Thanks for the update. Please keep us posted.
I am planning on rebuilding my 5.3 this summer so this is of interest for me.

 

I had more time this evening to look at them. Still the same locking clip as a stock lifter but the hole isn’t lined up with the flat on the body and the overall machining looks much much nicer than my factory lifters. They are soaking right now. I went to the gym and I’ll probably put them in tonight or tomorrow night.

 

Which ones did you get , B2148 with the trays . What are you going set preload at ?

 

Heres my two cents.
I pulled my engine apart to freshen it up and change rod bolts. Last season I spun it to 7200, and this year will be no different. So I did research on the drop in lifter options and was just about settled on the morels. Then I heard about these 2110s. Then I found out I live 8 mins from thier shop. So I go down there a couple weeks ago. Randy gave me a tour of the shop, showed me the metallurgy data, showed me testing data from the copo development and a set of lifters from Ruby's second engine lol.
I was sold.

 

I just finished my build using the Hylift-Johnson 2148SE lifters. These are a "Slow Design" and have "Direct Shot" oiling for the roller bearings in them. The valve train is silent, and was even on initial startup.

Johnson 2148SE Lifters

They're very affordable for a high performance US made lifter, LINK

 

I was looking at those as well, my concern was more about RPM and an aggressive cam lobe. Those just didn't give me much confidence to handle 7200+ and 420lbs. I'm sure they would, hell my stockers lived. But I just don't want to play games with it. I'm glad they worked out for you!

 

Thanks blsnelling, nice to hear it went well. I havent used mine yet. Don't really need them with my mild set up, oh well, I'll use them anyway.

 

So the 2148SE's are drop ins for the LS platform?

 

Yes they are drop ins for the LS platform, a good performance lifter, actually meant for dual springs, not too many know about them.

 

At what point is it recommended to switch to a slow leak-down lifter like these? The TSP duel spring kit that comes with their cam kits use PAC springs that have 415lbs of open spring pressure. Would a cam kit with these spring benefit from these Hylift-Johnsons SEs over a drop in set such as the lower end Hylifts or Morrels?

 

those springs and tsp lobes wont support enough rpms to need a lifter like that

 

Gotcha. Thanks!

Probably still going Morrel drop-ins then.

 

Depending on what you have for a cam and how high you want to rev it you may want to upgrade springs. I had a terrible experience with those .660 pac/tsp springs in my car with tsp cam. I wouldn't push it past 6800-7000 to be safe.

 

I remember reading that LS7 lifters are rated to 360 lbs max spring pressure which would mean they are not suitable for almost all dual spring set ups, (re: many have used them successfully with duals) It was that info which was the deciding factor for me in going to the 2148 SE slow lifter I wish I could find the link, it may have been on the Summit Racing website.

 

they may be rated for 360# but you have to consider the open spring is rated at 415# max lift, it will be lower than that with cams at less than .660 lift.

 

Yes I wasn't sure how much that was a factor but thanks it's important to remember.

If I had a cam that peaked over 6000 rpm with duals I'd run the slow lifter design because too soft a lifter can rob power the same or perhaps more as too thin a pushrod can.

I don't need duals I just run them for safety, the place I purchased them from said there are people running there dual PAC springs on stock engines

 

That's exactly what they're designed for.

Yes.

A lot of guys do it, but LS7 lifters are not designed for dual springs and high RPMs. These 2148SE lifters are. Regular H-J 2148s and Morrels are a standard lifters like the LS7.

 

My Hylift Johnson 2148 SE are also quiet and seem to be working well except strangely one of them would not fit inside the bore, I lightly abraded it with some 800 grit rotating it about 20 times in my hand and this tiny removal of material was enough for it to fit smoothly in the bore, I had to do this with two of them.

 

Thanks for the information - that is good news, better a little over sized than too loose. I have some new Hylift Johnson 2148 SE for my upcoming rebuild.
Do you know the recommended preload for those lifters with a iron block-aluminum heads?
Also how much valve spring pressure are you running?
I agree that the stock lifters just can not handle more spring than stock. And if that is true, it would interesting to know how much actual valve lift is lost and the lost performance due to the increased clearance.

 

I can't find the Johnson 2110 lifters anywhere in stock. I had a ls7 lifter fail and cause a full rebuild. Lifters did not turn in the tray, the roller bearing failed and wiped the cam.

Never using those again and want a lifter that will be up to the task. I need something asap... Need to get this motor back together. Interested in the Hylift Johnson 2148 SE lifters now. Are they they the same height and and preload spec as ls7s? Just need all the info before going forward.

Thanks!