LS7 Lifter ?
02-19-2008, 12:28 PM
#31
Registered User
Join Date: Jan 2007
Posts: 275
The cup depths are different. I compared them when I installed them, there is about a 0.1" difference in the cup depth.
If you don't belive me:
http://ls1tech.com/forums/showpost.p...6&postcount=11
To the OP; Get the stock LS7 lifters when you install them check your pushrod legnth and then order the correct ones. You will need to do that anyway if you are going to upgrade to better rockers too.
03-09-2008, 09:56 PM
#32
Registered User
Join Date: Sep 2005
Location: ga
Posts: 411
The cup depths are different. I compared them when I installed them, there is about a 0.1" difference in the cup depth.
If you don't belive me:
http://ls1tech.com/forums/showpost.p...6&postcount=11
To the OP; Get the stock LS7 lifters when you install them check your pushrod legnth and then order the correct ones. You will need to do that anyway if you are going to upgrade to better rockers too.
what size did you end up using, the ls7's are deeper so you would need a longer on right for stock? I measured 7.165 using a lt lifter so should I add or subtract from that for the ls lifter? that is using the pro mag RR to
03-10-2008, 11:32 AM
#33
Registered User
Join Date: Sep 2004
Location: Irving, TX
Posts: 1,448
The cup depths are different. I compared them when I installed them, there is about a 0.1" difference in the cup depth.
If you don't belive me:
http://ls1tech.com/forums/showpost.p...6&postcount=11
To the OP; Get the stock LS7 lifters when you install them check your pushrod legnth and then order the correct ones. You will need to do that anyway if you are going to upgrade to better rockers too.
03-10-2008, 02:22 PM
#34
Registered User
Join Date: Dec 2005
Posts: 372
I just finished installing the caddy lifters and my geometry seems to be fine after my spring switch over as well(to PAC 1218's). The head of the Comp Pro Mag RR always stays in constant contact with the valve stem tip but realy doesn't move a whole lot from one side to the other(just a bit that's hardly noticable which is expected). It doesn't travel however over the entire valve stem tip like some diagrams I've looked at.
03-15-2008, 07:22 PM
#37
Registered User
Join Date: Mar 2005
Location: Aurora, IL
Posts: 12,312
03-16-2008, 09:00 PM
#38
Registered User
Join Date: May 2007
Location: Apopka FL
Posts: 852
03-16-2008, 09:53 PM
#39
Registered User
Join Date: Dec 1969
Location: Little Rock, AR
Posts: 27,710
03-17-2008, 07:24 AM
#42
even if they were the best tech they may not know much about interchanging parts between models like that or just aftermarket parts in general
03-17-2008, 07:38 AM
#43
Registered User
Join Date: Mar 2005
Location: Aurora, IL
Posts: 12,312
I wasn't implying that, but take this site for example. There are alot of people on here who have been first time builders and done so with success. Why, because they take alot of time to research the parts, specs, and procedure to do the job.
03-17-2008, 10:56 AM
#45
Registered User
Join Date: Dec 1969
Location: Little Rock, AR
Posts: 27,710
On the rare occasion that someone else does something to my car (even dealer warranty), I still look over what they did. Not pointing anyone out or purposely being derogatory, I have seen self proclaimed ASE Master Techs post things that indicated a failure of understanding.
Point is, there are great techs out there and mediocre ones. You can't take any of them at face value.