[Stan65]

Scarter455,

Pm replied to…

Message for whatever reason are not notifying me.

[Dragncar]

Without reading all this, what are the lifters to get and do we have a dogbone that will work ?
Any success stories ?

[67Lemons]

I’m a little confused reading through this if it’s best to use the Sealed Power/Gaterman/Howards version or if you just need an LS7 lifter then why not use the Delphi US made ones that are available online?

Also, is any Sealed Power HT 2148 good including the ones made in China? Seems they made them in the US, Mexico & China.

[Stan65]

tj.brewster,

I have the machine shop making a few more. Basically using up the material they have on hand.

Have 1 set of the last run left. I’ll send a pm.

Thanks,

Stuart “Stan” Landreth

[Stan65]

FinGTO,

Pm sent with your tracking info!

2 sets left, get them while you can!

Thanks PY,

Stuart “Stan” Landreth

[FinGTO]

Originally Posted by Stan65

FinGTO,

Pm sent with your tracking info!

2 sets left, get them while you can!

Thanks PY,

Stuart “Stan” Landreth

Many thanks , Stan!

Samu

[Stan65]

Sorry guys, I am not getting notifications for replies.


Yes, the lack of the lifter availability has slowed the project.

I “think” most of the folks interested in the bones have bought them. I was selling 10 sets a week the first month. Then 10 sets a month for the next few months, then it was down to one set a month, now I haven’t had but 2 folks reach out in the last 6 months.

The cost of materials had doubled before the “Iran war”. I haven’t even checked lately. So with this it is no longer an economical way to go.

The next big blow, the machine shop I was using has went out of business.

Last thoughts, I haven’t had anyone contact me with an issue, I feel no news is good news.

If we can find a reasonable priced great quality lifter, I may look into resurrecting the project.

Thanks all!
Stuart “Stan” Landreth

Does anyone have the two measurements in this picture?

[67Lemons]

Ok, after reading the entire thread & your explanation I think I finally understand. So since the worry is the base circle of the cam & not so much the lift how does one pick out a camshaft? Reach out to the manufacturer for base circle dimension & lobe lift? None of the examples posted in the thread are for the camshaft I want to run (RA4) so to be safe before moving forward I’ll reach out to a few mfrs.

Also, this seller has a few sets left, I grabbed 4 of the 4 packs, they’re made in China but at least they were available at a good price
https://www.ebay.com/itm/40536980102...3Avlp_homepage

[67Lemons]

Looking at the Butler version of the RA4 cam it might not work just based on lobe lift, obviously without measuring base circle diameter it’s just a guess on my part & even still the cam really needs to be mocked up in the block.

[gtobob67]

Make sure to check each lifter bore during mock-up to make sure the lifter oil feed hole isn't exposed at full lift. My 73 455 block had a few bores with deep chamfers as compared to others. Even with my .550 exhaust lift all checked good. I have several hundred miles on it now and it's very quiet.

[67Lemons]

I’m still waiting to hear back on base circle from Powell & Butler on their RA4 cams but if anyone has a suggestion of a cam for a 455 that works with these lifters I’m all ears. I’m working on a ‘72 455 with 7K3 heads, new valves but waiting to figure out the cam before I purchase new springs. It’s going into a ‘72 GTO with a M20 four speed & 3:23 gears, stock exhaust manifolds (maybe RA manifolds later) with a 2.5” exhaust, just a nice cruiser to hit some shows or grab ice cream with the family. I was going to build this with a RA4 cam so something along those lines but that works with these lifters, let me know if you have any suggestions, thanks!

[Comanche]

Base circle for Butler RA IV HR cam is 1.168-1.170

[67Lemons]

Originally Posted by Comanche

Base circle for Butler RA IV HR cam is 1.168-1.170

Stan, you listed your base circle below previously in the thread so looking at the Butler base circle as noted above the Butler is a slightly smaller diameter, any idea using rough math if this will work with the Sealed Power lifters? Is there .023 wiggle room in the oil feed without having to chamfer the block? Again, I realize that actual measurements with my block & cam are necessary but trying to have as much information as possible before ordering the cam.

Base Circle 1.191
Lobe Lift .344

[Stan65]

All,

Have 5 sets of bones (retainers) left. Will not be making more without preorders in a quite large quantity. The pricing has skyrocketed on the materials.

Lifter are all sold.

And a big thanks to all that have purchased and are running them now.

That’s 142 sets not including the 4 sets I have set aside for me out there!

On to the next big idea.

Thanks all,
Stuart “Stan” Landreth

[67Lemons]

I reached out to Butler for a cam recommendation on my potential build. It’s a 455 with TRW/Sealed Power flat tops, 7K3 heads with exhaust manifolds & 2.5” exhaust. The car is a ‘72 GTO with an M20 & 3:23 rear gear, basic street cruiser, no race, blah blah blah. They came back with a recommendation on the Butler with 112 lobe separation. Obviously they don’t know anything about running this lifter set up & I’d have to make sure with measurements that it will work but what’s everyone think of the cam recommendation? I’m not sure I have enough compression to run it but Butler said no problem.

https://butlerperformance.com/i-3164...tegory:1459686

[Jay S]

Originally Posted by 67Lemons

I reached out to Butler for a cam recommendation on my potential build. It’s a 455 with TRW/Sealed Power flat tops, 7K3 heads with exhaust manifolds & 2.5” exhaust. The car is a ‘72 GTO with an M20 & 3:23 rear gear, basic street cruiser, no race, blah blah blah. They came back with a recommendation on the Butler with 112 lobe separation. Obviously they don’t know anything about running this lifter set up & I’d have to make sure with measurements that it will work but what’s everyone think of the cam recommendation? I’m not sure I have enough compression to run it but Butler said no problem.

https://butlerperformance.com/i-3164...tegory:1459686

I know of an engine that was ran with those profiles and the 2148 style lifters in a 455. Probably has commented on this thread somewhere, it was Murf. I don’t recall if his was an “S” or a “B”.

[Stan65]

All,

I have 7 sets of the bones left, and one set of USA made Sealed Power HT-2148 lifters.

Thanks,
Stuart “Stan” Landreth

[Stan65]

P@blo,

Thanks for the update on the Ford spider for the guys that want to use that approach instead of the bolt in system.

That being said, I have several sets of the dog bones left.

I also have 2 sets of USA made sealed power HT2148 lifters for sale to complete the “kit”

Thanks for all the support!

Stuart “Stan” Landreth

[Stan65]

All,

Still have one last set!

Will not be making more without preorders of at least 10 sets. The pricing has skyrocketed on the materials.

After this last set finds a home I will start a list and if when I get 10 preorders I’ll move forward with making another batch. At current prices they will be an additional $70 +/- $10 a set.

Big thanks to all that have purchased and are running them now.

That’s 146 sets not including the 4 sets I have set aside for me out there!

On to the next big idea!

Thanks all,
Stuart “Stan” Landreth

[Steve Barcak]

This has been quite a thread so far and have been taking it all in, making notes, copying, etc
Am a bit of a 'late bloomer' as far as interest in hyd roller sets ups for the street.
So, with that said, am curious what anyone thinks so far of using a hyd roller on a street car?
some questions-

1 has anyone put any real miles say, 10,000-20,000 or more on any of these set ups in their Poncho?
2 what problems have you had (if any)?
3 what would like to see done differently, what parts may be needed?
4 any strip or autocrossing, road racing time with these hydral set ups?

Let's evaluate together, what has been done so far, what may need to be changed or improved, etc. for the benefit of everyone.
thanks