choice will be the CPP for $100 cheaper. I came across this company that sells through eBay and was wondering if anyone has any experience with them. The name is StreetSportIndustries they have 103# valve springs listed for almost the same price as the crowler 110# springs. The link is http://www.ebay.com/itm/98-5-07-For-Cummins-5-9-6BT-24V-103-Upgraded-High-RPM-Valve-Spring-set-of-24-/311756186784?_trksid=p2141725.m3641.l6368 to the posting. If they are a legit company and someone can verify the springs wont break on me and are what they are listed as I will purchase them. Any money I can save I will as I've got a list of 2400+ dollars worth of parts waiting to be purchased.

3 hours ago, jlbayes said:

 

That would be on Cummins. I'm talking on the Dodge side of the court.

Do you have any info that would help answer my question on my previous response? or other thread?

I didn't see the other thread. Off the top of my head, it should be a direct swap. Use the rubber flex line from the disc truck. You may want to swap proportioning valves and/or master cylinders. Just going off of what I remember from others doing it.

I can get whatever I want involving the rear axle off the truck whenever i do it. How does one replace the proportioning valve?