BigBlackCamaro

Hmmm. The GM strike put Summit lifters on back order.
I won't be hesitant to use Summit brand lifters again, they must at least be made by GM. Or the same supplier for GM.

G Atsma

I find this reassuring!

Che70velle

iTrader: (6)

GM doesn’t make parts. They make vehicles. They buy parts from vendors, who make the parts for them. This “pandemic” has shut down manufacturing across the globe. The Summit lifters are GM spec, but there’s no telling who actually makes them. I found out long ago that Summit branded parts are quality. I’d run them in a rebuild for sure.

BigBlackCamaro

What does the GM strike have to do with Summit lifters if GM doesn't make them?

Che70velle

iTrader: (6)

Absolutely nothing. If the buyer goes on strike, why should the manufacturer (vendor) continue to spend money (build parts), knowing that they can’t sell product. Business 101.

BigBlackCamaro

What?

Summit said the GM strike and Covid is why they're out of lifters, you said GM doesn't make parts. Summit never shut down so they (vendor) have a buyer for the lifters.
Business 101? No, plant closure/employee absenteeism due to worldwide pandemic and stay at home orders.

Maybe don't try to prove me wrong when I said Summits supplier is either GM or the supplier for GM. Just let it go.

G Atsma

Summit doesn't sell nearly the volume of lifters as GM uses in production. GM shuts down, so do suppliers.

Che70velle

iTrader: (6)

Let what go? Who buys more lifters, GM or Summit. Think about it. I’m not trying to prove anybody wrong, just discussing things. That’s what we do here.

BigBlackCamaro

So GM shut down and the lifter factory said f--- it y'all go home ain't nobody need no lifters. Business 101. Got it.

wannafbody

iTrader: (2)

Depending on the state, the manufacturer may have been forced to close for a period of time because of Covid 19.

The manufacturer may be fulfilling orders per contract. GM may be ordering more than current production capacity.

rednari2

iTrader: (1)

Look all of the LS7 type cast body lifters are made by either Eaton, Elgin, or S-Line or other manufacturer such as Delphi. That includes wether they are boxed as Lunatis, Howards, or Cranes, etc. All of these lifters are made with cast bodies and to a price point. And no Summit doesn't make lifters. The above lifters are LS7 style lifters nothing more, but also nothing less. The big improvement came a few years ago when the rollers were upgraded from swaged to line lock clips.

The earlier improvement from the 1987-2004 lifter is the reinforced body where the roller is encapcellated instead of open wheel.

RonSSNova

iTrader: (3)

Straub Technologies reported a few months ago that the Delphi plant was on strike. Which put a pinch on all the manufacturers. As was stated above, there aren’t many manufacturers of the bodies etc. Now we have the virus.

Pretty nuts!

Ls7colorado

iTrader: (3)

Inflation here we come!! Oh wait its already here......

wannafbody

iTrader: (2)

That's a modified low lift lifter.

BigBlackCamaro

And it was made by GM

G Atsma

They are the reason LS7 lifters came out.

BigBlackCamaro

I would think that the LS7 is the reason LS7 lifters came out. (and then became the standard replacement-- save you from typing that)

Which brings up further controversy. Summits website says LS7 lifters have ceramic check *****.
https://help.summitracing.com/app/an...7-engine-specs

Now the question becomes: Whats the definition of an LS7 spec lifter? Because I know it's got nothing to do with ceramic anything. So everyone thats been saying LS7 lifters are just the ONLY replacement OE lifter for an LS engine are wrong.
Well according to Summit anyways.

Insert bullshit below.

Jake Wade

Finished the cam lifter swap and thought I would check back in to give an initial review on the Summit brand lifters. Keep in mind this is a mild Cam Motion Stage 2 truck cam, known to have a gentle lobe.

Anyway, first impressions are great. They pumped up immediately at startup and are very quiet. Time will tell as far as long term reliability. As of this moment, I am glad I used them.

Thanks

G Atsma

Here goes- I've seen one other GM lifter that is way pricier than the fabled LS7 lifter. I think it is used in factory racing applications (NASCAR?)
I just looked on CamMotion's site where I saw them but they show no price now. Might also be out of them.

BigBlackCamaro

GM doesn't make lifters.
That must be the Cadillac CTS-VR lifter you're talking about. Those also have a ceramic check ball, rated to 8500 rpm. Cost around $400, back ordered about everywhere.