View Poll Results: Which brand or Stock?
Voters: 92. You may not vote on this poll
To upgrade or not upgrade STOCK Lifters
12-19-2005, 01:11 AM
#83
Originally Posted by TAQuickness
measure 0 lash + the desired preload amount. example:
0 lash = 7.400
Desired preload = 0.060"
Pushrod lenght = 7.460"
0 lash = 7.400
Desired preload = 0.060"
Pushrod lenght = 7.460"
How can you get zero preload on a stock rocker arm set-up?
the stock length pushrod puts the stock setting preload to the lifters. If you change lifters you DO NOT add the new preload to the old preload amount. YOu must first subtract the amount of preload from the stock set-up then add the new preload amount. For an adjustable rocker arm, you just adust for the amount of preload with more of a turn not change pushrods.
You would need to use a pushrod that is adjustable to measure the length of where zero lash is with the stock rockers tq'ed down, then add the preload amount desired to the measurement you get from the test pushrod.
Last edited by Spinmonster; 12-19-2005 at 01:17 AM.
12-19-2005, 04:46 AM
#84
TECH Junkie
iTrader: (28)
Join Date: Jan 2004
Location: Houston
Posts: 3,250
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Spinmonster
How can you get zero preload on a stock rocker arm set-up?
the stock length pushrod puts the stock setting preload to the lifters. If you change lifters you DO NOT add the new preload to the old preload amount. YOu must first subtract the amount of preload from the stock set-up then add the new preload amount. For an adjustable rocker arm, you just adust for the amount of preload with more of a turn not change pushrods.
You would need to use a pushrod that is adjustable to measure the length of where zero lash is with the stock rockers tq'ed down, then add the preload amount desired to the measurement you get from the test pushrod.
the stock length pushrod puts the stock setting preload to the lifters. If you change lifters you DO NOT add the new preload to the old preload amount. YOu must first subtract the amount of preload from the stock set-up then add the new preload amount. For an adjustable rocker arm, you just adust for the amount of preload with more of a turn not change pushrods.
You would need to use a pushrod that is adjustable to measure the length of where zero lash is with the stock rockers tq'ed down, then add the preload amount desired to the measurement you get from the test pushrod.
Suppose you missed some of the earlier post?
12-19-2005, 06:45 AM
#85
Got to ask, if you have an adjustable setup then do you just get the pushrod length for a good swipe using checking springs on the hydraulic lifter and then order that length, or do you need to compensate the pushrod length if you have an adjustable system as well?
12-19-2005, 11:07 AM
#86
Update:
The Lunati lifter 72432 is/was made by Morel. Morel went back and Lunati had ordered some under the Morel part number for individual lifters and not sets of lifters. These were sold to them almost 2 years ago. This was the only order they could find after cross referencing everything. At the price they are selling them they have inputed cost wrong and they are selling at a loss. This is my opinion and purely speculation but the LS1 lifter is the only lifter Morel sells as each (16 to an engine) because all the other stuff uses a tie bar and is linked. So I would say someone has doubled the piece count therefore accounting has adjusted the cost to reflect 1/2 of what is actually is. Downside is inventory is really 1/2 of what they have. So while they last they are a good deal.
Mystery solved.
The Lunati lifter 72432 is/was made by Morel. Morel went back and Lunati had ordered some under the Morel part number for individual lifters and not sets of lifters. These were sold to them almost 2 years ago. This was the only order they could find after cross referencing everything. At the price they are selling them they have inputed cost wrong and they are selling at a loss. This is my opinion and purely speculation but the LS1 lifter is the only lifter Morel sells as each (16 to an engine) because all the other stuff uses a tie bar and is linked. So I would say someone has doubled the piece count therefore accounting has adjusted the cost to reflect 1/2 of what is actually is. Downside is inventory is really 1/2 of what they have. So while they last they are a good deal.
Mystery solved.
12-19-2005, 12:24 PM
#87
Originally Posted by Cstraub
Update:
The Lunati lifter 72432 is/was made by Morel. Morel went back and Lunati had ordered some under the Morel part number for individual lifters and not sets of lifters. These were sold to them almost 2 years ago. This was the only order they could find after cross referencing everything. At the price they are selling them they have inputed cost wrong and they are selling at a loss. This is my opinion and purely speculation but the LS1 lifter is the only lifter Morel sells as each (16 to an engine) because all the other stuff uses a tie bar and is linked. So I would say someone has doubled the piece count therefore accounting has adjusted the cost to reflect 1/2 of what is actually is. Downside is inventory is really 1/2 of what they have. So while they last they are a good deal.
Mystery solved.
The Lunati lifter 72432 is/was made by Morel. Morel went back and Lunati had ordered some under the Morel part number for individual lifters and not sets of lifters. These were sold to them almost 2 years ago. This was the only order they could find after cross referencing everything. At the price they are selling them they have inputed cost wrong and they are selling at a loss. This is my opinion and purely speculation but the LS1 lifter is the only lifter Morel sells as each (16 to an engine) because all the other stuff uses a tie bar and is linked. So I would say someone has doubled the piece count therefore accounting has adjusted the cost to reflect 1/2 of what is actually is. Downside is inventory is really 1/2 of what they have. So while they last they are a good deal.
Mystery solved.
Lunati, some 2 years ago, ordered what they THOUGHT was sets of lifters, when in actuality they were only individual lifters. So, when they ordered for 8 "sets" it was actually only 8 lifters, not 16.
So, when Lunati posted the prices for a set of 16 lifters, it was actually only for 8 lifters, and therefore have to sell a total of 16 lifters at the price for 8.
12-19-2005, 12:51 PM
#88
TECH Resident
Join Date: Sep 2003
Location: Working in the shop 24/7
Posts: 848
Likes: 0
Received 1 Like
on
1 Post
Originally Posted by Haans249
Ok, that was a little confusing, so here is my attempt to understand this...
Lunati, some 2 years ago, ordered what they THOUGHT was sets of lifters, when in actuality they were only individual lifters. So, when they ordered for 8 "sets" it was actually only 8 lifters, not 16.
So, when Lunati posted the prices for a set of 16 lifters, it was actually only for 8 lifters, and therefore have to sell a total of 16 lifters at the price for 8.
Lunati, some 2 years ago, ordered what they THOUGHT was sets of lifters, when in actuality they were only individual lifters. So, when they ordered for 8 "sets" it was actually only 8 lifters, not 16.
So, when Lunati posted the prices for a set of 16 lifters, it was actually only for 8 lifters, and therefore have to sell a total of 16 lifters at the price for 8.
Somebody in Lunati purchasing has some explaining to do!
Ed
12-19-2005, 02:37 PM
#89
Originally Posted by Haans249
Ok, that was a little confusing, so here is my attempt to understand this...
Lunati, some 2 years ago, ordered what they THOUGHT was sets of lifters, when in actuality they were only individual lifters. So, when they ordered for 8 "sets" it was actually only 8 lifters, not 16.
So, when Lunati posted the prices for a set of 16 lifters, it was actually only for 8 lifters, and therefore have to sell a total of 16 lifters at the price for 8.
Lunati, some 2 years ago, ordered what they THOUGHT was sets of lifters, when in actuality they were only individual lifters. So, when they ordered for 8 "sets" it was actually only 8 lifters, not 16.
So, when Lunati posted the prices for a set of 16 lifters, it was actually only for 8 lifters, and therefore have to sell a total of 16 lifters at the price for 8.
So say they orded 16 "Singles". As a linked lifter this would be enough to make 2 engine sets. As an LS1 lifter is enough to make 1 engine set. IMO someone looked at the "singles" total and then divided them by 8 to represent engine sets. This would cut cost in 1/2" in the computer but inventory would be off.
Does that make sense?
01-31-2007, 12:21 PM
#95
I went with comp R..when i purchased the Patriot Gold dual springs, it was recommended to run Comp R lifters. made sense to me as i upgraded all of the powertrain. didnt want to leave anything stock.
was it necessary? who the heck knows, but i can pound the hell out of my motor with no worries!
was it necessary? who the heck knows, but i can pound the hell out of my motor with no worries!
01-31-2007, 01:26 PM
#97
Originally Posted by SLP4CamaroSS
look at the date of the post 2005 lol
Yeah this thread is back from the dead...the stock lifters are pretty strong (I've got 128,000 miles on a set with dual springs and a .595 lift cam) .. now they have the new and improved stock ones and the CTS-V racing versions that are a better lifter for very high rpms..not really any need to go with after market lifters now days GM did all the R&D on the current latest and greatest
