Stock rollers/aftermarket cam

moper said
I replace the lifters as a matter or course, but I use factory relplacements because some of the performance ones can be noisey. The factory ones are tighter and quieter.

moper, what stock replacement ones do you usually use? do you have a part number for them?

jimmyray said
Agreed. I got the "performance" OE style ones from Hughes, part HUG 5006 HYD ROLLER LIFTER SB MOPAR 16.00 $140.00 and never could get the preload right (roller rockers) to eliminate all of the noise. Went back with the Mopar Performance OE style rollers, and it is quieter. And cheaper as well! Part number DCC-5249862 SBM MAGNUM ROLLER LIFTERS (16) $116.95 from Summit.

Could not tell a diff in power between the 2.

They are on my Comp Cams 236-242 .541 lift hyd roller cam. My valve preload is set to 0 + 1.5 turns, FWIW.

thats some good info, thanks!

HemiEd said
Great thread, lots of good information.

What about the valve springs? How much can these rollers take? Is there a difference in the spring needs of the hydraulic roller, and a normal hydraulic lifter?

I have considered putting my J heads on the roller motor, and it already has some pretty stout MP valve springs.

thats a good question im interested in too...I was thinking of running the RHS heads that Brian at IMM sells prepped, but its not set in stone...regardless, is there any specific spring needs?

POS Dakota said
Truth be told, the magnum hyraulic rollers are very good and will take a LOT of abuse.
I am living proof!!!! You can reuse them over and over again too as long as they hold oil and the roller bearings operate smoothly, I wouldnt worry about it. Clean them up nice and run 'em...or get brand new ones from mancini for around 120-140 bucks, something like that. They're cheap, and they hold up just fine. The beauty of an OE hytdraulic roller block is that the OE lifters are cheap and good stuff, as opposed to the retrofits that are pretty expensive.

Also, you can get a lot more lift than that by going to a decent lift cam and then stepping up the rocker ratio...only limit is piston to valve and how the head is set up.

that is exactly what id like to do is reuse them if they are still good...nonetheless, it doesnt hurt to replace them with brand new ones considering they are only a little over 100 bucks

one question i do have though, are you guys putting back in the factory spiders as well? or do you leave them out? do they not fit with an aftermarket intake?

thanks for all the help so far!