LS7 Lifter
https://ls1tech.com/forums/generatio...1-lifters.html
This is a good thread. Ends up raising as many questions as it answered.
This is a good thread. Ends up raising as many questions as it answered.
Thread Starter
Joined: Mar 2006
Posts: 21,007
Likes: 881
From: The Beach...
Bumping this one up..I was asked this earlier and found some good info to clear it up.
LS7 on the LEFT, stock on the RIGHT
http://www.camaroz28.com/forums/showthread.php?t=690137
Here is another one..
https://ls1tech.com/forums/15011466-post7.html
So gentlemen what we conclude here is the actual LS7 Lifter is .050" TALLER than the stock Lifter, and requires a .050" SHORTER PUSHROD.
However to throw a curve ball in here..there are stock replacement lifters that are out there that look like LS7 Lifters, but the Cup is stock height. You just have to pay attention to detail when you look.
LS7 on the LEFT, stock on the RIGHT
http://www.camaroz28.com/forums/showthread.php?t=690137
Here is another one..
https://ls1tech.com/forums/15011466-post7.html
So gentlemen what we conclude here is the actual LS7 Lifter is .050" TALLER than the stock Lifter, and requires a .050" SHORTER PUSHROD.
However to throw a curve ball in here..there are stock replacement lifters that are out there that look like LS7 Lifters, but the Cup is stock height. You just have to pay attention to detail when you look.
When you refer to that theres is a stock replacement lifter that look like LS7 ones, are you talking about part number 12499225 ? or are those the ones that are going to require a .050 shorter pushrod??
Teching In
Joined: Mar 2020
Posts: 11
Likes: 2
Ls7 lifters in an lm7 I recently had a lifter start to go bad in my lm7 5.3 and I was looking at getting ls7 lifters to replace the stock one. I have all stock internals and I’m having trouble finding the proper pushrod length that I can run to put the proper preload and n the lifters. If anyone has any experience or knowledge on these it will be helpful.
I recently had a lifter start to go bad in my lm7 5.3 and I was looking at getting ls7 lifters to replace the stock one. I have all stock internals and I’m having trouble finding the proper pushrod length that I can run to put the proper preload and n the lifters. If anyone has any experience or knowledge on these it will be helpful.
