Quote
​"​​​​Do you have any other information on this entire post"

I wish I could help you more, all the info in link is from a official Hylift PDF file on Google easy to find (type in Hylift lifter tech catalog pdf) the highlight part and link at bottom of the post your refering to ie the dyno result was something extra I added. I think the problem is that most don't even know the the Hylift Johnson 2148 SE is available and don't know what the SE designation means. That's why I have been posting about it here.

It's known that any slow leak down lifter can result in more power than standard leak down rate lifter if there is too much pressure from the spring for the lifter to handle whether it be the reasonably priced Hylift Johnson 2148 SE lifter or the much more expensive Johnson 2110 lifter (note not same company).

 

So i just spoke with Texas Speed about lifters. For anyone who doesn't know, there is currently a lifter shortage, all Delphi LS7 lifters are backordered until later this year, possibly October. GM performance lifters may be available soon, but not until atleast May. This has led me to inquiring into other options for drop ins. The most affordable options are the Morel ($200) or the Hylift-Johnsons ($150). Texas Speed informed me that they have recently had a number of issues with these Hylift lifters and are no longer recommending them as a stock style replacement.

Looks like I am dropping $200 on the Morels as I am not chancing it with these Hylifts. Maybe the slow leakdown version Hylifts are better quality, but I am not looking to spend that much money right now, or roll the dice on them.

 

Hylift Johnson acknowledge the standard LS lifter 2148 (not slow leak down) will collapse the lifter used with around 390 lbs PAC dual springs like the LS7 lifters they aren't designed for this. Interesting that Brian Tooley for BTR says they have had about 20% issue rate with Morel 5206 lifters compared to 1% for there slow leak down lifters.

 

that thread was for 2014. Things haven’t changed in 5 years?

 

I'm torn on this as well. I'm getting ready to put a 233/240 cam with .660" PAC springs on ported 243 heads in my '02 TA. The car only has 21K miles on it. I asked TSP if I needed to replace my lifters and they replied no. Never the less, I'm still worried about it. I don't ever want to have to pull these heads again. Should I eliminate doubt and "waste" $400 on a set of Johnson 2110 lifters?

 

Quote "That thread was for 2014. Things haven’t changed in 5 years?"

I don't know if they have changed since then, 20% for the Morels is high.

I wonder if engine oil carbon and sludge would effect the finer tolerances in a slow leak down lifter more that a standard one as engine oil contamination is recognised as a major cause of lifter failure? I have had success once with engine oil flush quietening my stock LS1 lifters a few years ago, there are also lifter free additives available. Makes me think clean oil is important​​​​​​ with lifters.

 

what I don’t understand is they cut out the lifter with a 1% rate but didn’t cut out the 20% failure rate lifter. At least that’s what it sounds like. Sounds like some fraggle naggle bs to me.

 

​​​​​​He doesnt say either way about what he did with the Morels, he probably didn't see it as relevant as the thread was about slow leak down lifters specifically (re title)

 

I'm leaning heavily towards the Hylift-Johnson A-2148SE. Any reason not to go with these? For <$200, they seem like a valid upgrade over a standard 2148, LS7, or 6504 lifters.

 

The LS drop in Morel for the LS are $244 on there website are stated as good for 6500 max rpm. The Hylift 2148 SE are $237.

Here is a quote from Hylift to me when I asked what was suitable for my dual PAC .660 springs with .390 lbs at max lift on .590 valve lift 220 228 110 cam reving to 6800 rpm.



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JAMSI has them for $189.99.

 

Is that for 16 of the 2148 SE? Thats a great price!
Here is​​​​​ a video showing the USA Hylift Johnson factory assembly line what impressed was it shows quality control re precise measurement and those few that don't meat the required standard.

You Tube

 

Ooops, lol. $229.99.

 

Anyone running rhoads Lifters? I need to order lifters tomorrow. I’m thinking about these to tame my cam a little.

 

I ended up using the lifters from Thompson Motorsports. They told me they were similar to the LS7s but made to custom spec by Eaton. I am not sure on the exact testing but Dustin told me they have seen 8k in a few builds. I just did the swap a couple weeks ago and they are quiet enough. Can't speak to them long-term, but we shall see over the next few years.

 

Comp and cam motion have lifters that are like 400 bucks and the cam motions have been proven a reliable upgrade

 

I went with johnson 2110s. Worked flawlessly for 5000 miles til the damn tsp .660s floated the valves and took out a lifter and pushrod.

 

Oh no! Your not talking about the TSP polished 660 spring kit that comes with their integrated valve stem seal?

 

You were shifting at 7800-8100 or something weren't you?

 

I just talked to my guy at the local engine parts warehouse. He told me he sells the Elgin ls7 spec lifters and never had one come back or have a problem. He said he sells over 60 a day. I did come across one failure on this forum, however, the question as asked if it rotated but the poster never replied. So I dont know if that was the cause. I can get these lifters for $120 a set and Elgin has been known to good quality stuff for low cost. Any one else have any issues?

anyone run the rhoades? I read mixed reviews. I just talked to an older fellow I work with who had some in one of his old hot rods and he had nothing bad to say and said they weren’t noisy. I mean an ls already sounds like a sewing machine as it is. Then I read where one guy claims that ls1’s after 2001 came with rhoades type lifters on the exhaust lobes. I could not confirm this.