440Source Solid Roller Lifters

For what it's worth the T&D rockers on Matt Hartford's Pro Stock engine in the video below has needle bearings in it.

Now the valve springs they run are 550# on the seat and probably around 1600# open pressure.

I've had a set of Comp Cams 829's in my 499" RB for 10 years and while I do inspect them every few years I've never had an issue with them.

The next set I plan to buy will be Isky, and only because I have a friend that has a sponsorship deal with them.

Personally, I wouldn't use a set of 440 Source lifters because it's just not worth taking a chance on them.

Just remember: The bitterness of poor quality linger on long after the joy of a low price.

Tom



Yep. Don’t fear needle bearings, fear cheap needle bearings.

Between the rise of cheap parts, bandaids to make cheap parts work, and the misinformation on the internet and social media, the breading-ground has become ripe with confusion.

Once the pinnacle of the very best in extreme racing components, needle bearings have now become frowned upon by Joe Q. Public for use in their lolly pop motors. Crazy.

Not saying that some bushed components are not better, not saying needle bearings never fail. But some folks have become confused in thinking that bushings are good, needles are bad. But guess what, bushings are failing too. Why? Because there are also cheap bushings components out there too.

Certainly not all applications need $1,500 lifters or rockers. But understand well your application, and understand the parts quality totem pole.