Does anyone know the proper install height for the lingenfelter double valve springs on stock valves http://www.lingenfelter.com/store/l230010000.html? What would be the best way to achieve the proper install height? They suggest the use of the gm springs seat part number 10185066 with 611-16 locks.

 

That seems like way too much spring to me at 477#/inch rate. Your installed height is going to be controlled mainly by the length of your valves and those springs look to be designed for 1.85" - 1.90" installed height. Way too much closed pressure at 1.75" - 1.80" installed height IMO. If you are running a really agressive HR or a SR then maybe these are right for you.

 

What do you mean by HR and SR? I am guessing these springs would not work with the stock valves.

 

hydraulic roller
solid roller

What cam are you planning on using? And I'm assuming stock heads??

 

I am using the lpe 74211 211/219 hydraulic roller cam and stock mildly ported heads. I think the springs would work with valves that are .050 longer than stock to achieve a 1.9installed height. With that set up I should have 135# of seat pressure. Watcha think?

 

Installed height is not a set number, it is a variable. You chose it according to how much seat pressure you want, provided you are still allowing enough height to avoid coil bind. You do this using shims. Due to manufacturing variations, you must set up each valve individually.

Rich

 

Good choice on using a spring which is made to be compatible with that cam. I used these springs w/ the 211 cam for over 60,000+ miles. As far as suggested seat pressure/install height you should probably talk to someone at LPE and see what they suggest.

 

Well, I guess this spring will be too much for a stock style lifter. If they are installed at a 1.950 height the seat pressure will be 135# and the open pressure will be 400# on the lpe 211/219 camshaft which is .530/.560. This will probably be too much for a stock style lifter. Just when I thought I had it all figured out. What type of lifter would work well for this application?

 

Booo yow, too much spring......find something else.

You never said what valves you have....You need to learn how to set them up...its not as simple as asking then doing it. Like rskrause said each valve should be done to get them all right. Not every one is going to show up the same.

 

Good luck finding a valve and retainer to reach that installed heigth without machining the spring seats.

 

Ferrea valves (2.00/1.56) will be used. I know the install height of 1.9could be set using the proper locks, retainers, and shims but like you and others have said, too much spring pressure. Damn! No wonder these springs are so cheap.

 

The lingenfelter valves are .050" longer than stock to provide added adjustment for the correct installed height. The retainer that the website suggested to use was the comp 740-16, 611-16 locks and gm spring seats, I forgot the part number.

 

Well I don't know, they may work fine. I'm not good at wording it and comprehending the numbers....but if I had the stuff in front of me I could check the spring and tell you. So pay no attention to what I said.......

 

I'm running +.050 valves, and would be lucky to get a 1.85" installed height. Add +.050 retainers and you get 1.90". Still need .050".

 

Are you saying that I will need another .050" to make the installed height 1.95"?