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-   -   Jeep 4.0 Roller Lifters (http://www.jeepforum.com/forum/f19/jeep-4-0-roller-lifters-1562923/)

Trombly 08-15-2013 11:02 PM

Jeep 4.0 Roller Lifters
 
Has anyone used/heard about those roller lifters from 505 Performance?
Was wondering if anyone had any luck with them, could give me some insight.
Thanks:tea:

Newtons3 08-17-2013 04:12 PM

Yes. I would not recommend them. There are 3 of us within about 5 miles of each other with lots of engine experience who have come to the same conclusion.

Trombly 08-17-2013 06:47 PM

Lol thats not what i wanted to read, is it because they fail a lot?

Newtons3 08-17-2013 07:01 PM

Partly. Partly because installation requires a HV oil pump indicating massive oil usage. Partly because the system has a built in useful life expectancy far shorter, in my opinion, than I feel we are paying for.

Trombly 08-17-2013 07:42 PM

Why would it need a HV pump, roller rockers require less oil. Have you used them on any jeeps?
Rock on! Thanks

Newtons3 08-17-2013 07:53 PM

Its not the rockers. Its the lifters. And yes, 3.

Trombly 08-18-2013 10:44 AM

I don't even know if this is real life right now lol, alright thanks dude ill just get a flat tappet.
Rock on!

super98lsc 08-20-2013 04:24 PM

x4. nitrided flat tappet, good high zinc oil and proper spring pressures and break in cycle.

baldfatdad 08-20-2013 04:47 PM

Quote:

Originally Posted by Newtons3 (Post 15806196)
Its not the rockers. Its the lifters. And yes, 3.

Anyone ever tried taping off the filter or pressure sender and running a line up to the valve cover? Raining oil down on the rollers that way.

super98lsc 08-20-2013 07:00 PM

Even Zack at 505 told me to run a solid flat tappet that they were having reliability issues with the roller lifters. This was about a year and a half ago. I went solid lifter, flat tappet and had it ground at lunati and nitrided it. one of the things I liked in the stock can was the lifter diameter, I used a comp on my first build with massive failure at 2200 miles. We know the spring tension was set too high by the head builder so not entirely a comp issue imho but prefer the larger footprint on the mopar unit. My 360 and 401 are also large diameter.

Newtons3 08-20-2013 09:38 PM

Quote:

Originally Posted by baldfatdad (Post 15816887)
Anyone ever tried taping off the filter or pressure sender and running a line up to the valve cover? Raining oil down on the rollers that way.

Why? That would make no sense. The oil through the pushrods is excessive lube for roller rockers. Yes, Ive run spray bars on both wet and dry sump Fords and Chevys, but only on endurance engines to cool the valve springs.


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