Lifter / oiling Thoughts

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rod7515

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I have posted in a different thread about the lifter galley issues on my 92 or newer 360 Block casting number 53020006. My issue was the lifter (solid roller) (comp #828) coming up far enough that the block oiling hole inside the lifter bore was exposed just above the roller. Now its not an issue of the lifter oiling ring coming outside the bore so please dont get confused. I know others have had that issue but mine is different.
I sent the cam back to comp 3 times for the base circle to be reduced and I finally got back what they say is the best they can do to reduce the base circle, but I still have an issue on the drivers side lifter bores. I have not called comp yet and plan on doing this tomorrow. But i wanted to get your thoughts on a few options that were given to me. I do not have pictures of the lifters as they are at the builders with the engine, but they are the comp Endore-X solid roller lifter. A gage was made to check the height and on the passenger side it appears I will have no issue with the oiling becoming open but on the drivers side it is so close that I cant tell. Heres my options as it sits now and if you have any other options I missed please offer them. Now I do not want to go to a different cam so please dont suggest that. By the way my cam has a .575 lift which as I read many posts I wouldnt run into any problems until I was at .600 lift! But as luck would have it that doesnt apply to me!

1st option, run as its sits and see what happens

2nd, install the copper pipe on the passenger side to block oiling to lifter bores

3rd, put a restrictor on the drivers side galley at front of block passage to keep pressure full on passenger side but limit oil drop off from drivers side should the oiling hole come open if lifter is going up past.

A few things to keep in mind. I do plan on racing this 2-3 weekends a year but most of the time will be a street machine. Also it will be making a 200 mile drive each way 2 times a year to a vacation home. I know many will say use the copper tube but my concern is will I still have or get enough lubrication to the lifters and the rollers bearings if the passage is blocked for a street driven and long trip car. Maybe I will at higher RPM's but what about in town traffic and idling at stop lights?
Is there any lifter out there that would use a smaller roller which could possibly give me some extra clearance at bore oiling hole?
I am hoping this makes sense and that someone has an easy fix.
Thanks and I look forward to hearing options
Rodney
 
There is an option four - which would be bushing the lifter bores (all of them). That will solve all the oiling issues, and correct any geometry issues that could cause the rollers to wear and fail quicker and cost power.

Do the lifters have pressure fed axles?
 
What is the normal charge to have something like that done. The machine shop I have my engine at does not do that. I would have to take it somewhere else.
Rod
 
Draginmopars, Please do PM me his contact information. Your help is greatly appreciated.
Thanks
Rod
 
Abodybomber, took your advice and called mike. Great guy and he gave me a very good explanation of what I was dealing with. I ordered a set of his lifters so I guess I will be selling some comp cam lifters. I can't send them back since they were part of a kit. I hated to spend additional money but it's better then redoing an engine a few months after it's completed! Looks like I should be able to put this issue behind me and see what the next roadblock will be.
Thanks
Rod
 
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