Jake Wade

In a dilemma. Doing a cam swap on my 2006 Silverado 5.3. Mild Cam Motion truck cam. I have a new set of Summit brand hydraulic roller lifters or I could reuse the originals. The truck has 174,000 well maintained miles and the OEM lifters are not giving me any problems.

I am pulling the heads anyway so, what would you do?

Thank You

BigBlackCamaro

I haven't seen Summit post in a while. I'll post this
Summit sure is proud of their LS7 lifters. Of those 50+ 5 star reviews most are from people who just installed them. So how do they perform over time. I have these with 10k miles and at least one has a pretty loud tick.

You get the idea. Buy something else.

Jake Wade

Mmmmm, would be nice to know who makes them. My guess is Melling. I think I will roll the dice and keep running the originals.

wannafbody

iTrader: (2)

If you have the money, change them, if not roll the dice.

Jake Wade

I got the engine tore down today. I cannot see any difference between the Summit brand lifters I have compared to the OEM lifters that were factory installed in 2006, at least externally.

01CamaroSSTx

iTrader: (3)

Well the travel and preload may different and could result in a different length pushrod.

00pooterSS

iTrader: (40)

@Summitracing can you chime in on the lifters y'all sell and what to expect from them/who makes them etc? Are they a LS7 lifter, an upgrade to LS7 lifters or ??

I'm looking to buy lifters myself soon and scoping out all the options so I'm curious about this as well.

low2001gmc

iTrader: (148)

With 174k miles you are already rolling the dice. I would swap out for peace of mind and know they shouldn't be an issue moving on. Like an old commercial used to say, You can pay now or pay later. Mellings has been in business for a long time. I like their reputation and have ran a set about 8k miles with no issues.

Jake Wade

I decided to run the new Summit lifters. Who knows who makes them. Even though I have another 5.3 Silverado with 282,000 miles on the original engine/lifters, I feel going back with new ones is the right call while the heads are off on this other truck. We shall see.

00pooterSS

iTrader: (40)

I would imagine they are from a quality manufacturer. Summit doesn't seem to mess around when it comes to putting their name on parts. Hopefully they will chime in and share more details about them. They are likely just OE replacements but it would be sweet if they had a few features that made them better. I have been shopping lifters and I would like a little upgrade to the stock ones but no idea which way to go yet.

Bspeck82

Johnson customer service is impeccable and I will continue to do business with them if I need another set of lifters. I got the 2116 lifters and worked closely with johnson and manton to get the right pushrod and they are very quiet and there is no trace of valve float at 7100 rpm. Overall I am satisfied but I admit I did not need those lifters, a 2110 would have been fine and saved me a few hundred bucks. I would recommend going that route. Cheap lifters just cause headaches and the valvetrain is extremely critical to get correct.

00pooterSS

iTrader: (40)

Thanks for the info, I have really been looking at the 2110 as the one I'll likely go for, not only for long term reliability but to also hopefully gain a few hp from maintaining lift better.

BigBlackCamaro

Those don't look like factory original lifters for a regular truck engine. The oil hole is different and the axle is held in by a clip.
The Summit lifters look different than the Summit lifters that I have.

Those look like an Eaton based lifter. Which may at one time been a supplier for GM.

BigBlackCamaro

Those look like Elgin Lifters.
They used to be good in the 80's and early 90's, I haven't used their products since then.

Jake Wade

I am the second owner of this truck. He told me the engine had never been into when I bought it. That said, I cannot say what I pulled out is without a doubt what came in it from the factory.

Jake Wade

I just pulled this one out of Folgers can I have had on the shelf marked 2002 Suburban 5.3 that I had saved from a job a few years back. I have seen more of this style than the other.

RonSSNova

iTrader: (3)

That’s what the GM “LS7” replaced.

BigBlackCamaro

I have one of those out of a core engine.

Jake Wade

Ouch. That left a mark.

Summitracing

Hello there, yes the lifters that come in our SUM-HTLSKIT kit are LS7 spec. .165 plunger travel and the tight valving. We are currently back ordered on these. Between the GM strike and Covid, it's been hard on the manufacturer. It's going to be a while before they come back into stock, but we will let you know when they are and they will be of the same good quality and design as before. Thank you.